Journal of Applied Entomology - Zeitschrift für angewandte Entomologie (2002) 126, 8-13

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M. Haseeb and H. Amano (2002)
Effects of contact, oral and persistent toxicity of selected pesticides on Cotesia plutellae (Hym., Braconidae), a potential parasitoid of Plutella xylostella (Lep., Plutellidae)
Journal of Applied Entomology - Zeitschrift für angewandte Entomologie 126 (1), 8-13
Abstract: Cotesia plutellae (Kurd.) is an important larval parasitoid of Plutella xylostella (L.). Effects of contact, oral and persistent toxicity of field doses of selected pesticides on immature and mature stages of this useful wasp were determined in controlled conditions. Contact toxicity tests showed that cartap 75% SG, chlorfenapyr 10% F, emamectin benzoate 1% EC, permethrin 20% EC, chlorfluazuron 5% EC, flufenoxuron 10% EC, and teflubenzuron 5% EC were found to be selective against the cocoon stage. In contrast, contact toxicity of four insecticides viz., cartap 75% SG, chlorfenapyr 10% F, emamectin benzoate 1% EC, permethrin 20% EC were found to be moderately to extremely toxic (80% to 100% lethal) to wasp stage. Effects of oral toxicity of three IGRs on wasp stage were somewhat selective. However, beneficial performance of wasps seems to be adversely affected as host parasitism was recorded as being significantly different (P < 0.05) in comparison with control. A persistent toxic effect of insecticides via cabbage leaves discs against female wasps showed that cartap 75% SG was moderately persistent (16-30 days). While chlorfenapyr 10% F and emamectin benzoate 1% EC were recorded slightly to be persistent (5-10 days) and permethrin seems to be short lived (< 5 days). Implications of tested products in IPM of cabbage are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Hiroshi Amano, Muhammad Haseeb

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

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Plutella xylostella Cabbage (Brassica oleracea)
Cotesia vestalis (parasitoid) Plutella xylostella Cabbage (Brassica oleracea)
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