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首页> 外文期刊>Indian Journal of Entomology >Evaluation of biopesticides and insecticides against egg parasitoid, Trichogramma brasiliensis ashmead.
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Evaluation of biopesticides and insecticides against egg parasitoid, Trichogramma brasiliensis ashmead.

机译：杀虫剂和杀虫剂对卵寄生性拟南芥Trichogramma brasiliensis ashmead的评价。

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摘要

The LT50 value (lethal time to kill 50% test insect) was calculated to determine the safest and poisonous insecticides among endosulfan at 0.05%, cypermethrin at 0.006%, monocrotophos at 0.05%, dimethoate at 0.04%, neem seed kernel extract (NSKE) at 5.0 and Bacillus thuringiensis (Bt) at 0.2%, sprayed on potted plants of tomato. Twenty freshly emerged adult parasitoids (T. brasiliense) were released in glass vials coated with the treated leaves. The LT50 value was highest (114.26 h) for endosulfan, followed by cypermethrin and monocrotophos with 60.14 and 33.17 h, respectively, for 2 h exposure period. The other insecticides with low LT50 values were dimethoate (2.65 h) and NSKE (1.85 h). All the insecticides tested were less toxic to the parasitoid than endosulfan. The order of residual toxicity of the 6 insecticides in descending order was: endosulfan > cypermethrin > monocrotophos > dimethoate > NSKE > Bt.
机译：计算LT 50 值（杀死50％试验昆虫的致死时间），以确定硫丹中最安全和有毒的杀虫剂为0.05％，氯氰菊酯为0.006％，久效磷为0.05％，乐果为0.04％ ，将5.0的印度em树籽仁提取物（NSKE）和0.2％的苏云金芽孢杆菌（Bt）喷洒在番茄盆栽上。在用处理过的叶子包被的玻璃小瓶中释放了二十种新近出现的成虫寄生虫（巴西长毛。虫）。硫丹的LT 50 值最高（114.26 h），其次是暴露2 h的氯氰菊酯和久效磷，分别为60.14和33.17 h。 LT 50 值较低的其他杀虫剂是乐果（2.65小时）和NSKE（1.85小时）。所有测试的杀虫剂对寄生虫的毒性均低于硫丹。 6种杀虫剂的残留毒性从大到小依次为：硫丹>氯氰菊酯>久效磷>乐果> NSKE> Bt。

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