森得保、虫螨克星对思茅松毛虫的防效试验

Antagonistic Effects of Sendebao and Chongmankexing to Dendrolimus kikuchii Matsumura

应用森得保、1.8%虫螨克星2种生物药剂对思茅松毛虫防治药效进行对比试验,结果表明:施用2种不同浓度的药剂后,1 d、2 d、3 d的死亡率之间存在显著性差异。2种药剂1000 mg·kg-1效果最好,对思茅松毛虫处理1 d、2 d、3 d均有杀死作用,1 d后思茅松毛虫死亡率达60%以上,3 d能达到99%以上,效果最好。森得保的直接效果优于1.8%虫螨克星。

Application the Sendebao and 1.8% Chongmankexing ,two types of biological pharmacy to control D.kikuchii Matsumu-ra.The results show that：two different concentrations of chemicals exist significant differences between 1 d,2 d and 3 d mortality.two types of pharmacy concentration on the D.kikuchii Matsumura.1000 mg· kg -1 processing 1 d,2 d,3 d effects were killed,especially the 3 days.Insecticidal effect of Sendebao superior 1.8%chongmankexing.Mortality of Dendrolimus kikuchii reaches above 60%af-ter 1 day,3 days up to 99% percent.Results show that the two pesticides are effective ,but the sum of direct effect is better than 1.8%Chongmankexing.