药剂点心防治甘蔗螟虫的初步试验

Preliminary Test of Insecticide by Applying in New Leaf on Sugarcane Borer Control

用4种药剂对甘蔗植株进行点心防治甘蔗螟虫，结果表明；各处理都可减少螟害节率，对甘蔗条螟的防治效果显著，其中以（90％敌百虫晶体30g＋18％杀虫双水剂40g）／133m2效果最好，校正防效达83．3％，降低螟害节率33％。

The treatments of controlling sugarcane borer with four kinds of insecticide to new leaf were conducted. The result showes that each treatment can bring about an effective reduction Chilo venosatus Walker and controlling of internodal borer. Especially insecticide 30 g of 90% Trichlorphon crystal plus 40 g of 18% Dimehypo solution is the best one. Its correcting effect is 83. 3% and the reduction rate of internode is 33%.