笔者于1981、1982年在蚌埠市西郊涂山园艺场对防治天牛幼虫的方法进行了改进,效果显著提高。现在该场已普遍采用。具体作法是: 选用无病干树枝,沾80％敌敌畏乳油50％对硫磷乳油50倍液或90％晶体敌百虫20倍液(配好的药液是装在废墨水瓶里的)。根据幼虫排粪孔的大小,选适 The author in 1981, 1982 in the western suburbs of Bengbu Tuoshan horticultural field on the prevention and control of Tianzhu larva method has been improved, the effect is significantly improved. This field is now commonly used. Specific practices are: use of disease-free dry branches, dip 50% dichlorvos EC 50% parathion EC 50 times or 90% crystal trichlorfon 20 times (with a good liquid medicine is installed in the waste ink bottle). According to larvae fecal hole size, choose the right