Abstract The ground beetle, Neoaulacoryssus speciosus (Coleoptera: Carabidae) is of high relevance to field because it has been recorded as a pest of seeds and young plants of vegetables and other crops and a predator in agricultural crops, forest and weeds in Brazil. However, natural habitat changes are increasing agriculture and forest insect outbreaks in urban areas. A N. speciosus population outbreak occurred in October and November 2018 simultaneously in 12 neighboring municipalities at the beginning of the rainy season in the northern region of Minas Gerais State, Brazil. The objectives of this study were to report a sudden and simultaneous population outbreak of N. speciosus and to describe the factors of habitat change that could have contributed to this invasion in 12 municipalities in the northern region of Minas Gerais State in the Caatinga biome of Brazil. In addition, female and male genitals were described and illustrated, the scientific classification revised and common names of N. speciosus listed. Thousands of males and females of N. speciosus agglomerated in shady, humid places during the day and night for about 15 days. Neoaulacoryssus speciosus has been identified and illustrated, its scientific classification revised and four common names listed for this species.

Abstract The corn cropping system can influence the natural enemy identity and the number of Spodoptera frugiperda J.E. Smith, 1797 (Lepidoptera: Noctuidae) individuals infesting the cartridge, ear and stem of this plant. The objectives were to identify the S. frugiperda natural enemies and differences in the number of individuals infesting the cartridge, ear and stem of corn plants under conventional and organic cropping systems, in Brazil after an initial collection of adult males through semiochemical traps. We also evaluated key morphometrical parameters of the larva and factors contributing with the viability of S. frugiperda. A total of 16 and 136 adult males was trapped, and 1,124 and 1,112 larvae was recovered from conventional and organic systems with 4.7 and 6.7% of them parasitized by dipteran and hymenopteran, respectively. Most of the parasitoids recovered had occurrence in both cropping systems, except Cremastinae and Ophion flavidus Brullé, 1846 (Hymenoptera: Ichneumonidae), which were recorded only in organic and Campoletis sp. (Hymenoptera: Ichneumonidae) only in conventional corns. The number of parasitoids recovered was similar in corn plant samples between both cropping systems. A total of 152 and 31 larvae was recovered from corn ears under conventional and organic systems, respectively. Doru luteipes (Scudder, 1876) (Dermaptera: Forficulidae) was recovered from all samples under conventional system. The larva length was overall similar between cropping systems. Parasitism by dipteran and hymenopteran, infection by microorganisms, larva mortality by undetermined causes, and differences in viability of S. frugiperda stages were factors contributing with the supression of this pest. The new associations and parasitoids reported represent possibilities of expanding the biological control strategies to manage S. frugiperda in corn crops.

RESUMO Espécies de Thysanoptera podem transmitir vírus para vegetais da família Solanaceae, incluindo plantas de tomate para processamento industrial, causando a doença vira-cabeça do tomateiro (TSWV). A resistência dos tripes a inseticidas indica a necessidade urgente de técnicas adequadas às práticas de Manejo Integrado de Pragas. O objetivo foi avaliar a eficiência de controle (CE%) de Frankliniella schultzei (Thysanoptera: Thripidae) com o fungo Beauveria bassiana (Bb), o indutor de resistência silicato de potássio (KSil) e o inseticida químico profenofós + cipermetrina (PC) isolados, ou em misturas binárias. Os tratamentos foram aplicados via foliar nas plantas de tomate com Bb (T1), KSil (T2) e PC (T3) isolados ou em misturas binárias Bb+KSil (T4), PC+KSil (T5) e Bb+PC (T6). Os tripes foram amostrados com bandejas plásticas aos 0, 1, 7, 14 e 21 dias após a aplicação (daa). A CE% de cada produto (isolado ou em misturas) diferiu em todos os intervalos de tempo. O tratamento Bb+KSil teve alta CE% desde as primeiras 24 horas da aplicação até o final do período experimental, variando entre 95% (1 daa) a 41,5% (21 daa). A CE% diminuiu em todos os tratamentos com um comportamento quadrático ao longo do tempo. O inseticida PC, isolado, apresentou uma diminuição para a CE% através de uma regressão linear. Análises de agrupamento indicaram que o efeito do Bb+KSil foi mais heterogêneo do que o dos outros tratamentos avaliados. O sinergismo entre Bb e KSil, em mistura, indica seu potencial em programas de Manejo Integrado de Pragas de F. schultzei em plantas de tomate para processamento industrial.

ABSTRACT Thysanoptera species can transmit virus to Solanaceae family vegetables, including tomato plants for industrial processing, causing the disease known as Tomato Spotted Wilt Virus (TSWV). Thrips resistance to insecticides indicate the urgent need of techniques adequate for Integrate Pest Management practices. The objective was to evaluate the control efficiency (CE%) against Frankliniella schultzei (Thysanoptera: Thripidae) of the fungus Beauveria bassiana (Bb), the resistance inducer potassium silicate (KSil) and the chemical insecticide profenophos + cypermethrin (PC) isolated, or in binary mixtures. The treatments were foliar spraying on tomato plants with Bb (T1), KSil (T2) and PC (T3) isolated or in mixtures of Bb+KSil (T4), PC+KSil (T5) and Bb+PC (T6). Thrips were sampled with white plastic trays at 0, 1, 7, 14 and 21 days after application (daa). The CE% of each product (isolated or in mixtures) differed at all time intervals. The Bb+KSil treatment had highest CE% from 24 hours of application, until the end of the experiment, ranging from 95% (1 daa) to 41.5% (21 daa). The CE% decreased in all treatments with a quadratic curve behavior, throughout time. PC insecticide, isolated, showed a decreased CE% through a linear regression. Grouping analyzes indicated the Bb+KSil effect was more dissimilar than the other evaluated treatments. Synergism between Bb and KSil, in mixture, indicate its potential for Integrated Pest Management programs of F. schultzei in tomato plants for industrial processing.