CAJ | 학술논문

为了解不同杀虫剂对小菜蛾的杀虫活性，采用浸卵法、浸叶法、浸渍法和药膜法分别测定了6种杀虫剂(虫螨腈、虱螨脲、氯虫苯甲酰胺、茚虫威、阿维菌素和多杀霉素)对小菜蛾卵、幼虫、蛹和成虫4种不同虫态的室内活性。结果表明：田间推荐剂量下，6种杀虫剂对小菜蛾幼虫具有很高的杀虫活性，虫螨腈和多杀霉素具有速效性，药后24 h校正死亡率在90%以上。药后72 h，虫螨腈、氯虫苯甲酰胺、阿维菌素和多杀霉素这4种药剂校正死亡率达100%。此外，6种杀虫剂均具有一定的杀卵作用，杀卵活性最强的是虱螨脲，多杀霉素和阿维菌素的杀卵作用较差。尽管有些杀虫剂杀卵作用稍差，但这些药剂可以杀死初孵幼虫，降低幼虫存活率。田间推荐剂量下，所有药剂处理2龄幼虫存活率均小于10%。6种杀虫剂中，对小菜蛾蛹和成虫活性最好的药剂为虫螨腈和茚虫威，其余药剂效果较差或几乎没有杀蛹和杀成虫活性。
위료해불동살충제대소채아적살충활성，채용침란법、침협법、침지법화약막법분별측정료6충살충제(충만정、슬만뇨、록충분갑선알、인충위、아유균소화다살매소)대소채아란、유충、용화성충4충불동충태적실내활성。결과표명：전간추천제량하，6충살충제대소채아유충구유흔고적살충활성，충만정화다살매소구유속효성，약후24 h교정사망솔재90%이상。약후72 h，충만정、록충분갑선알、아유균소화다살매소저4충약제교정사망솔체100%。차외，6충살충제균구유일정적살란작용，살란활성최강적시슬만뇨，다살매소화아유균소적살란작용교차。진관유사살충제살란작용초차，단저사약제가이살사초부유충，강저유충존활솔。전간추천제량하，소유약제처리2령유충존활솔균소우10%。6충살충제중，대소채아용화성충활성최호적약제위충만정화인충위，기여약제효과교차혹궤호몰유살용화살성충활성。
Bioactivities of chlorfenapyr, lufenuron, chlorantraniliprole, indoxacarb, abamectin and spinosad to eggs, larvae, pupae and adults ofPlutella xylostella were studied by egg-dipping method, leaf-dipping method, immersion method and residual film method in the laboratory. The results showed that the six insecticides had excellent effects on larvaeof P. xylostella. Chlorfenapyr and spinosad had quick bioactivities after 24 h treatment, and the corrected mortalities were above 90%. The corrected mortalities of chlorfenapyr, chlorantraniliprole, abamectin and spinosadreached 100% after 72 h treatment, the corrected mortality of indoxacarb were 98.2%. All of the six insecticides had certain ovicidal effects, ovicidal activity of lufenuron was high, abamectin and spinosad had low ovicidal activities, but could kill neonate larvae and decrease survival rates of larvae. The survival rates of 2nd instar larvae were below 10% after eggs treated with field doses of all six insecticides. Among six insecticides, chlorfenapyr and indoxacarb showed higher toxic to pupae and adults ofP. xylostella, the other four insecticides had a little or no toxic to pupae and adults ofP. xylostella.