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蔬菜常受蚜虫、烟青虫、菜青虫等为害,过去经常使用乐果、敌百虫、二嗪农等农药进行防治,但是长期使用有抗性产生,再则在平均气温18℃的低温下药效较差,因之急需用其它药剂更新。1980～1984年我所用法国罗素——优克福公司产品2.5％溴氰菊酯乳油在大白菜蚜虫(Rhopalosiphum pseudobrassicae Davis)、黄瓜蚜虫(Aphis gossgpii Glover)、番茄烟青虫(Heliothis armigera Hubner)、甘蓝菜青虫(Pieris rapae L.)等害虫上进行了田间小区试验及多点示范,证明敌杀死效果高于常规农药,具有良好的杀虫作用。1981～1982年的试验结果如下:
Vegetables are often aphids, tobacco budworm, cabbage caterpillars and other damage, the past often used dimethoate, trichlorfon, diazinon and other pesticides for prevention and treatment, but long-term use of resistance, and then in the average temperature of 18 ℃ low-temperature drugs Effective poor, so urgent need to use other agents to update. From 1980 to 1984, the 2.5% deltamethrin EC produced by our company Russell-Euclock in China was widely used in Rhopalosiphum pseudobrassicae Davis, Aphis gossipi Glover, Heliothis armigera Hubner, Pieris rapae L. and other pests on field trials and more demonstration plots to prove that the enemy kill higher than conventional pesticides, has a good insecticidal effect. The test results from 1981 to 1982 are as follows: