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桑天牛幼虫在树干蛀的孔道内活动,用药困难,防治不便。河北省武强县农业局经几年试验,初步摸索到了一种较好的防治方法,取名扦插堵孔防治法。防治效果95％以上。其方法是用树枝一条(有柔性、长半尺左右),粗细和桑天牛排粪孔大小相等,一头蘸上农药(胃毒剂或触杀剂原液),从排粪孔内向上直插,直到插不动为止,这样便阻塞了蛀虫的孔道,通气不畅,排粪不便,幼虫回头啃食树枝上的农药,即可中毒死一亡。应用此法,要注意根据新粪便的位置,寻找幼虫的新蛀孔,以便有效地毒死幼虫。蘸药时要仔细,只蘸插入的一头,蘸药长度
Morus alba larvae in the trunk of the tunnel activities, medication difficulties, prevention and control inconvenience. Wuqiang County Bureau of Agriculture in Hebei Province after several years of trials, initially found a better method of prevention and control, named cutting plugging prevention and control method. Prevention and control of more than 95%. The method is to use a branch (flexible, about half a foot long), thickness and Moritae fecal hole size equal, one dipped in pesticides (stomach poison or touch agent stock solution), straight up from the fecal hole until the plug So fixed, so it blocked the borers borers, poor ventilation, defecation inconvenience, larvae back eating pesticide on the branch, you can poison the death. Apply this method, pay attention to the new wormhole according to the location of the new droppings, in order to effectively poison larvae. When dipped in medicine carefully, only dipped into a head, dipped in drug length