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首页> 外文期刊>Phytoprotection >Toxicity effects of an insecticidal soap on the green peach aphid [Homoptera: Aphididae]
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Toxicity effects of an insecticidal soap on the green peach aphid [Homoptera: Aphididae]

机译：杀虫皂对桃蚜的毒性作用[同翅目：蚜科]

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摘要

Effets of an insecticidal soap on the survival, development and reproduction of the green peach aphid, Myzus persicae, were studied. Twenty-four hours after application at a concentration of 37.50 g L super(-1), the soap caused 100% mortality in all aphid instars, and LC sub(50) (lethal concentrations causing 50% mortality in the population) were 1.50, 3.25 and 5.50 g L super(-1) for first and second instars, third and fourth instars, and adult M. persicae, respectively. Aphids that survived the LC sub(50) had a shorter longevity than the controls. Both insecticidal soap and parasitoids could be used on a crop but, as the LC sub(50) of the third and fourth instars and adult M. persicae are higher than that of the aphid parasitoid Aphidius colemani (2.75 g L super(-1)), it is essential to avoid treating aphids with insecticidal soap when adult parasitoids are present in the crop.
机译：研究了杀虫皂对桃蚜（Myzus persicae）的存活，发育和繁殖的影响。浓度为37.50 g L super（-1）施用后二十四小时，肥皂在所有蚜虫幼虫中造成100％的死亡率，LC sub（50）（致死浓度在种群中造成50％的死亡率）为1.50，第一龄和第二龄，第三龄和第四龄以及成年M. persicae分别为3.25和5.50 g L super（-1）。在LC sub（50）中存活的蚜虫的寿命比对照短。杀虫皂和类寄生虫都可以在农作物上使用，但是，由于第三龄和第四龄幼虫的LC LC（50）和成虫M. persicae高于蚜虫类寄生虫Aphidius colemani（2.75 g Super（-1）） ），当农作物中有成虫寄生虫时，必须避免用杀虫皂处理蚜虫。

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