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Preferencia alimentaria del depredador eriopis connoxa connexa (germar) (coleoptera: coccinellidae)

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Abstract:

Under laboratory conditions the feeding preference of the coccinellid predator Eriopis connexa connexa, a promissory candidate for biocontrol within diverse coid and medium climatic agroecosystems was tested. Likewise it was intended to determine its searching capacity in terms of time required to find and consume the prey. The prey species evaluated for the IV instar larvae were the aphids Myzus persicae (Sulzer), Toxoptera aurantii (Boyer de Fonscolombe) and Rhopalosipum maidis (Fitch), and eggs of the lepidopteran pest Teda solaniuora (Povolny). Only a slight tendency of the IV instar larvae of the predator to prefer M. persicae over T. aurantii was detected, equally to prefer nymphs of T. aurantii over T. solaniuora eggs. Adults did not show preference for any of the aphids offered as prey. IV instar larvae always consumed the first prey species touched, while both sexes of the adults consumed the first prey touched only in 50% of the cases. Being the predator a generalist confers comparative advantages for its mass rearing and its use as biologica! control agent in diverse agroecosystems.

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Insect-Plant Interactions and Control

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Información de la Fuente:

SCImago Journal & Country Rank
FuenteRevista U.D.C.A Actualidad & Divulgación Científica
Cuartil año de publicaciónNo disponible
Volumen9
Issue1
Páginas163 - 171
pISSN0123-4226
ISSNNo disponible

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