RESUMEN Introducción: la sensibilización a Blomia tropicalis resulta elevada entre los asmáticos y compite en importancia en cuanto a sensibilización alérgica. Objetivo: caracterizar la respuesta cutánea positiva al ácaro Blomia tropicalis en la población alérgica. Métodos: se realizó un estudio observacional, descriptivo, transversal, desde enero-junio de 2023 en un universo de 187 pacientes de cinco-59 años con pruebas positivas al ácaro, atendidos en la consulta de Alergología del Policlínico Docente “Ernesto Guevara de la Serna” de Niquero, que coincidió con la muestra. Los resultados fueron procesados con el programa Statistical Package for Social Science, versión 26.0. Se aplicaron distribuciones de frecuencia absoluta y porcientos. Se calculó la media geométrica ± la desviación estándar del área del habón. Para las variables cuantitativas y cualitativas se utilizó la prueba de Chi-cuadrado con un nivel de significación p≤0.05. Resultados: predominaron los pacientes de cinco-15 años (46,52 %) y del sexo femenino (56,8 %). El asma bronquial y la rinitis fueron las enfermedades alérgicas con mayor sensibilización (52,41 % y 28,34 %), respectivamente. Prevaleció la intensidad de la reacción ligera (44,39 %) con un diámetro promedio del habón de 3,50±0,47. El perfil de sensibilización más frecuente fue la polisensibilización (71,66 %). Conclusiones: la respuesta cutánea al ácaro Blomia tropicalis en la población alérgica de Niquero obedece a perfiles de polisensibilización en enfermedades de índole respiratoria. La intensidad de la reacción detectada sugiere que existe una relación directa de este alergeno con el daño a la salud expresado principalmente en el asma bronquial y la rinitis.

ABSTRACT Introduction: in Cuba the sensitization to Blomia tropicalis it can catch up with numbers lifted between the asthmatic. At tropical humid regions this sort, compete in importance or even the first place as to allergic sensitization can occupy population. Objective: characterize the cutaneous positive answer to the acarus Blomia tropicalis in the allergic population. Methods: an observational, descriptive, cross-sectional study was carried out from January-June 2023 in a universe of 187 patients aged 5-59 years with positive tests for the mite, treated in the Allergology consultation of the “Ernesto Guevara of the Serna” Teaching Polyclinic of Niquero, who coincided with the sample. The results were processed with the Statistical Package for Social Science program, version 26.0. Absolute frequency and percentage distributions were applied. The geometric mean ± standard deviation of the wheal area was calculated. For the quantitative and qualitative variables, the Chi-square test was used with a significance level of p≤0.05. Results: the patients of the group of 5 to 15 years (46,52 %) and of the female sex predominated in the series (56,68 %). Spasmodic asthma and rhinitis were the allergic diseases with bigger sensitization to the acarus Bt (52,41 % and 28,34 %), respectively. The intensity of the reaction that prevailed was the light (44,39 %) with an average diameter of 3,50±0,47's habón. The profile of more frequent sensitization turned out to be the poly-sensitization (71,66 %). Conclusions: the cutaneous answer to the acarus Blomia tropicalis in Niquero's allergic population to obeys profiles of poly-sensitization most of all in diseases of respiratory nature. The intensity of the reaction detected suggests that there is a direct relationship between this allergen and health damage expressed mainly in bronchial asthma and rhinitis.

Abstract Mexico ranks second in raspberry production and very little knowledge has been generated about the mites associated with this crop. In the present work, mites collected in the aerial part of raspberries produced in the municipalities of Zamora and Los Reyes de Salgado, Michoacán, Mexico from February 2018 to March 2019, were identified. In Los Reyes, 8 748 mites belonging to four families and nine species were recorded. The species found were Amblydromalus ca. congeae, Neoseiulus californicus, Phytoseiulus persimilis, Typhlodromips sp., Euseius mesembrinus, Euseius sp. (Phytoseiidae), Tetranychus ludeni (Tetranychidae), Tarsonemus sp. (Tarsonemidae), and Tyrophagus putrescentiae (Acaridae). A total of 4 253 adult specimens of two species were collected in Zamora, Neoseiulus fallacis with 235 (Phytoseiidae) and Tetranychus ludeni with 4 018 (Tetranychidae).

Resumen México ocupa el segundo lugar como productor de frambuesa y es muy poco el conocimiento generado de los ácaros asociados a este cultivo. En el presente trabajo se identificaron los ácaros recolectados en la parte aérea de frambuesa, producidas en los municipios de Zamora y Los Reyes de Salgado, Michoacán, México de febrero de 2018 a marzo de 2019. En los Reyes se registraron 8 748 ácaros pertenecientes a cuatro familias y nueve especies. Las especies encontradas fueron Amblydromalus ca. congeae, Neoseiulus californicus, Phytoseiulus persimilis, Typhlodromips sp., Euseius mesembrinus, Euseius sp. (Phytoseiidae), Tetranychus ludeni (Tetranychidae), Tarsonemus sp., (Tarsonemidae) y Tyrophagus putrescentiae (Acaridae). En Zamora se recolectaron en total 4 253 individuos adultos de dos especies, Neoseiulus fallacis con 235 (Phytoseiidae) y Tetranycus ludeni 4 018 (Tetranychidae).

Abstract Due to the irrational use of chemicals for pest control in intensive crops, the diversity of communities of beneficial organisms, such as the predatory mites of the order Mesostigmata, has been alarmingly diminished,. These arachnids have taken on agricultural relevance because most of their members have zoophagic feeding habits and naturally regulate harmful populations of insects, nematodes and other mites that inhabit plants. For more than 40 years, predatory mites have been introduced regularly for biocontrol work and it is estimated that more than 60% of programs use these organisms; however, the commercial products available are limited to a few species, which vary in effectiveness according to the conditions of the crop, availability of prey and competition for niches with other predatory organisms; in addition, their production is protected under trade secrecy in most cases. With this, the opportunity opens up to explore native or even already commercialized species in order to evaluate their predatory capacity at the research level or as usual tools for pest regulation; a first challenge for this purpose is propagation and culture methods. The methods for mite culture can be divided into two: maintenance on plants and in confinement; although each technique has been developed for a particular species or a certain purpose, knowing their basic design promises to bring us closer to a new line of study for their introduction and reintroduction into agricultural systems.

Resumen Debido al uso irracional de productos químicos para el control de plagas en los cultivos intensivos, se han disminuido de manera alarmante la diversidad de comunidades de organismos benéficos, tal es el caso de los ácaros depredadores del orden Mesostigmata. Estos arácnidos han tomado relevancia agrícola debido a que, la mayoría de sus miembros presentan hábitos alimentarios zoofágicos y regulan de manera natural poblaciones perjudiciales de insectos, nematodos y otros ácaros que habitan las plantas. De manera regular, desde hace más de 40 años se introducen los ácaros depredadores para los trabajos de biocontrol y se estima que más de 60% de los programas utilizan estos organismos; sin embargo, los productos comerciales disponibles están limitados a unas pocas especies, las cuales varían en efectividad según las condiciones del cultivo, disponibilidad de presas y competencia de nichos con otros organismos también depredadores, además, su producción está resguardada bajo secreto empresarial en la mayoría de los casos. Con esto, se abre la oportunidad para explorar especies nativas o incluso ya comercializadas, con el fin de evaluar su capacidad depredadora a nivel de investigación o como herramientas habituales para la regulación de plagas, un primer reto para este fin es la propagación y los métodos de cultivo. Los métodos para cultivar ácaros se pueden dividir en dos: mantenimiento sobre plantas y en confinamiento, aunque cada técnica se ha desarrollado para una especie en particular o un fin determinado, el conocer su diseño básico, promete acercarnos a una nueva línea de estudio para su introducción y reintroducción en los sistemas agrícolas.

Abstract Jalisco is one of the main honey bee producing states in Mexico. However, information on the parasitoses that affect the productivity of honey bee (Apis mellifera) colonies in the state is limited and addresses only a few regions. The objective of this study was to determine the prevalence and intensity of two parasitic diseases of Apis mellifera -varroosis (Varroa destructor) and nosemosis (Vairimorpha spp.)- in six regions of Jalisco. Bees from 365 colonies collected during the spring were analyzed. Varroosis was the most frequent parasitosis (90 %), and nosemosis was the least frequent (15 %). The infestation or infection levels of these parasitoses were generally low: <5 % (mites per 100 bees) for varroosis, and <310,000 spores/bee for nosemosis. The regions with the highest prevalence and intensity of V. destructor were the Highlands, the Center, and the South, while infections by Vairimorpha ceranae -the only species of the fungus found- were significantly higher in the Southeastern and Southern regions. It is advisable to carry out epidemiological studies at other times of the year in order to detect possible seasonal effects of parasitoses for the purpose of designing strategies for their control.

Resumen Jalisco es uno de los principales estados productores de miel de abejas en México. Sin embargo, la información sobre parasitosis que afectan la productividad de las colonias de abejas melíferas (Apis mellifera) en el estado es limitada y de pocas regiones. El objetivo de este estudio fue determinar la prevalencia e intensidad de dos enfermedades parasitarias de Apis mellifera, varroosis (Varroa destructor) y nosemosis (Vairimorpha spp.), en seis regiones de Jalisco. Se analizaron abejas de 365 colonias colectadas durante la primavera. La varroosis fue la parasitosis más frecuente (90 %) y la nosemosis la menos frecuente (15 %). Los niveles de infestación o infección de las parasitosis fueron en general bajos. Para varroosis, <5 % (ácaros en 100 abejas) y para nosemosis, <310,000 esporas/abeja. Las regiones con mayor prevalencia e intensidad de V. destructor fueron Altos, Centro y Sur, mientras que las infecciones por Vairimorpha ceranae, la única especie del hongo encontrada, fueron significativamente más altas en las regiones Sureste y Sur. Se recomienda realizar estudios epidemiologicos en otras épocas del año para detectar posibles efectos estacionales de las parasitosis para diseñar estrategias para su control.

Resumo O ácaro da tamareira, Oligonychus afrasiaticus (McGregor) (Acari: Tetranychidae), é uma praga grave das tâmaras no Médio Oriente e Norte de África, causando graves danos econômicos se não for controlado precocemente. Como os ácaros predadores são conhecidos por serem potenciais agentes de biocontrole contra diversas pragas, também a capacidade de predação, tabela de vida, reprodução e sobrevivência de Amblyseius swirskii Athias-Henriot e Neoseiulus cucumeris (Oudemans) (Acari: Phytoseiidae), coletados em fazendas de tamareiras em Qassim Arábia Saudita, foram estudados em condições de laboratório (25 °C, 30 °C, 35 °C e 50 ± 5% UR) contra todos os estágios móveis de O. afrasiaticus. Para ambos os predadores, o tempo médio de desenvolvimento, o período de oviposição e a longevidade foram inversamente relacionados à temperatura de 25 °C a 35 °C. Vários parâmetros foram estudados para A. swirskii e N. cucumeris a 25 °C, 30 °C e 35 °C, ou seja, o tempo de desenvolvimento feminino, 9,37, 7,29, 5,56 e 10,67, 8,38, 6,45 d; período de oviposição, 19,77, 16,18, 13,94 e 15,90, 13,84, 10,64 d; longevidade, 29,39, 24,79, 20,64 e 25,42, 21,94, 17,39 dias; fecundidade, 31,91, 37,10, 42,16 e 21,75, 26,84, 30,56 ovos por fêmea, respectivamente. A taxa máxima de predação diária para ambos os predadores foi registrada a 35 °C durante o período de oviposição. A predação total de fêmeas de A. swirskii e N. cucumeris foi de 370,86, 387,54, 405,83, 232,14, 263,32, 248,85 presas a 25 °C, 30 °C e 35 °C respectivamente. A taxa máxima de reprodução de A. swirskii e N. cucumeris (3,02; 2,87 ovos/♀/dia) foi registrada a 35 °C, enquanto a mínima (2,00; 1,36 ovos/♀/dia) foi registrada a 25 °C. Os parâmetros da tabela de vida foram estimados como taxa reprodutiva líquida (Ro) 21,68, 25,94, 29,52 e 18,95, 20,25, 22,78; o tempo médio de geração (T) 24,92, 21,82, 18,24 e 26,30, 23,60, 20,56 d; a taxa intrínseca de aumento (rm) 0,181, 0,232, 0,248 e 0,170, 0,185, 0,196; a taxa finita de aumento (λ) 1,365, 1,551, 1,706 e 1,126, 1,324, 1,428 para A. swirskii e N. cucumeris a 25 °C, 30 °C e 35 °C respectivamente. Os resultados deste estudo sugerem que as duas espécies de fitoseídeos são promissores agentes de controle biológico de O. afrasiaticus em uma ampla faixa de temperaturas. tamareira McGregor (McGregor Acari (Acari Tetranychidae, Tetranychidae , Tetranychidae) África precocemente pragas AthiasHenriot Athias Henriot Oudemans (Oudemans Phytoseiidae, Phytoseiidae Phytoseiidae) Saudita (2 C 3 5 UR 2 N seja feminino 937 9 37 9,37 729 7 29 7,29 556 56 5,5 1067 10 67 10,67 838 8 38 8,38 645 6 45 6,4 d 1977 19 77 19,77 1618 16 18 16,18 1394 13 94 13,9 1590 15 90 15,90 1384 84 13,84 1064 64 10,6 2939 39 29,39 2479 24 79 24,79 2064 20 20,6 2542 42 25,42 2194 21 21,94 1739 17 17,3 dias fecundidade 3191 31 91 31,91 3710 37,10 4216 42,1 2175 75 21,75 2684 26 26,84 3056 30,5 fêmea respectivamente 37086 370 86 370,86 38754 387 54 387,54 40583 405 83 405,83 23214 232 14 232,14 26332 263 32 263,32 24885 248 85 248,8 3,02 302 02 (3,02 287 87 2,8 ovos/♀/dia ovosdia dia 2,00 200 00 (2,00 136 1 36 1,3 Ro (Ro 2168 68 21,68 2594 25,94 2952 52 29,5 1895 95 18,95 2025 20,25 22,78 2278 22 78 T (T 2492 92 24,92 2182 82 21,82 1824 18,2 2630 26,30 2360 23 60 23,60 2056 20,5 rm (rm 0181 0 181 0,181 0232 0,232 0248 0,24 0170 170 0,170 0185 185 0,185 0,196 0196 196 λ (λ 1365 365 1,365 1551 551 1,551 1706 706 1,70 1126 126 1,126 1324 324 1,324 1428 428 1,42 temperaturas ( 93 9,3 72 7,2 55 5, 106 8,3 4 6, 197 19,7 161 16,1 139 13, 159 15,9 138 13,8 10, 293 29,3 247 24,7 206 20, 254 25,4 219 21,9 173 17, 319 31,9 371 37,1 421 42, 217 21,7 268 26,8 305 30, 3708 370,8 3875 387,5 4058 40 405,8 2321 232,1 2633 263,3 2488 248, 3,0 (3,0 28 2, 2,0 (2,0 1, 216 21,6 259 25,9 295 29, 189 18,9 202 20,2 22,7 227 249 24,9 218 21,8 182 18, 26,3 236 23,6 205 018 0,18 023 0,23 024 0,2 017 0,17 0,19 019 155 1,55 70 1,7 112 12 1,12 132 1,32 142 1,4 9, 7, 8, 19, 16, 15, 24, 25, 21, 31, 37, 26, 370, 387, 405, 232, 263, 3, (3, (2, 22, 23, 01 0,1 0, 1,5 11 1,1 (3

Abstract The date palm mite, Oligonychus afrasiaticus (McGregor) (Acari: Tetranychidae), is a serious pest of dates in the Middle East and North Africa, inflicting severe economic damage if not controlled early. As predaceous mites are known to be potential biocontrol agents against several pests, so predation capacity, life table, reproduction, and survival of Amblyseius swirskii Athias-Henriot and Neoseiulus cucumeris (Oudemans) (Acari: Phytoseiidae), collected from date palm farms in Qassim Saudi Arabia, were studied under laboratory conditions (25 °C, 30 °C, 35 °C and 50 ± 5% RH) against all motile stages of O. afrasiaticus. For both predators, mean developmental time, oviposition period, and longevity were inversely related to temperature from 25 to 35 °C. Various parameters were studied for A. swirskii and N. cucumeris at 25 °C, 30 °C and 35 °C, i.e. the female developmental time, 9.37, 7.29, 5.56, and 10.67, 8.38, 6.45 d; oviposition period, 19.77, 16.18, 13.94 and 15.90, 13.84, 10.64 d; longevity, 29.39, 24.79, 20.64 and 25.42, 21.94, 17.39 d; fecundity, 31.91, 37.10, 42.16 and 21.75, 26.84, 30.56 eggs per female, respectively. The maximum daily predation rate for both the predators was recorded at 35 °C during the oviposition period. The total predation of A. swirskii and N. cucumeris female was 370.86, 387.54, 405.83, 232.14, 263.32, 248.85 preys at 25 °C, 30 °C and 35 °C respectively. The maximum reproduction rate of A. swirskii and N. cucumeris (3.02, 2.87 eggs/♀/day) was recorded at 35 °C while the minimum (2.00, 1.36 eggs/♀/day) was recorded at 25 °C. The life table parameters were estimated as net reproductive rate (Ro) 21.68, 25.94, 29.52 and 18.95, 20.25, 22.78; the mean generation time (T) 24.92, 21.82, 18.24 and 26.30, 23.60, 20.56 d; the intrinsic rate of increase (rm) 0.181, 0.232, 0.248 and 0.170, 0.185, 0.196; the finite rate of increase (λ) 1.365, 1.551, 1.706 and 1.126, 1.324, 1.428 for A. swirskii and N. cucumeris at 25 °C, 30 °C and 35 °C respectively. The results of this study suggested that the two phytoseiid species are promising biological control agents of O. afrasiaticus at a wide range of temperatures. mite McGregor (McGregor Acari (Acari Tetranychidae, Tetranychidae , Tetranychidae) Africa early pests capacity AthiasHenriot Athias Henriot Oudemans (Oudemans Phytoseiidae, Phytoseiidae Phytoseiidae) Arabia (2 C 3 5 RH O period 2 A N ie i e i.e 937 9 37 9.37 729 7 29 7.29 556 56 5.56 1067 10 67 10.67 838 8 38 8.38 645 6 45 6.4 d 1977 19 77 19.77 1618 16 18 16.18 1394 13 94 13.9 1590 15 90 15.90 1384 84 13.84 1064 64 10.6 2939 39 29.39 2479 24 79 24.79 2064 20 20.6 2542 42 25.42 2194 21 21.94 1739 17 17.3 fecundity 3191 31 91 31.91 3710 37.10 4216 42.1 2175 75 21.75 2684 26 26.84 3056 30.5 respectively 37086 370 86 370.86 38754 387 54 387.54 40583 405 83 405.83 23214 232 14 232.14 26332 263 32 263.32 24885 248 85 248.8 3.02, 302 02 (3.02 287 87 2.8 eggs/♀/day eggsday day 2.00, 200 00 (2.00 136 1 36 1.3 Ro (Ro 2168 68 21.68 2594 25.94 2952 52 29.5 1895 95 18.95 2025 20.25 22.78 2278 22 78 T (T 2492 92 24.92 2182 82 21.82 1824 18.2 2630 26.30 2360 23 60 23.60 2056 20.5 rm (rm 0181 0 181 0.181 0232 0.232 0248 0.24 0170 170 0.170 0185 185 0.185 0.196 0196 196 λ (λ 1365 365 1.365 1551 551 1.551 1706 706 1.70 1126 126 1.126 1324 324 1.324 1428 428 1.42 temperatures ( 93 9.3 72 7.2 55 5.5 106 8.3 4 6. 197 19.7 161 16.1 139 13. 159 15.9 138 13.8 10. 293 29.3 247 24.7 206 20. 254 25.4 219 21.9 173 17. 319 31.9 371 37.1 421 42. 217 21.7 268 26.8 305 30. 3708 370.8 3875 387.5 4058 40 405.8 2321 232.1 2633 263.3 2488 248. 3.02 (3.0 28 2. 2.00 (2.0 1. 216 21.6 259 25.9 295 29. 189 18.9 202 20.2 22.7 227 249 24.9 218 21.8 182 18. 26.3 236 23.6 205 018 0.18 023 0.23 024 0.2 017 0.17 0.19 019 155 1.55 70 1.7 112 12 1.12 132 1.32 142 1.4 9. 7. 5. 8. 19. 16. 15. 24. 25. 21. 31. 37. 26. 370. 387. 405. 232. 263. 3.0 (3. 2.0 (2. 22. 23. 01 0.1 0. 1.5 11 1.1 3. (3

Abstract Phytophagous mites are dangerous pests, causing economic losses to the world’s crops. Nanotechnology is a promising field for pests and disease management, and enhancement of agricultural productivity. The aim of the study was to evaluation of the effectiveness of copper nanoparticles (CuNP) against all stages of eriophyid mite, the citrus rust mite, Phyllocoptruta oleivora (Ashmead) (Acari: Eriophyidae) and tetranychid mite, the citrus brown mite Eutetranychus orientalis (Klein) (Acari: Tetranychidae), and Tenuipalpid mite, the false spider mite, Brevipalpus obovatus Donnadieu (Acari: Tenuipalpidae). This includes its impacts on predacious mites, Amblyseius swirskii Athias-Henriot and Euseius scutalis (Athias-Henriot) (Acari: Phytoseiidae), on orange trees under field conditions. Five different concentrations of copper nanoparticles (40, 80, 160, 240, and 320 ppm), as well as the control (well water) were examined. The obtained results indicated that the mortality rate of both phytophagous and predacious mites was associated with an increase in the concentrations of copper nanoparticles. Copper nanoparticles were significantly effective in killing P. oleivora, E. orientalis and B. obovatus with minimal effects on A. swirskii and E. scutalis. The mortality percentage was 15.24, 20.32, 46.32, 78.97 and 86.37% for P. oleivora, 6.87, 9.86, 28.91, 56.30 and 77.52% for E. orientalis and 8.38, 23.50, 48.83, 68.80 and 84.08% for B. obovatus while the mortality percentage was 0.00, 0.56, 5.83, 9.91 and 15.19% for A. swirskii and 0.44, 3.96, 6.93, 8.63 and 21.39% for E. scutalis one week after exposure to 40, 80, 160, 240 and 320 ppm of copper nanoparticles, respectively. Moreover, the results showed that copper nanoparticles caused a reduction in the percentage of eggs hatching. The percentages of larvae hatching from eggs were 96.29, 80.00, 64.13, 45.66 and 32.17% for P. oleivora, 97.38, 83.28, 69.41, 48.01 and 35.29 for E. orientalis and 96.60, 76.92, 56.38, 40.55 and 33.28% for B. obovatus one week after exposure to copper nanoparticles at 40, 80, 160, 240 and 320 ppm respectively, compared with the control (well water). According to the results, the use of copper nanoparticles significant effect on reducing the population of phytophagous mites associated with orange trees, with low detrimental effects on predatory mites. worlds world s crops management productivity CuNP (CuNP Ashmead (Ashmead Acari (Acari Eriophyidae Klein (Klein Tetranychidae, Tetranychidae , Tetranychidae) Tenuipalpidae. Tenuipalpidae . Tenuipalpidae) AthiasHenriot Athias Henriot (Athias-Henriot Phytoseiidae, Phytoseiidae Phytoseiidae) conditions 40 (40 80 160 32 ppm, ppm) water examined P E B A 1524 15 24 15.24 2032 20 20.32 4632 46 46.32 7897 78 97 78.9 8637 86 37 86.37 687 6 87 6.87 986 9 9.86 2891 28 91 28.91 5630 56 30 56.3 7752 77 52 77.52 838 8 38 8.38 2350 23 50 23.50 4883 48 83 48.83 6880 68 68.8 8408 84 08 84.08 000 0 00 0.00 056 0.56 583 5 5.83 991 9.9 1519 19 15.19 044 44 0.44 396 3 96 3.96 693 93 6.93 863 63 8.6 2139 21 39 21.39 respectively Moreover 9629 29 96.29 8000 80.00 6413 64 13 64.13 4566 45 66 45.6 3217 17 32.17 9738 97.38 8328 83.28 6941 69 41 69.41 4801 01 48.0 3529 35 35.2 9660 60 96.60 7692 76 92 76.92 5638 56.38 4055 55 40.5 3328 33 33.28 water. 4 (4 16 152 1 2 15.2 203 20.3 463 46.3 789 7 78. 86.3 6.8 98 9.8 289 28.9 563 56. 775 77.5 8.3 235 23.5 488 48.8 688 68. 840 84.0 0.0 05 0.5 58 5.8 99 9. 151 15.1 04 0.4 3.9 6.9 8. 213 21.3 962 96.2 800 80.0 641 64.1 456 45. 321 32.1 973 97.3 832 83.2 694 69.4 480 48. 352 35. 966 96.6 769 76.9 405 40. 332 33.2 ( 15. 20. 46. 86. 6. 28. 77. 23. 84. 0. 5. 3. 21. 96. 80. 64. 32. 97. 83. 69. 76. 33.

Resumo Os ácaros fitófagos são pragas perigosas, causando prejuízos econômicos às lavouras mundiais. A nanotecnologia é um campo promissor para o manejo de pragas e doenças, aumentando a produtividade agrícola. O objetivo do presente estudo foi avaliar a eficácia de nanopartículas de cobre (CuNP) em laranjeiras em condições de campo, contra todos os estágios das seguintes espécies: o ácaro eriofídeo, também chamado de ácaro da falsa ferrugem dos citros, ou Phyllocoptruta oleivora (Ashmead) (Acari: Eriophyidae); o ácaro tetraniquídeo, também chamado de ácaro marrom dos citros, ou Eutetranychus orientalis (Klein) (Acari: Tetranychidae); e o ácaro Tenuipalpidae, também chamado de falso ácaro, ou Brevipalpus obovatus (Donnadieu) (Acari: Tenuipalpidae). Isso inclui seus impactos sobre ácaros predadores, como o Amblyseius swirskii Athias-Henriot e o Euseius scutalis (Athias-Henriot) (Acari: Phytoseiidae). Foram examinadas cinco diferentes concentrações de nanopartículas de cobre (40, 80, 160, 240 e 320 ppm), assim como o controle (água de poço). Os resultados obtidos indicaram que a taxa de mortalidade de ácaros fitófagos e predadores esteve associada ao aumento das concentrações de nanopartículas de cobre. As nanopartículas de cobre foram significativamente eficazes em matar o P. oleivora, o E. orientalis e o B. obovatus, com efeitos mínimos sobre o A. swirskii e o E. scutalis. As porcentagens de mortalidade foram: 15,24, 20,32, 46,32, 78,97 e 86,37% para P. oleivora; 6,87, 9,86, 28,91, 56,30 e 77,52% para E. orientalis; 8,38, 23,50, 48,83, 68,80 e 84,08% para B. obovatus; 0,00, 0,56, 5,83, 9,91 e 15,19% para A. swirskii; e 0,44, 3,96, 6,93, 8,63 e 21,39% para E. scutalis, uma semana após a exposição a 40, 80, 160, 240 e 320 ppm de nanopartículas de cobre, respectivamente. Além disso, os resultados mostraram que as nanopartículas de cobre causaram uma redução na porcentagem de eclosão dos ovos. As porcentagens de larvas eclodindo dos ovos foram: 96,29, 80,00, 64,13, 45,66 e 32,17% para P. oleivora; 97,38, 83,28, 69,41, 48,01 e 35,29 para E. orientalis; e 96,60, 76,92, 56,38, 40,58 e 33,29 para B. obovatus, uma semana após a exposição às nanopartículas de cobre a 40, 80, 160, 240 e 320 ppm, respectivamente, em comparação com o controle (água de poço). De acordo com os resultados, o uso de nanopartículas de cobre teve efeito significativo na redução da população de ácaros fitófagos associados às laranjeiras, com baixo efeito prejudicial aos ácaros predadores. perigosas mundiais doenças agrícola CuNP (CuNP espécies eriofídeo citros Ashmead (Ashmead Acari (Acari Eriophyidae Eriophyidae) tetraniquídeo Klein (Klein Tetranychidae Tetranychidae) Tenuipalpidae Donnadieu (Donnadieu Tenuipalpidae. . Tenuipalpidae) AthiasHenriot Athias Henriot (Athias-Henriot Phytoseiidae. Phytoseiidae Phytoseiidae) 40 (40 80 160 24 32 , ppm) água poço. poço poço) P E B 1524 15 15,24 2032 20 20,32 4632 46 46,32 7897 78 97 78,9 8637 86 37 86,37 687 6 87 6,87 986 9 9,86 2891 28 91 28,91 5630 56 30 56,3 7752 77 52 77,52 838 8 38 8,38 2350 23 50 23,50 4883 48 83 48,83 6880 68 68,8 8408 84 08 84,08 000 0 00 0,00 056 0,56 583 5 5,83 991 9,9 1519 19 15,19 044 44 0,44 396 3 96 3,96 693 93 6,93 863 63 8,6 2139 21 39 21,39 respectivamente disso 9629 29 96,29 8000 80,00 6413 64 13 64,13 4566 45 66 45,6 3217 17 32,17 9738 97,38 8328 83,28 6941 69 41 69,41 4801 01 48,0 3529 35 35,2 9660 60 96,60 7692 76 92 76,92 5638 56,38 4058 58 40,5 3329 33 33,2 4 (4 16 2 152 1 15,2 203 20,3 463 46,3 789 7 78, 86,3 6,8 98 9,8 289 28,9 563 56, 775 77,5 8,3 235 23,5 488 48,8 688 68, 840 84,0 0,0 05 0,5 5,8 99 9, 151 15,1 04 0,4 3,9 6,9 8, 213 21,3 962 96,2 800 80,0 641 64,1 456 45, 321 32,1 973 97,3 832 83,2 694 69,4 480 48, 352 35, 966 96,6 769 76,9 405 332 33, ( 15, 20, 46, 86, 6, 28, 77, 23, 84, 0, 5, 3, 21, 96, 64, 32, 97, 83, 69, 76,

Abstract The present study has been conducted to evaluate the effect of two sprays of seven pesticides at recommended dose on citrus brown mite, Eutetranychus orientalis and the side effects on their predatory mites, Euseius scutalis, Amblyseius swirskii, Phytoseiulus persimilis (Acari: Phytoseiidae) under field conditions at 2022 & 2023 seasons. The obtained results show that, all tested pesticides achieved high reduction % of E. orientalis ranged between (82.1-90.0%) and (81.6-87.1%) after the 1st and 2nd sprays of 2022 season, where it ranged between (84.9- 88.7%) and ( 79.7- 88.7%) after 1st and 2nd sprays of 2023 season. Abamectin recorded the highest reduction % against the citrus brown mite, whereas Congest pesticide recorded the lowest reduction % after the two sprays along 2022 & 2023 seasons. As for the side effects of tested pesticides on associated predatory mites, all pesticides were safely for E. scutalis numbers recording decrease % between (18.4-28.6%) and (16.2 -26.1%) after the 1st and 2nd spray at 2022 season , where it ranged between (15.3- 29.1%) and (19.6-32.0%) after the 1st and 2nd sprays of 2023 season. On contrary, imidacloprid was unsafely for E. scutalis numbers recording the highest mean decrease % after 1st and 2nd sprays during the two seasons. Also, all tested pesticides were safely for A. swirskii numbers, after the 1st and 2nd sprays of the two seasons recording decrease (from 10.9 to 28.1%) & (24.4 to 31.4%) for the 2022 season, and (19-38.9%) & (18.7-39.4%) at 2023 season. On contrary, imidacloprid was unsafely for A. swirskii numbers recorded the highest decrease % after 1st and 2nd sprays during the two seasons. As for, Ph. Persimilis numbers, all tested pesticides were safely, where it recorded low decrease % ranged between (17-33.8%) & (20.4-34.8%) after the 1st and 2nd sprays of 2022 season, and (24.3-39%) & (20.2-28.9%) after the 1st and 2nd sprays of 2023 season. On the other side, imidacloprid was unsafely for Ph. persimilis numbers recording the highest decrease % after the 1st and 2nd sprays during the two seasons. The present study proved that all tested pesticides were high effective against E. orientalis and appeared to be safely and selective for associated predatory mites except imidacloprid which was very harmful for all tested predatory mites, and it could be concluded that the tested pesticides, Fenpyroximate, Hexythiazox , Congest , Spirodiclofen, Abamectin, and Chlorfenapyr could be used in the Integrated Pest Management (IPM) programs for E. orientalis at citrus orchards. mite Acari (Acari Phytoseiidae 202 E 82.190.0% 821900 82.1 90.0% 82 1 90 0 (82.1-90.0% 81.687.1% 816871 81.6 87.1% 81 6 87 (81.6-87.1% st nd 84.9 849 84 9 (84.9 88.7% 887 88 7 79.7 797 79 18.428.6% 184286 18.4 28.6% 18 4 28 (18.4-28.6% 16.2 162 16 2 (16. 26.1% 261 26 -26.1% 15.3 153 15 3 (15.3 29.1% 291 29 19.632.0% 196320 19.6 32.0% 19 32 (19.6-32.0% contrary Also A from 109 10 10. 28.1% 281 24.4 244 24 (24. 31.4% 314 31 1938.9% 19389 38.9% 38 (19-38.9% 18.739.4% 187394 18.7 39.4% 39 (18.7-39.4% Ph 1733.8% 17338 17 33.8% 33 8 (17-33.8% 20.434.8% 204348 20.4 34.8% 20 34 (20.4-34.8% 24.339% 24339 24.3 39% (24.3-39% 20.228.9% 202289 20.2 28.9% (20.2-28.9% Fenpyroximate Spirodiclofen IPM (IPM orchards 190 82.190.0 82190 821 82. 900 90.0 (82.1-90.0 687 81.687.1 81687 816 81. 871 87.1 (81.6-87.1 84. (84. 88.7 79. 428 18.428.6 18428 184 18. 286 28.6 (18.4-28.6 16. (16 26.1 -26.1 15. (15. 29.1 632 19.632.0 19632 196 19. 320 32.0 (19.6-32.0 28.1 24. (24 31.4 1938 1938.9 389 38.9 (19-38.9 739 18.739.4 18739 187 394 39.4 (18.7-39.4 1733 1733.8 338 33.8 (17-33.8 434 20.434.8 20434 204 20. 348 34.8 (20.4-34.8 339 24.339 2433 243 (24.3-39 228 20.228.9 20228 289 28.9 (20.2-28.9 82.190. 8219 90. (82.1-90. 68 81.687. 8168 87. (81.6-87. (84 88. 42 18.428. 1842 28. (18.4-28. (1 26. -26. (15 29. 63 19.632. 1963 32. (19.6-32. (2 31. 193 1938. 38. (19-38. 73 18.739. 1873 39. (18.7-39. 173 1733. 33. (17-33. 43 20.434. 2043 34. (20.4-34. 24.33 (24.3-3 22 20.228. (20.2-28. 82.190 (82.1-90 81.687 (81.6-87 (8 18.428 (18.4-28 -26 19.632 (19.6-32 (19-38 18.739 (18.7-39 (17-33 20.434 (20.4-34 (24.3- 20.228 (20.2-28 82.19 (82.1-9 81.68 (81.6-8 18.42 (18.4-2 -2 19.63 (19.6-3 (19-3 18.73 (18.7-3 (17-3 20.43 (20.4-3 (24.3 20.22 (20.2-2 (82.1- (81.6- (18.4- - (19.6- (19- (18.7- (17- (20.4- (20.2- (82.1 (81.6 (18.4 (19.6 (19 (18.7 (17 (20.4 (20.2 (82. (81. (18. (19. (20. (82 (81 (18 (20

Resumo O presente estudo foi realizado para avaliar o efeito de duas pulverizações de sete pesticidas na dose recomendada sobre o ácaro marrom dos citros, Eutetranychus orientalis, e os efeitos colaterais sobre seus ácaros predadores, Euseius scutalis, Amblyseius swirskii, Phytoseiulus persimilis (Acari: Phytoseiidae) em campo, nas condições das temporadas de 2022 e 2023. Os resultados obtidos mostram que todos os pesticidas testados alcançaram alta redução (%) de E. orientalis, a qual variou entre (82,1-90,0%) e (81,6-87,1%) após a primeira e a segunda pulverizações da temporada de 2022. A redução variou entre (84,9-88,7%) e (79,7-88,7%) após a primeira e a segunda pulverizações da temporada 2023. A abamectina registrou a maior redução (%) contra o ácaro marrom dos citros, enquanto o pesticida Congest registrou a menor redução (%) após as duas pulverizações ao longo das temporadas de 2022 e 2023. Quanto aos efeitos colaterais dos pesticidas testados em ácaros predadores associados, todos os pesticidas foram seguros para números de E. scutalis, registrando diminuição (%) entre (18,4-28,6%) e (16,2-26,1%) após a primeira e a segunda pulverizações na temporada de 2022, a qual variou entre (15,3-29,1%) e (19,6-32,0%) após a primeira e a segunda pulverizações da safra 2023. Pelo contrário, o imidaclopride não foi seguro para os números de E. scutalis, registando a maior diminuição média (%) após a primeira e a segunda pulverizações durante as duas estações. Além disso, todos os pesticidas testados foram seguros para números de A. swirskii, após a primeira e a segunda pulverizações das duas temporadas, registrando diminuição (de 10,9 para 28,1%) e (de 24,4 para 31,4%) para a temporada de 2022, e (19-38,9%) e (18,7-39,4%), na temporada de 2023. Pelo contrário, o imidaclopride não era seguro para A. swirskii e os números registraram a maior diminuição (%) após a primeira e a segunda pulverizações durante as duas estações. Quanto aos números de P. Persimilis, todos os pesticidas testados foram seguros, em que se registrou baixa porcentagem de redução, variando entre (17-33,8%) e (20,4-34,8%) após a primeira e a segunda pulverizações da temporada de 2022, e (24,3-39%) & (20,2-28,9%) após a primeira e a segunda pulverizações da temporada de 2023. Por outro lado, o imidaclopride não foi seguro para os números de P. persimilis, registando a maior diminuição (%) após a primeira e a segunda pulverizações durante as duas épocas. O presente estudo provou que todos os pesticidas testados foram altamente eficazes contra E. orientalis e parecem ser seguros e seletivos para os ácaros predadores associados, exceto o imidaclopride, que foi muito prejudicial para todos os ácaros predadores testados. Pôde-se concluir que os pesticidas testados, Fenpiroximato, Hexitiazox, Congest, Espirodiclofeno, Abamectina e Clorfenapir, poderiam ser usados nos programas de Manejo Integrado de Pragas (MIP) para E. orientalis em pomares cítricos. citros scutalis Acari (Acari Phytoseiidae campo 202 2023 % (% E 82,190,0% 821900 82,1 90,0% 82 1 90 0 (82,1-90,0% 81,687,1% 816871 81,6 87,1% 81 6 87 (81,6-87,1% 84,988,7% 849887 84,9 88,7% 84 9 88 7 (84,9-88,7% 79,788,7% 797887 79,7 79 (79,7-88,7% associados 18,428,6% 184286 18,4 28,6% 18 4 28 (18,4-28,6% 16,226,1% 162261 16,2 26,1% 16 2 26 (16,2-26,1% 15,329,1% 153291 15,3 29,1% 15 3 29 (15,3-29,1% 19,632,0% 196320 19,6 32,0% 19 32 (19,6-32,0% contrário estações disso 109 10 10, 28,1% 281 244 24 24, 31,4% 314 31 1938,9% 19389 38,9% 38 (19-38,9% 18,739,4%, 187394 18,7 39,4% , 39 (18,7-39,4%) P Persimilis 1733,8% 17338 17 33,8% 33 8 (17-33,8% 20,434,8% 204348 20,4 34,8% 20 34 (20,4-34,8% 24,339% 24339 24,3 39% (24,3-39% 20,228,9% 202289 20,2 28,9% (20,2-28,9% lado épocas Pôdese Pôde Fenpiroximato Hexitiazox Espirodiclofeno Clorfenapir MIP (MIP cítricos ( 190 82,190,0 82190 821 82, 900 90,0 (82,1-90,0 687 81,687,1 81687 816 81, 871 87,1 (81,6-87,1 988 84,988,7 84988 849 84, 887 88,7 (84,9-88,7 788 79,788,7 79788 797 79, (79,7-88,7 428 18,428,6 18428 184 18, 286 28,6 (18,4-28,6 226 16,226,1 16226 162 16, 261 26,1 (16,2-26,1 329 15,329,1 15329 153 15, 291 29,1 (15,3-29,1 632 19,632,0 19632 196 19, 320 32,0 (19,6-32,0 28,1 31,4 1938 1938,9 389 38,9 (19-38,9 739 18,739,4% 18739 187 394 39,4 (18,7-39,4% 1733 1733,8 338 33,8 (17-33,8 434 20,434,8 20434 204 20, 348 34,8 (20,4-34,8 339 24,339 2433 243 (24,3-39 228 20,228,9 20228 289 28,9 (20,2-28,9 82,190, 8219 90, (82,1-90, 68 81,687, 8168 87, (81,6-87, 98 84,988, 8498 88, (84,9-88, 78 79,788, 7978 (79,7-88, 42 18,428, 1842 28, (18,4-28, 22 16,226, 1622 26, (16,2-26, 15,329, 1532 29, (15,3-29, 63 19,632, 1963 32, (19,6-32, 31, 193 1938, 38, (19-38, 73 18,739,4 1873 39, (18,7-39,4 173 1733, 33, (17-33, 43 20,434, 2043 34, (20,4-34, 24,33 (24,3-3 20,228, (20,2-28, 82,190 (82,1-90 81,687 (81,6-87 84,988 (84,9-88 79,788 (79,7-88 18,428 (18,4-28 16,226 (16,2-26 15,329 (15,3-29 19,632 (19,6-32 (19-38 18,739, (18,7-39, (17-33 20,434 (20,4-34 (24,3- 20,228 (20,2-28 82,19 (82,1-9 81,68 (81,6-8 84,98 (84,9-8 79,78 (79,7-8 18,42 (18,4-2 16,22 (16,2-2 15,32 (15,3-2 19,63 (19,6-3 (19-3 18,739 (18,7-39 (17-3 20,43 (20,4-3 (24,3 20,22 (20,2-2 (82,1- (81,6- (84,9- (79,7- (18,4- (16,2- (15,3- (19,6- (19- 18,73 (18,7-3 (17- (20,4- (24, (20,2- (82,1 (81,6 (84,9 (79,7 (18,4 (16,2 (15,3 (19,6 (19 (18,7- (17 (20,4 (24 (20,2 (82, (81, (84, (79, (18, (16, (15, (19, (1 (18,7 (20, (2 (82 (81 (84 (79 (18 (16 (15 (20 (8 (7

Resumo O setor agrícola da Arábia Saudita está crescendo rapidamente e o tomate é uma cultura importante cultivada principalmente em estufas. Infelizmente, está enfrentando uma infestação severa devido a diversas espécies de ácaros. O presente estudo refere-se à avaliação da toxicidade do oxamil contra dois ácaros fitófagos; Aculops lycopersici e Tetranychus urticae, isolados de tomateiros infestados. Efeito simultâneo de oxamil em dois ácaros predadores; Neosiulus cucumeris e Euseius scutalis, também foi avaliado. Três concentrações de oxamil; metade da dose recomendada (HRD), dose recomendada (RD) e dose dupla recomendada (DRD), foram usados contra cada espécie de ácaro para observar a mortalidade em sete dias em comparação com o controle. Mortalidade significativa de 97,91% e 93,92% foi observada em A. lycopersici e T. urticae, respectivamente no RD. No caso de ácaros predadores; N. cucumeris e E. scutalis, a mortalidade foi de 60,61% e 64,48%, respectivamente, nas mesmas condições. A mortalidade de ácaros observada no HRD foi insignificante e houve um aumento insignificante na mortalidade no DRD. Oxamil sendo menos tóxico para ácaros predadores e significativamente mortal para ácaros fitófagos é recomendado como ferramenta para alcançar o controle biológico paralelo ao efeito pesticida.

Abstract Agriculture sector of Saudi Arabia is growing swiftly and tomato is an important crop cultivated mostly under green houses. Unfortunately, it is facing severe infestation due to divers mite species. Present study, relates to evaluation of toxicity of oxamyl against two phytophagous mites; Aculops lycopersici and Tetranychus urticae, isolated from tomato plants suffering from infestation. Simultaneous effect of oxamyl on two predatory mites; Neosiulus cucumeris and Euseius scutalis, was also evaluated. Three concentrations of oxamyl; half of the recommended dose (HRD), recommended dose (RD) and double recommended dose (DRD), were used against each mite specie to observe mortality within seven days as compared to the control. Significant mortality of 97.91% and 93.92% was observed in A. lycopersici and T. urticae, respectively at RD. In case of predatory mites; N. cucumeris and E. scutalis, mortality was 60.61% and 64.48%, respectively, under same conditions. Mortality of mites observed at HRD was insignificant and there was negligible increase in mortality at DRD. Oxamyl being less toxic to predatory mites and significantly mortal to phytophagous mites is recommended as a tool to as a tool to achieve biological control parallel to pesticidal effect.

Resumo Insetos galhadores são abundantes na natureza, encontrados em muitos ecossistemas globalmente, com espécies atacando plantas de importância econômica. Os efeitos de herbívoros de alimentação livre na abundância de insetos galhadores em árvores de Caryocar brasiliense (Caryocaraceae) no Cerrado brasileiro (Savana) foram estudados. A porcentagem de desfolha e o número de ácaros fitófagos ou de Hemiptera fitófagos correlacionaram-se, negativamente, com a percentagem de folhas galhadas e de adultos do parasitoide Eurytoma sp. (Hymenoptera: Eurytomidae), respectivamente. Porcentagem de folhas galhadas e o número de Eurytoma sp. adultos e ácaros fitófagos correlacionaram-se, positivamente, com o de aranhas. Os números de ácaros e fitófagos Hemiptera correlacionaram-se, positivamente, com os de joaninhas e Sycophila sp. (Hymenoptera: Eurytomidae), respectivamente. O número de adultos de Ablerus magistretti Blanchard (Hymenoptera: Aphelinidae) correlacionou-se, negativamente, com Sycophila sp. O número de Agistemus sp. (Acari: Stigmaeidae) correlacionou-se, negativa e positivamente, com os de joaninhas e ácaros fitófagos, respectivamente. Herbívoros de alimentação livre afetaram a presença de insetos galhadores (Hymenoptera) em árvores de C. brasiliense, competindo por alimento e espaço. O mesmo foi observado entre dois parasitoides de Eurytoma sp., o que pode reduzir o controle biológico natural dessa praga.

Abstract Galling insects are abundant in nature, found in many ecosystems globally, with species attacking plants of economic importance. We studied the effects of free-feeding organisms on the abundance of galling insects on Caryocar brasiliense (Caryocaraceae) trees in the Brazilian Cerrado (Savanna). Percentage of defoliation and the number of phytophagous mites or number of phytophagous Hemiptera correlated negatively with percentage of galled leaves and the parasitoid Eurytoma sp. (Hymenoptera: Eurytomidae) adults, respectively. Percentage of galled leaves and the numbers of Eurytoma sp. adults and phytophagous mites correlated positively with spiders. Numbers of mites and Hemiptera phytophagous correlated positively with those of lady beetles and Sycophila sp. (Hymenoptera: Eurytomidae), respectively. The number of Ablerus magistretti Blanchard (Hymenoptera: Aphelinidae) adults correlated negatively with Sycophila sp. The number of Agistemus sp. (Acari: Stigmaeidae) correlated, negatively and positively, with those of lady beetles and phytophagous mites, respectively. Free-feeding herbivores affected the presence of galling insects (Hymenoptera) on C. brasiliense trees, competing for food and space. The same was observed between two parasitoids of Eurytoma sp. galling insect, which can reduce the natural biological control of this pest.

Abstract Date palm trees, their cultivation and harvesting have become challenging due to infestations caused by some specific mites including Oligonychus afrasiaticus (McGregor) (Tetranychidae). Current research has been carried out to investigate the efficiency of nine pesticides against eggs and date palm mite, Oligonychus afrasiaticus against nine pesticides. Side effects of the nine pesticides were also examined on predatory mite, Amblyseius swirskii Athias-Henriot (Phytoseiidae). Mites and their eggs were treated with the recommended dosage of nine pesticides namely, Bifenazate 24%, Bifenthrin 10%, Matrine 0.6%, Imidacloprid 37% + Abamectin 3%, Sulphur 99.5%, Micronized Sulphur 80%, Mineral oil 95%, Pyrethrin 1.5% and Hexythiazox 10%, while they were present in their natural environment on the date palm trees in the experimental fields. Highest mortality of 91.16% was observed when O. afrasiaticus was treated with Bifenazate (24%) followed by 87.31%, 85.20%, 72.06%, 71.34%, 65.35%, 64.14%, 61.06% and 24.25% in case of Bifenthrin 10%, Matrine 0.6%, Imidacloprid 37% + Abamectin 3%, Sulphur 99.5%, Micronized Sulphur 80%, Mineral oil 95%, Pyrethrin 1.5%, and Hexythiazox 10%, respectively. A minimum hatching of 25.74% was observed when eggs of O. afrasiaticus were treated with Hexythiazox 10% and the highest success of hatching (99.07%) was seen when treatment was given with Imidacloprid 37% + Abamectin 3%. When same trials with same nine pesticides were performed on predatory mite; Amblyseius swirskii, the highest mortality in terms of percentage reduction (75.63%) was observed with Bifenthrin and the lowest (14.69%) with Matrine. Nine pesticides used in this study have distinct toxicity against targeted mite, their eggs and the predatory mite. A two steps control strategy is recommended for this treatment. First spray Hexythiazox at the egg laying stage and then at the moving stage of mites by using Matrine which is toxic to mites but negligibly toxic to predatory mites. Further studies are recommended to evaluate varied actions of the pesticide against eggs, phytophagous mites, and predatory mites. McGregor (McGregor Tetranychidae. Tetranychidae . (Tetranychidae) mite AthiasHenriot Athias Henriot Phytoseiidae. Phytoseiidae (Phytoseiidae) namely 24 24% 10 06 0 6 0.6% 37 3 3% 995 99 5 99.5% 80 80% 95 95% 15 1 1.5 fields 9116 91 16 91.16 O (24% 8731 87 31 87.31% 8520 85 20 85.20% 7206 72 72.06% 7134 71 34 71.34% 6535 65 35 65.35% 6414 64 14 64.14% 6106 61 61.06 2425 25 24.25 respectively 2574 74 25.74 99.07% 9907 07 (99.07% 75.63% 7563 75 63 (75.63% 14.69% 1469 69 (14.69% (Tetranychidae (Phytoseiidae 2 0.6 9 99.5 8 1. 911 91.1 (24 873 87.31 852 85.20 720 7 72.06 713 71.34 653 65.35 641 64.14 610 61.0 242 24.2 257 25.7 99.07 990 (99.07 75.63 756 (75.63 14.69 146 (14.69 0. 99. 91. (2 87.3 85.2 72.0 71.3 65.3 64.1 61. 24. 25. 99.0 (99.0 75.6 (75.6 14.6 (14.6 ( 87. 85. 72. 71. 65. 64. (99. 75. (75. 14. (14. (99 (75 (14 (9 (7 (1

Resumo As tamareiras, seu cultivo e colheita tornaram-se desafiadores devido às infestações causadas por alguns ácaros específicos, incluindo Oligonychus afrasiaticus (McGregor) (Tetranychidae). A pesquisa atual foi realizada para investigar a eficiência de nove pesticidas contra ovos e o ácaro da tamareira, Oligonychus afrasiaticus. Os efeitos colaterais dos nove pesticidas também foram examinados no ácaro predador, Amblyseius swirskii Athias-Henriot (Phytoseiidae). Os ácaros e seus ovos foram tratados com a dosagem recomendada de nove pesticidas, a saber: Bifenazato 24%, Bifentrina 10%, Matrina 0,6%, Imidacloprida 37% + Abamectina 3%, Enxofre 99,5%, Enxofre Micronizado 80%, Óleo Mineral 95%, Piretrina 1,5% e Hexitiazox 10%, enquanto estavam presentes em seu ambiente natural nas tamareiras nos campos experimentais. A maior mortalidade de 91,16% foi observada quando O. afrasiaticus foi tratado com Bifenazato (24%), seguido por 87,31%, 85,20%, 72,06%, 71,34%, 65,35%, 64,14%, 61,06% e 24,25% no caso de Bifentrina 10%, Matrina 0,6%, Imidacloprida 37% + Abamectina 3%, Enxofre 99,5%, Enxofre Micronizado 80%, Óleo Mineral 95%, Piretrina 1,5% e Hexitiazox 10%, respectivamente. Uma eclosão mínima de 25,74% foi observada quando os ovos de O. afrasiaticus foram tratados com Hexythiazox 10%, e o maior sucesso de eclosão (99,07%) foi visto quando o tratamento foi realizado com Imidacloprid 37% + Abamectina 3%. Quando os mesmos ensaios com os mesmos nove pesticidas foram realizados no ácaro predador, Amblyseius swirskii, a maior mortalidade em termos de redução percentual (75,63%) foi observada com Bifenthrin e a menor (14,69%) com Matrine. Nove pesticidas usados neste estudo têm toxicidade distinta contra o ácaro alvo, seus ovos e o ácaro predador. Uma estratégia de controle em duas etapas é recomendada para este tratamento. Primeiro pulverize Hexythiazox no estágio de postura de ovos e depois no estágio de movimentação dos ácaros usando Matrina, que é tóxico para os ácaros, mas insignificantemente tóxico para os ácaros predadores. Estudos adicionais são recomendados para avaliar as variadas ações do pesticida contra ovos, ácaros fitófagos e ácaros predadores. tornaramse tornaram se específicos McGregor (McGregor Tetranychidae. Tetranychidae . (Tetranychidae) tamareira predador AthiasHenriot Athias Henriot Phytoseiidae. Phytoseiidae (Phytoseiidae) saber 24 24% 10 10% 06 0 6 0,6% 37 3 3% 995 99 5 99,5% 80 80% 95 95% 15 1 1,5 experimentais 9116 91 16 91,16 O , (24%) 8731 87 31 87,31% 8520 85 20 85,20% 7206 72 72,06% 7134 71 34 71,34% 6535 65 35 65,35% 6414 64 14 64,14% 6106 61 61,06 2425 25 24,25 respectivamente 2574 74 25,74 99,07% 9907 07 (99,07% 75,63% 7563 75 63 (75,63% 14,69% 1469 69 (14,69% Matrine alvo predadores (Tetranychidae (Phytoseiidae 2 0,6 9 99,5 8 1, 911 91,1 (24% 873 87,31 852 85,20 720 7 72,06 713 71,34 653 65,35 641 64,14 610 61,0 242 24,2 257 25,7 99,07 990 (99,07 75,63 756 (75,63 14,69 146 (14,69 0, 99, 91, (24 87,3 85,2 72,0 71,3 65,3 64,1 61, 24, 25, 99,0 (99,0 75,6 (75,6 14,6 (14,6 (2 87, 85, 72, 71, 65, 64, (99, 75, (75, 14, (14, ( (99 (75 (14 (9 (7 (1

In recent years, there has been great interest in understanding the chemistry of natural products from different organisms and their role in ecological processes. Some species of frogs sequester and metabolize dietary alkaloids obtained primarily from mites and ants as chemical defense. Most of these studies have employed gas chromatography techniques coupled with mass spectrometry, which restricts the possibility of observing more polar metabolites. In the case of pumiliotoxin (+)-251D and allopumiliotoxin (+)-267A, the fragmentation mechanisms in electrospray ionization systems with collision-induced fragmentation are undescribed. The present study aims to elucidate the fragmentation pathways of these two toxins. For this purpose, we used direct infusion of toxins in a time-of-flight hyphenated quadrupole electrospray ionization tandem mass spectrometry (ESI-MS/MS) system. Different collision energies were applied, and the data rationalized from the concepts of reaction mechanisms. The joint analysis allowed to present a robust map of fragmentation opening perspectives for their application in studies of the occurrence of new polar analogues. years processes defense metabolites +251D 251D D + +267A, 267A A 267A, (+)-267A collisioninduced induced undescribed purpose timeofflight time flight ESIMS/MS ESIMSMS ESI MS/MS MS (ESI-MS/MS system applied analogues +267A ESIMS MSMS

ABSTRACT Symbiotic relationships are associations where two or more species live closely associated, including parasitism, phoresis, mutualism, and others. In mites, one of the most common associations occurs between larvae of Leptus (Erythraeidae), a cosmopolitan genus that parasitizes several groups of arthropods. However, in Brazil, these reports are scarce. In the present study, we recorded the number of ectoparasitic erythraeid mite larvae of the genus Leptus found associated to Opiliones of the species Gonyleptes fragilis Mello-Leitão, 1923 (Gonyleptidae) in an Atlantic Forest fragment (Cubatão, São Paulo, Brazil), collected over one year, between the four seasons. We recorded 405 mite larvae associated with 152 opilionid individuals. The intensity and prevalence of mite’s infection, seasonal variation, mite’s preference for body parts and host sex were the parameters used to determine host-parasite relationship. Mean infestation intensity (number of mites per individual) ranged from 0.3 to 11.3 with maximum observed intensity of 20 mites/individual. There was no sexual host preference and regarding seasonality, there were differences between infestation intensity and season with infestation being higher in summer compared to the other seasons. As for location, most mites were found in the median region of the dorsal shield, near the median frame of area III and IV. This study provides the first description of annual and seasonal variation in mite infestation on Opiliones in the Brazilian Atlantic Forest. parasitism phoresis mutualism others Erythraeidae, Erythraeidae , (Erythraeidae) arthropods However Brazil scarce MelloLeitão, MelloLeitão Mello Leitão, Leitão Mello-Leitão 192 Gonyleptidae (Gonyleptidae Cubatão, Cubatão (Cubatão Paulo Brazil) year seasons 40 15 individuals s infection hostparasite parasite relationship individual 03 0 3 0. 113 11 11. 2 mitesindividual mites/individual seasonality location shield IV (Erythraeidae 19 4 1

RESUMO Relações simbióticas são associações onde duas ou mais espécies vivem intimamente associadas, incluindo parasitismo, forese, mutualismo e outros. Em ácaros, uma das associações mais comuns ocorre entre larvas de Leptus (Erythraeidae), gênero cosmopolita que parasita diversos grupos de artrópodes. No entanto, no Brasil, esses relatos são escassos. No presente estudo, registramos o número de larvas ectoparasitas de ácaros eritreídeos do gênero Leptus encontradas associadas a opiliões da espécie Gonyleptes fragilis Mello-Leitão, 1923 (Gonyleptidae) em um fragmento de Mata Atlântica (Cubatão, São Paulo, Brasil), coletadas ao longo de um ano, entre as quatro estações. Registramos 405 larvas de ácaros associadas a 152 indivíduos de opiliões. A intensidade e prevalência da infecção do ácaro, variação sazonal, preferência do ácaro por partes do corpo e sexo do hospedeiro foram os parâmetros usados para determinar a relação parasita-hospedeiro. A intensidade média de infestação (número de ácaros por indivíduo) variou de 0,3 a 11,3 com intensidade máxima observada de 20 ácaros/indivíduo. Não houve preferência sexual do hospedeiro e quanto à sazonalidade, houve diferenças entre intensidade de infestação e estação do ano, sendo a infestação maior no verão em relação às outras estações. Quanto à localização, a maioria dos ácaros foi encontrada na região mediana do escudo dorsal, próximo à região mediana das áreas III e IV. Este estudo fornece a primeira descrição da variação anual e sazonal na infestação de ácaros em opiliões na Mata Atlântica brasileira. parasitismo forese outros Erythraeidae, Erythraeidae , (Erythraeidae) artrópodes entanto Brasil escassos MelloLeitão, MelloLeitão Mello Leitão, Leitão Mello-Leitão 192 Gonyleptidae (Gonyleptidae Cubatão, Cubatão (Cubatão Paulo Brasil) ano estações 40 15 parasitahospedeiro. parasitahospedeiro hospedeiro. parasita-hospedeiro indivíduo 03 0 3 0, 113 11 11, 2 ácarosindivíduo ácaros/indivíduo sazonalidade localização dorsal IV brasileira (Erythraeidae 19 4 1

Abstract The aim of this study was to recognize the mite fauna associated with apple orchards in southern Brazil and present a dichotomous key of the species sampled and those already reported in apple trees in southern Brazil. The studies were carried out in the 2020/2021 harvest in seven apple orchards of the Eva, Fuji and Gala cultivars located in the municipalities of Muitos Capões, Antônio Prado (Rio Grande do Sul state) and São Joaquim (Santa Catarina state). The orchards were divided into quadrants and sampling was carried out monthly. In each orchard, 40 plants were sampled, with three leaves of each plant collected in apical, median and basal regions of a median branch. In addition, monthly five species of spontaneous plants per orchard were sampled. A total of 8,425 mites were found, with the greatest abundance in Antônio Prado (50%), followed by Muitos Capões (35.5%) and São Joaquim (14.5%). The specimens found belong to 29 families, 64 genera and 99 species, in addition to mites of the order Oribatida. The greatest diversity was found in spontaneous vegetation (59 species), being 19 exclusives to apple trees and 21 species common to apple trees and spontaneous vegetation. Phytoseiidae was the family that presented the greatest richness, with 16 species, of which seven were common in apple trees and spontaneous plants. The most abundant species was Aculus schlechtendali Nalepa (Eriophyidae) (39.5%), followed by Panonychus ulmi (Koch) (Tetranychidae) (14.6%), Polyphagotarsonemus latus (Banks) (Tarsonemidae) (9.4%) and Neoseiulus californicus (McGregor) (Phytoseiidae) (7.4%). These results suggest that the mite fauna present in apple orchards in different landscapes and management are distinct, with a greater diversity of phytoseiid mites present in organic areas. Therefore, to maintain a greater diversity of predatory mites in these orchards, organic management seems to be the most appropriate. Furthermore, the high acarine diversity found in spontaneous vegetation demonstrates the importance of maintaining these plants in orchards that serve as refuges and reservoirs, favoring the permanence of natural enemies in these environments. 20202021 2020 2021 2020/202 Eva Rio state Santa state. . 4 apical branch 8425 8 425 8,42 50%, 50 50% , (50%) 35.5% 355 35 5 (35.5% 14.5%. 145 14.5% 14 (14.5%) 2 families 6 9 Oribatida 59 (5 species) 1 richness Eriophyidae (Eriophyidae 39.5%, 395 39.5% 39 (39.5%) Koch (Koch Tetranychidae (Tetranychidae 14.6%, 146 14.6% (14.6%) Banks (Banks Tarsonemidae (Tarsonemidae 9.4% 94 (9.4% McGregor (McGregor (Phytoseiidae 7.4%. 74 7.4% 7 (7.4%) distinct areas Therefore appropriate Furthermore reservoirs environments 2020202 202 2020/20 842 42 8,4 (50% 35.5 3 (35.5 14.5 (14.5% ( 39.5 (39.5% 14.6 (14.6% 9.4 (9.4 7.4 (7.4% 202020 20 2020/2 84 8, (50 35. (35. 14. (14.5 39. (39.5 (14.6 9. (9. 7. (7.4 20202 2020/ (35 (14. (39. (9 (7. (3 (14 (39 (7 (1

Resumo O objetivo deste estudo foi reconhecer a acarofauna associada a pomares de macieira no sul do Brasil e apresentar uma chave dicotômica das espécies amostradas e daquelas já relatadas em macieiras no sul do Brasil. Os estudos foram realizados na safra 2020/2021 em sete pomares de macieiras das cultivares Eva, Fuji e Gala localizados nos municípios de Muitos Capões, Antônio Prado (RS) e São Joaquim (SC). Os pomares foram divididos em quadrantes e a amostragem foi realizada mensalmente. Em cada pomar foram amostradas 40 plantas, sendo três folhas de cada planta coletadas nas regiões apical, mediana e basal de um ramo mediano. Além disso, mensalmente foram amostradas cinco espécies de vegetação espontânea por pomar. Foram encontrados 8.425 ácaros, com maior abundância em Antônio Prado (50%), seguido por Muitos Capões (35,5%) e São Joaquim (14,5%). Os exemplares encontrados pertencem a 29 famílias, 64 gêneros e 99 espécies, além de ácaros da ordem Oribatida. A maior abundância foi encontrada em vegetação espontânea (59 espécies), sendo 19 exclusivas de macieiras e 21 espécies comuns a macieiras e vegetação espontânea. Phytoseiidae foi a família que apresentou maior riqueza, com 16 espécies, das quais sete eram comuns em macieiras e vegetação espontânea. A espécie mais abundante foi Aculus schlechtendali Nalepa (Eriophyidae) (39,5%), seguida por Panonychus ulmi (Koch) (Tetranychidae) (14,6%), Polyphagotarsonemus latus (Banks) (Tarsonemidae) (9,4%) e Neoseiulus californicus (McGregor) (Phytoseiidae) (7,4%). Esses resultados sugerem que a acarofauna presente em pomares de macieira em diferentes paisagens e manejos são distintas, com maior diversidade de ácaros fitoseídeos presentes em áreas orgânicas. Portanto, para manter uma maior diversidade de ácaros predadores nesses pomares, o manejo orgânico parece ser o mais adequado. Além disso, a elevada diversidade de ácaros encontrada na vegetação espontânea demonstra a importância da manutenção destas plantas em pomares que servem como refúgios e reservatórios, favorecendo a permanência de inimigos naturais nestes ambientes. 20202021 2020 2021 2020/202 Eva RS (RS SC. SC . (SC) 4 apical mediano disso 8425 8 425 8.42 50%, 50 50% , (50%) 35,5% 355 35 5 (35,5% 14,5%. 145 14,5% 14 (14,5%) 2 famílias 6 9 Oribatida 59 (5 espécies) 1 riqueza Eriophyidae (Eriophyidae 39,5%, 395 39,5% 39 (39,5%) Koch (Koch Tetranychidae (Tetranychidae 14,6%, 146 14,6% (14,6%) Banks (Banks Tarsonemidae (Tarsonemidae 9,4% 94 (9,4% McGregor (McGregor (Phytoseiidae 7,4%. 74 7,4% 7 (7,4%) distintas orgânicas Portanto adequado reservatórios ambientes 2020202 202 2020/20 (SC 842 42 8.4 (50% 35,5 3 (35,5 14,5 (14,5% ( 39,5 (39,5% 14,6 (14,6% 9,4 (9,4 7,4 (7,4% 202020 20 2020/2 84 8. (50 35, (35, 14, (14,5 39, (39,5 (14,6 9, (9, 7, (7,4 20202 2020/ (35 (14, (39, (9 (7, (3 (14 (39 (7 (1

Abstract Objectives The aim of this study was to explore the differences in the pattern of allergen sensitization in CR individuals without or with asthma, according to asthma severity. Methods A total of 1066 adults were evaluated. Asthma and chronic⁄allergic rhinits were identified by specialists, questionnaries and skin-prick test. The phenotypic characterization was avaliable from skin-prick test to an aeroallergen extended panel, total IgE and pulmonary function. Using questionnaires and clinical evaluation, participants were classified into the groups: chronic rhinitis alone (CRA) and chronic rhinitis + asthma, the latter subdivided into CR + mild asthma (CRMA) and CR + moderate to severe asthma (CRMSA). Aerollergen sensitization was defined by a positive prick test to one or more allergens associated with nasal symptoms and/or asthma. The association between CR and asthma was evaluated by multivariable logistic regression. The evidence of effect modification of pattern of sensitization in CR on the association with asthma severity and outcomes was examined by introducing interactions terms in the logistic regression models adjusting for confounders. Results Frequency of sensitization to aeroallergens was higher in association with asthma in comparison to CRA (CRMA 70.4%; CRMSA 65.0%; CRA 47.0%; p= 0.000). Similarly, the presence of asthma was associated to aeroallergen multiple sensitization (51.5%) (OR = 2.10, 95% CI 1.27-3.50). Additionally, the sensitization to mites, cockroaches, animal epithelium, grasses, and molds, were higher in asthma (56.8%, 24.3%, 12%, 7.13% and 10.3%, respectively). Sensitization to Alternaria alternata, Cladosporium herbarum and dog epithelium was exclusive in asthma groups. A concomitant asthma diagnosis was directly associated with a positive allergen sensitization at least one allergen (62.7%, OR = 2.45, 95% CI 1.80-3.34) and polissensitization (51.5%, OR = 2.10, 95% CI 1.27-3.50). Conclusion Asthma is associated with multiple allergen sensitization among patients with CR. Some unique profiles of aeroallergen sensitization were observed in patients with CR and asthma. Nevertheless, no difference was found in the sensitization in relation to asthma severity, which suggest atopy is not the main underlying mechanism for asthma severity among patients with CR. Level of evidence: Level 3. 106 chronicallergic allergic specialists skinprick skin panel function evaluation groups (CRA CRMA CRMSA. . (CRMSA) andor confounders 70.4% 704 70 4 65.0% 650 65 0 47.0% 470 47 p 0.000. 0000 0.000 000 0.000) Similarly 51.5% 515 51 5 (51.5% 210 2 10 2.10 95 1.273.50. 127350 1.27 3.50 1 27 3 50 1.27-3.50) Additionally mites cockroaches grasses molds 56.8%, 568 56 8 (56.8% 243 24 24.3% 12 12% 713 7 13 7.13 103 10.3% respectively. respectively respectively) alternata 62.7%, 627 62 (62.7% 245 45 2.45 1.803.34 180334 1.80 3.34 80 34 1.80-3.34 51.5%, Nevertheless (CRMSA 70.4 65.0 6 47.0 0.00 00 51.5 (51.5 21 2.1 9 273 1.273.50 12735 127 1.2 350 3.5 1.27-3.50 56.8% (56.8 24.3 71 7.1 10.3 62.7% (62.7 2.4 803 1.803.3 18033 180 1.8 334 3.3 1.80-3.3 70. 65. 47. 0.0 51. (51. 2. 1.273.5 1273 1. 35 1.27-3.5 56.8 (56. 24. 7. 10. 62.7 (62. 1.803. 1803 18 33 1.80-3. 0. (51 1.273. 1.27-3. 56. (56 62. (62 1.803 1.80-3 (5 1.273 1.27-3 (6 1.80- ( 1.27-

ABSTRACT The coconut mite (Aceria guerreronis - Eriophyidae) attacks coconut fruits, inhabits the meristematic region, and causes losses in fruit production. Chemicals are the main control measures but successive applications can cause resistance in mites. In this sense, it is necessary to search for ecological alternatives that assist in sustainable management, as consumers seek products grown using more eco-friendly techniques. This study aimed to identify an entomopathogenic fungal isolate and evaluate its ability to control the mite A. guerreronis, which is present in commercial areas in the municipality of Santa Izabel do Pará, Brazil, in the Eastern Amazon. The efficiency of fungi on mites was tested using six treatments: water (control), chemical acaricide, and fungi of the genera Purpureocillium, Metarhizium, Beuaveria, and Trichoderma; the treatments were applied to the bunches at a concentration of 108 conidia mL-1. The results demonstrated a reduction in mites on fruits, with the B. bassiana and P. lilacinum treatments being the most successful. This study demonstrates that these fungi have acaricidal action and may present an economically viable and ecological alternative for controlling phytophagous mites in coconut cultivation in the Amazon. Aceria Eriophyidae fruits region production sense management ecofriendly eco friendly techniques A Pará Brazil Amazon control, , (control) acaricide Purpureocillium Metarhizium Beuaveria Trichoderma 10 mL1. mL1 mL 1. 1 mL-1 B P successful (control mL-

RESUMO O ácaro do coco (Aceria guerreronis - Eriophyidae) ataca os frutos do coqueiro, habita a região meristemática e causa perdas na produção de frutos. A principal medida de controle é por meio de produtos químicos. Sucessivas aplicações podem causar a resistencia dos ácaros, neste sentido, faz-se necessária a busca por alternativas ecológicas que auxiliem em um manejo sustentável, pois consumidores procuram produtos oriundos de técnicas mais saudáveis. O objetivo deste estudo foi identificar um isolado fúngico entomopatogênico e avaliar o controle sobre o ácaro A. guerreronis, presente em áreas comerciais no município de Santa Izabel do Pará, Brasil, Amazônia Oriental. A eficiência dos fungos sobre os ácaros, foi testada através de seis tratamentos: água (controle), acaricida químico e fungos dos gêneros Purpureocillium, Metarhizium, Beuaveria e Trichoderma, na concentração de 108 conídios mL-1, e aplicados sobre os cachos. Os resultados demonstraram que houve redução de ácaros nos frutos, sendo os tratamentos à base de B. bassiana e P. lilacinum, os mais eficientes, demonstrando que esses fungos possuem ação acaricida e podem ser uma alternativa economicamente viável e ecológica para o controle de ácaros fitófagos no cultivo de coqueiro na Amazônia. Aceria Eriophyidae químicos sentido fazse faz se sustentável saudáveis Pará Brasil Oriental controle, , (controle) Purpureocillium Metarhizium Trichoderma 10 mL1, mL1 mL 1, 1 mL-1 cachos B P lilacinum eficientes (controle mL-