Effect of anonaceous extracts on Aphis gossypii (Glover, 1887) (Hemiptera: Aphididae) and selectivity to Eriopis connexa (Germar, 1824) (Coleoptera: Coccinellidae)

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dc.creatorLindinalva dos Santos
dc.creatorRoseane Cristina Prédes Trindade
dc.creatorDjison Silvestre dos Santos
dc.creatorMirandy dos Santos Dias
dc.creatorSônia Maria Forti Broglio
dc.creatorEurico Eduardo Pinto de Lemos
dc.date2018
dc.date.accessioned2026-07-07T03:55:01Z
dc.descriptionThe effects of ethanolic and hexanic extracts of soursop and sugar apple (EES, EHS, EESA and EHSA, respectively) on Aphis gossypii (Hemiptera: Aphididae) and its natural enemy Eriopis connexa (Coleoptera: Coccinellidae) by contact exposure, residual effect and ingestion tests were evaluated. The estimated LC50 and LC99 values for A. gossypii were 0.39% and 5.47% for (EESA); 0.23% and 1.19% for (EES); 0.47% and 4.39% for (EHSA); and 0.42% and 6.38% for (EHS), respectively. Considering contact exposure, EES at 0.23% was innocuous, and EHS at 0.42% was slightly harmful; for adult ladybugs, only EESA (5.47%) was classified as slightly harmful, with the other treatments classified as harmless. The results were similar for the residual effect. For selectivity in ingestion tests, EES and EHS at the LC50 did not affect the survival rate of the predator, but EESA (0.39% and 5.47% for the LC50 and LC99, respectively) reduced the survival rate to zero in less than 7 days, resembling chemical treatment with Decis®. Extracts applied to the eggs of an alternative prey reduced the consumption of eggs and therefore the predatory capacity of the ladybug, which led to a decrease in oviposition, egg viability and ultimately a reduction in predator fecundity. EES at a concentration of 0.23% was effective in the control of A. gossypii and was selective and did not affect the survival rate of the its natural enemy E. connexa.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303058204053
dc.identifierhttps://www.redalyc.org/journal/3030/303058204053/
dc.identifierhttps://www.redalyc.org/journal/3030/303058204053/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303058204053/303058204053.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303058204053/movil
dc.identifier10.4025/actasciagron.v40i1.36267
dc.identifier.urihttp://hdl.handle.net/123456789/447296
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.40
dc.subjectAgrociencias
dc.titleEffect of anonaceous extracts on Aphis gossypii (Glover, 1887) (Hemiptera: Aphididae) and selectivity to Eriopis connexa (Germar, 1824) (Coleoptera: Coccinellidae)
dc.typeartículo científico

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