Neotropical Entomology (2009) 38, 395-404

Alexandre P. Moura, Geraldo A. Carvalho, Valéria F. Moscardini, Márcio C. Marques and Jander R. Souza (2009)
Toxicidade de pesticidas recomendados na produção integrada de maçã (PIM) a populações de Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae)
[Toxicity of pesticides recommended in the integrated apple production (IAP) to populations of Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae)]
Neotropical Entomology 38 (3), 395-404
Abstract: The goal of this work was to evaluate the effects of the pesticides abamectin, carbaryl, fenitrothion, methidathion, sulphur and trichlorfon on eggs of two Chrysoperla externa (Hagen) populations, as well as on the subsequent developmental stages and reproduction capacity of this green lacewing. Pesticide exposure and distilled water (control) were accomplished using a Potter's tower. None of the evaluated pesticides affected the egg viability of the C. externa populations studied, but abamectin and carbaryl caused significant mortality of other developmental stages of the predator. Sex ratio and reproduction capacity of females originated from treated eggs were unaffected. However, egg viability of C. externa from Bento Gonçalves, RS, Brazil, was reduced by sulphur. Considering to the total effect (E) of each pesticide, trichlorfon, fenitrothion, methidathion and abamectin were harmless to both C. externa populations (Bento Gonçalves and Vacaria), when applied on eggs, whereas carbaryl was slightly harmful. On the other hand, the fungicide sulphur was slightly harmful to C. externa from Bento Gonçalves, but harmless to those from Vacaria.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Alexandre Pinho Moura, Geraldo Andrade Carvalho

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Chrysoperla externa (predator)			Brazil (south)