Journal of Applied Entomology (2006) 130, 360-367
M. Babul Hossain and H.-M. Poehling (2006)
Non-target effects of three biorationale insecticides on two endolarval parasitoids of Liriomyza sativae (Dipt., Agromyzidae)
Journal of Applied Entomology 130 (6-7), 360-367
Abstract: Side effects of two azadirachtin formulations [NeemAzal-U (17% azadirachtin) and NeemAzal®-T/S (1% azadirachtin)] and two biorationale pesticides - Success® (Spinosad) and Abamectin (Avermectin) - on two endoparasitoids Opius (Opiothorax) chromatomyiae and Neochrysocharis formosa of Liriomyza sativae were investigated under laboratory conditions. The eggs of O. chromatomyiae, and the eggs, larvae and pupae of N. formosa within the host or within the plant/host complex were exposed to NeemAzal, Success and Abamectin at different dose rates. Adult emergence of O. chromatomyiae from parasitized L. sativae in NeemAzal-U (0.75, 1.5, 2.25 and 3 g/l water) drenched soil was only slightly lower than from untreated control hosts. In contrast, adult emergence of unparasitized L. sativae was almost completely inhibited by NeemAzal-U, indicating a high, direct toxicity. Development of O. chromatomyiae within L3 of L. sativae was very much affected from topical applications of NeemAzal®-T/S, Success® and Abamectin at particular dose rates. Spraying of tomato leaves with NeemAzal®-T/S revealed no detrimental effect on the adult emergence of N. formosa developing in mining L2 of L. sativae. This was in contrast to Success® and Abamectin which strongly affected N. formosa adult emergence when applied at different immature developmental stages of N. formosa.
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Link to article at publishers website
Database assignments for author(s): Hans-Michael Poehling
Research topic(s) for pests/diseases/weeds:
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.
|
|---|---|---|---|---|
| Liriomyza sativae | ||||
| Closterocerus formosus (parasitoid) | Liriomyza sativae | |||
| Opius chromatomyiae (parasitoid) | Liriomyza sativae |
