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通讨药剂对柞蚕的残毒期试验,初步确定50%马拉硫磷乳汕对柞蚕的残毒期为5天;80%敌敌畏乳油、50%辛硫磷乳油为7天;60%敌马合剂为9天;10%二氯苯醚菊酯为25天。经初步调查尚未发现上述药剂对柞蚕场天幕毛虫的天敌有杀伤作用。
Discuss the residual drug toxicity test on tussah, initially determined 50% malathion Laoshan on Tussah’s residual poisoning period of 5 days; 80% dichlorvos EC, 50% phoxim EC for 7 days; 60% 9 days; 10% permethrin for 25 days. Preliminary investigation has not found the above chemicals on the tussah field cemetery natural enemies killing effect.