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云斑天牛(Batocera horsfieldi)是黄河三角洲广泛栽植的绒毛白蜡(Fraxinus velutina)最重要的蛀干害虫之一,其成虫补充营养期是防治的关键时期。应用绿色威雷(8%触破式微胶囊水悬剂)0.25%、0.33%、0.5%浓度的药液对绒毛白蜡云斑天牛成虫进行喷雾防治试验,以罩网法和地面法调查平均防治效果分别为90.7%和86.2%,防治效果非常显著,且特效期长达50d。
Batocera horsfieldi is one of the most important stem-bore pests of Fraxinus velutina widely planted in the Yellow River Delta. Its adult nutritional value is a critical period of control. The control experiment was carried out on the adult P. vannamei adults with green Weile (8% buffered microcapsule aqueous suspension) 0.25%, 0.33% and 0.5% The results were 90.7% and 86.2%, respectively. The control effect was very significant and the special effect period was up to 50 days.