15%乐斯本颗粒剂防治甘蔗害虫田间药效试验

The Effective Test of 15%Chlorpyrifos G against Exolontha serrulata(Gyllenhal) and chilo infuscatellus Snellen

15 %乐斯本颗粒剂对甘蔗害虫具有良好的防治效果。 3～ 5月份结合甘蔗松、培土 ,施15 %乐斯本颗粒剂 1 0 0、1 33、1 6 7kg/6 6 7m2 ,对蔗龟的防效达 88 4%以上 ,对蔗螟的防效在 80 %左右 ,可做为蔗龟、蔗螟防治中的轮换用药。田间使用以 1 0 0～ 1 33kg/6 6 7m2 为宜。

The results of field trials showed the good control efficacy of 15% chlorpyrifos G against Exolontha serrulata (Gyllenhal) and Clilo infuscatellus Snellen Applied 15% chlorpyrifos G 1 00～1 67kg/667m 2 in loosen and hill up soil in March～May,the control efficacy in Exolontha serrulata (Gyllenhal) was over 88 4%,the efficacy in Chilo infuscatellus Snellen reached about 80% Chlorpyrifos could be used a substitute to control the sugarcane pest