光肩星天牛无公害防治技术研究

利用高效低毒制剂对光肩星天牛进行无公害防治技术的试验研究,结果表明:在成虫羽化始盛期对被害木树干喷施200倍液绿色威雷,杀虫率可达100.0%。利用打孔注药法,注射6%吡虫啉乳油1.5ml.cm-1胸径、护树宝注干剂1.0～1.5 ml.cm-1胸径、40%氧化乐果1.5 ml.cm-1胸径的药剂量防治幼虫,杀虫率均在96.3%以上;同时可有效防治黄褐天幕毛虫等多种食叶害虫,且不对环境造成污染。用棉签沾白僵菌粉剂20～50倍液塞入蛀入孔防治幼虫,效果达93.5%以上。从环保角度出发,氧化乐果应逐渐停止使用。

Research on pollution-free control of Anoplophora glabripennis

Experiments on pollution-free control of Anoplophora glabripennis were conducted by using effective and low concentration pesticide.Results showed that the mortality reached to 100.0% if spaying cyper-methrin（1200） on injured trunk at emergence period.The mortality were above 96.3% when 1.5 ml·cm-1（DBH） 6% imidacloprid,1.0～1.5 ml·cm-1 Hushubao trunk-injection pesticide, or 1.5 ml·cm-1 40% omethoate was injected into trunks to control larva.Meanwhile, this pollution-free control was also effective to many defoliators,such as Malacosoma neustria testacea.The mortality was above 93.5% when inserted cotton swabs dipping Beauveria bassiana（120～50） solution into the wormholes.The omethoate should be excluded considering the environment protection.