Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/37783
Título: Seletividade de inseticidas utilizados no algodoeiro sobre pupas e adultos da joaninha cycloneda sanguinea (Linnaeus, 1763)
Título(s) alternativo(s): Selectivity of insecticides used in the cotton crop in regard to pupae and adults of the ladybird beetle cycloneda sanguinea (Linnaeus, 1763)
Palavras-chave: Coccinellidae
Predador
Pesticida
Predator
Pesticide
Data do documento: 2011
Editor: Instituto Biológico
Citação: PEDROSO, E. C. et al. Seletividade de inseticidas utilizados no algodoeiro sobre pupas e adultos da joaninha cycloneda sanguinea (Linnaeus, 1763). Arquivos do Instituto Biológico, São Paulo, v. 78, n. 4, p. 573-544, out./dez. 2011.
Resumo: Identifying pesticides that are selective in regard to natural enemies is critical to good practice of integrated pest management. This study was aimed to evaluate the selectivity of the following pesticides (in g a.i. L-1 of water) in regard to the predator Cycloneda sanguinea (Linnaeus, 1763) (Coleoptera: Coccinellidae): triflumuron (Certero SC 480 – 0.048), spinosad (Tracer 480 SC – 0.24), chlorfenapyr (Pirate SC 240 – 1.2), clothianidin (Focus 500 PM – 0.33), beta-cyfluthrin + imidacloprid (Connect 100/12, SC 5 – 0.33 / 0.042), and distilled water as a control treatment. The products were sprayed on C. sanguinea pupae and adults using a Potter’s tower; the pupas were kept singly until they became adults, when couples were made. For adults, the couples were made after the application of the products. The bioassays were realized at 25 ± 2º C, RU 60 ± 10% and photophase of 12h. Evaluations were made of the duration, survival and sexual rate of directly treated pupae; survival and reproductive parameters of directly treated adults; survival and duration of the larval and pupal development stages, sexual ratio and reproductive parameters of adults developed from pupae and of directly treated adults. Triflumuron and spinosad were innocuous to the C. sanguinea pupae, and slightly prejudicial to the adults of the predator as well to its phases and generations following development. Chlorfenapyr, chlothianidin and imidacloprid/ß-cyfluthrin were toxic to C. sanguinea pupae and adults.
URI: http://repositorio.ufla.br/jspui/handle/1/37783
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