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以不同类型的十三种杀虫剂对菜田三种寄生蜂(凤蝶金小峰、菜粉蝶绒茧蜂和啮小蜂)进行了室内触杀活性研究。拟除虫菊酯类杀虫剂对寄生蜂的击倒速度,通常较有机磷制剂快,但其杀虫活性较有机磷制剂小。在四种拟除虫菊酯中,杀灭菊酯和中西除虫菊酯对凤蝶金小蜂的毒性,较氯氰菊酯和二氯苯醚菊酯小。马拉硫磷对凤蝶金小蜂的击倒速度最快。乙酰甲胺磷等七种有机磷制剂对凤蝶金小蜂的活性都很大。微生物制剂浏阳霉素对凤蝶金小蜂无杀虫活性,但和乐果复配后。杀虫活性明显增加。在试验条件下,凤蝶金小蜂接触4.35×10~(-4)毫克/平方厘米药膜后,开始击倒的速度顺序为:马拉硫磷>氯氰菊脂二氯苯醚菊酯>中西除虫菊酯>敌百虫氧化乐果>甲胺磷>乙酰甲胺磷;活性顺序为:氧化乐果>马拉硫磷甲胺磷>敌百虫乙酰甲胺磷>氯氰菊酯二氯苯醚菊酯>中西除虫菊酯。杀灭菊酯对菜粉蝶绒茧蜂的击倒速度较三唑磷快,但活性较三唑碟小。杀灭菊酯和中西除虫菊酯对菜粉蝶绒茧蜂的重寄生蜂啮小蜂的活性较三唑磷小。接触拟除虫菊酯后,个别中寄或死亡的风蝶金小蜂和啮小蜂,有缓解现象。
Three different kinds of insecticides were used to study the indoor contact activity of three kinds of parasitoids (Papilio Jin Xiaofeng, Pieris brassicae and Beesia crassipes) in vegetable field. Pyrethroid insecticides on the parasitoids knockdown speed, usually faster than the organic phosphorus preparations, but its insecticidal activity than the organic phosphorus preparations. Among the four pyrethroids, fenitrothion and pyrethroids were less toxic to cymbidium cypermethrin than cypermethrin and permethrin. Malathion on the Papilionidae knockdown the fastest. Acephate and other seven kinds of organophosphorus preparations on the activity of the Papilionidae are very large. Biocidal agent Liuyangmycin had no insecticidal activity on the golden butterfly of the Papilionidae but after it was mixed with the dimethoate. Insecticidal activity increased significantly. Under the experimental conditions, the velvetleaf bees contact with 4.35 × 10 ~ (-4) mg / cm 2 film, the order of speed of knockdown was: malathion> cypermethrin> pyrethrin> pyrethrum Ester> Trichlorfon Omethoate> Methamidophos> Acephate; Active Sequences: Omethoate> Malathion Methamidophos> Trichlorfon Acephate> Cypermethrin Permethrin> Chinese and western pyrethrins. The fenvalerate knock-down rate on Brassica campestris was faster than triazophos but its activity was less than that of triazolam. Pyrethrins and pyrethroids of Helicoverpa armigera were more active than those of triazophos. Pyrethroids exposure, the individual sent or died in the genus Aedes gold bee and bee had bee, to alleviate the phenomenon.