1997
DOI: 10.1590/s0301-80591997000300012
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Resposta funcional de Scymnus (Pullus) argentinicus (Weise) (Coleoptera: Coccinellidae) a diferentes densidades do pulgão verde Schizaphis graminum (Rond. ) (Homoptera: Aphididae)

Abstract: Avaliou-se a resposta funcional, o tempo de busca e de manuseio da presa pelo predador Scymnus (Pullus) argentinicus(Weise). Como alimento foram oferecidas ninfas de 3º e 4º ínstares do pulgão verde Schizaphis graminum (Rond.). O delineamento experimental foi o inteiramente casualizado, em esquema fatorial 3 x 5, em três densidades (10, 25 e 35) de ninfas do pulgão e quatro ínstares larvais e adulto do predador, em 10 repetições. Os insetos foram mantidos a 25 ± 1ºC, 70 ± 10% UR e fotofase de 14 horas. Tanto p… Show more

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Cited by 5 publications
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“…The study of the different types of functional response is important in understanding the underlining mechanisms in predator-prey interaction, in elucidating the practical role of coevolutionary relationships, and in contributing towards biological control using this kind of interaction (Houck & Strauss, 1985). In this context, many experiments about predaceous insects in agricultural systems have evaluated diverse aspects of the functional response: Veeravel & Baskaran (1997) and Vieira et al (1997) with coccinelids; Heimpel & Hough-Goldstein (1994), Saini et al (1997), and O' Neil (1997) with pentatomids; and Fonseca et al (2000) with neuropters.…”
Section: Introductionmentioning
confidence: 99%
“…The study of the different types of functional response is important in understanding the underlining mechanisms in predator-prey interaction, in elucidating the practical role of coevolutionary relationships, and in contributing towards biological control using this kind of interaction (Houck & Strauss, 1985). In this context, many experiments about predaceous insects in agricultural systems have evaluated diverse aspects of the functional response: Veeravel & Baskaran (1997) and Vieira et al (1997) with coccinelids; Heimpel & Hough-Goldstein (1994), Saini et al (1997), and O' Neil (1997) with pentatomids; and Fonseca et al (2000) with neuropters.…”
Section: Introductionmentioning
confidence: 99%