Se evaluó la eficiencia de varios extractos vegetales como controladores de la garrapata Rhipicephalus (Boophilus) microplus en condiciones de laboratorio. Hembras ingurgitadas se recolectaron de bovinos y se aislaron en cajas de petri. Se emplearon extractos orgánicos alcohólicos al 1% (p/v) de semillas de Annona muricata (Annonaceae), flores de Syzygium malaccensis (Myrtaceae), hojas de Cymbopogon citratus (Poaceae), hojas de Azadirachta indica (Meliaceae) y extracto hexánico de semillas de A. indica. El testigo consistió en hembras sin tratar y tratadas con agua destilada y esterilizada y dimetilsulfóxido (DMSO) a una concentración de 1%. El extracto de semillas de A. muricata mostró tener mayor poder acaricida, con 100% de eficiencia, seguido de los extractos de flores de S. malaccensis (75% y 57,25%) y semillas de A. indica (65% y 38,50%). Hubo 100% en la reducción de la eclosión de las larvas nacidas a partir de hembras tratadas con extracto de semillas de A. muricata.

The efficacy of various plant extracts in the control of Rhipicephalus (Boophilus) microplus was evaluated in the laboratory. Engorged females were collected from cattle and were isolated in Petri dishes. Organic alcoholic extracts at 1% (weight/volume) were used from seeds of Annona muricata (Annonaceae), flowers of Syzygium malaccensis (Myrtaceae), leaves of Cymbopogon citratus (Poaceae), leaves of Azadirachta indica (Meliaceae) and hexane extract 1% (weight/volume) of A. indica seeds. The control groups consisted of females either untreated or treated with distilled and sterile water and dimethylsulfoxide (DMSO) at a concentration of 1%. The extract of A. muricata seeds showed the highest acaricide power, with 100% efficacy, followed by flower extracts of S. malaccensis (75% and 57.25%) and seeds of A. indica (65% and 38.50%). There was a 100% reduction in the eclosion of larvae from eggs of females treated with the seed extract of A. muricata.

Um experimento de campo foi realizado em Maceió, Estado de Alagoas, Brasil, para avaliar os controles químico e mecânico de Cerconota anonella (Sepp.) (Lepidoptera: Oecophoridae) e de Bephratelloides pomorum (Fab.) (Hymenoptera: Eurytomidae), as pragas-chave da gravioleira, Annona muricata L. O delineamento experimental utilizado foi o inteiramente casualizado, com 9 tratamentos e 20 repetições. Foram avaliadas as seguintes variáveis nos frutos: números de orifícios causados pelas pragas, peso, comprimento e diâmetro. Em cada tratamento, observaram-se a percentagem de frutos colhidos e os custos unitários. Os melhores resultados foram obtidos com o saco plástico comum e com o saco plástico perfurado.

A field experiment was carried out in Maceió, State of Alagoas, Brazil to evaluate the controls chemical and mechanical of Cerconota anonella (Sepp.) (Lep.: Oecophoridae) and Bephratelloides pomorum (Fab.) (Hym.: Eurytomidae), the most important pests of soursop, Annona muricata L. Nine treatments were tested with twenty replications in a completely randomized design. The variables analyzed at the fruit were: hole caused by insects, weight, length, diameter and cost price. Also were evaluated the fruits cropped percentage. The best results were obtained using plastic bags and perforated plastic bags.