【摘要】 以三氯杀螨砜药液处理苹果叶螨 ,结果表明 ,该制剂对卵若 (幼 )螨表现出较高的杀灭活性 ,但对成螨的杀灭活性低。进一步研究发现 ,该制剂能有效抑制雌成螨生殖力 ,田间应用虽不能迅速杀死成螨 ,但能逐渐压低螨口密度 ,与甲氰菊酯混用可显著提高速效 ,达到理想效果更多还原

【Abstract】 The toxicity of tetradifon to various growth forms of tetranychus viennensis was tested with immersion method in the laboratory.The results showed that tetradifon was more toxic to the eggs and larvas than to the adults of mite.Although it couldn’t kill the adult mites quickly,it could hold back the reproductive ability of femal mites.So tetradifon could control the spider slowly and effectively.The mixture formulation of tetradifon with fenpropathrin will be better than used it only in orchard.更多还原