药剂对温室白粉虱卵毒性作用的研究

就几种药剂对温室白粉虱卵的毒性进行了测定，亦就增效剂对药剂杀卵增效作用进行试验研究。结果表明：各种药剂在常规温度下，对温室白粉虱卵的杀伤效果都很低，卵的校正死亡率在１．４６％￣１４．０４％之间，加入１０００倍的增效剂后，各种药剂的杀卵明显提高，卵的校正死亡率可增到１７．４％￣２５．８３％，平均增效系数为５．７２；各种药剂的作用效果随增效剂用量的增加而显著提高，氧化乐果中加入１０００倍增效剂时，卵的

The Study of Insecticides for the Ova of Trialeurodes vaporariorum Westwood

The effect of insecticides on the ova of greenhouse white flies Trialeurodes vapoariorum westwood was reported. The result showed that the effectiveness of insecticedes on the ova of greenhouse whiteflies was from 1. 46 % to 14, 04 % when these insecticides were used only. The effortiveness was 17. 4 % to 25. 83 % when these insecticides were mixed with 1000 times synergist. By increasing the concentration of Synergist used, the effect of insecticides on the ova was enhanced; the greatest mortality of the ova of greenhouse whiteflies had reached 83 .88%.