波纹杂毛虫综合防治试验

波纹杂毛虫幼虫 Cyclophragmaundans (walker) ]是马尾松林又一害虫 ,用 2 5 %溴氰菊酯 2 5 0 0倍液、4 0 %氧化乐果80 0倍液、80 %敌敌畏乳油 15 0 0倍液、5 0 %甲胺磷乳油 10 0 0倍液 ,防治效果可达 92 %以上。用 2 5 %溴氰菊酯乳油加白僵菌纯孢子油剂 1∶80采取超轻型飞机超低容量喷雾 ,防治效果可达 95 %以上。在气象条件适宜情况下 (地面温度呈逆增时 ) ,在凌晨施放林丹烟剂加 2ml的 2 5 %敌敌畏乳油 ,用量 15kg·hm-2 ,对 2～ 4龄幼虫防治效果可达 95 %以上。

Experiment on the Integrated Control of Cyclophragma undans

Cyclophragma undans is another injurous insect of Pinus massoniana forests. The control effect may reach 92% and more with 2500 fold solution of 2.5% of deltamethrin,800 fold solution of 40% of omethoate,1500 fold solution of 80% of DDVP oil emulsion and 1000 fold solution of 50% of methamidophos oil emulsion.The control effect may reach 95% and more with ultra low volume of 1∶80 2.5% of deltamethrin oil emulsion with addition of Muscardine Beauveria bassiana pure spore oil soluble concentration which are spraied by ultra light planes.On the condition of suitable weather (the ground temperature assumes inversion),the control effects for the second to fourth instar larvaes may reach 95% and more with application of 15 kg of Lindan smoke agent with addition of 2 ml of 25% of DDVP oil emulsion per hm 2.