作　　者： ; ; ; ; ;

机构地区： 华南农业大学

出　　处： 《农药》 2006年第2期 133-134,136,共3页

摘　　要： 研究了几种药剂对柑桔锈螨的毒杀作用。几种供试药剂对柑桔锈螨成螨都表现出较高的毒力，LC50 分布在0．31—4．51μg／ml之间。0.3％印楝素EC对柑桔锈螨各龄螨的毒杀效果非常明显，各龄螨对0．3％印楝素EC的敏感程度为：第1龄若螨〉第2龄若螨〉成螨。施药1d对第1龄若螨、第2龄若螨和成螨的LC50分别为0.29、0．37、0．631μg／ml。田间试验表明，0．3％印楝紊EC对柑桔锈螨有较好的田间防治效果，施药后3、5d的平均螨口减退率分别为82．9％和94．14％。 The poisoning efficacy of several pesticides on citrus rust mite （Phyllocoptruta olievora） was determined. These pesticides were highly effective against adult citrus rust mites, with LC50s from 0.31 to 4.51μg/ml. Azadirachtin 0.3% EC showed significant control of all growth stages of citrus rust mite, with sensitivities as follows： protonymph 〉 deutonymph 〉 adults. One d after treatment, the LC50s of azadirachtin 0.3% EC against protonymphs, deutonymphs, and adults were 0.29, 0.37, and 0.63 mg/ml, respectively. In field trials, azadirachtin 0.3% EC provided good control of citrus rust mites, with 82.9 and 94.14% control 3 and 5 d, respectively, after application.

关 键 词： 印楝素 柑桔锈螨 防治效果

领　　域： [农业科学] [农业科学]