盈江县高效中低毒农药防治甘蔗害虫试验初报

Test of Efficient Low Toxicity Pesticides for Pests Control in Sugarcane in Yingjiang

通过4种农药在甘蔗生产上的应用试验,结果表明:对甘蔗苗期的枯心苗防治效果最好的是3.6%加强型杀虫双,其次是20%毒死蜱,最差的是5%异丙特丁硫磷。对整个甘蔗生长期的螟虫为害蔗茎的防治效果最好的是20%毒死蜱,其次是3.6%加强型杀虫双,最差的是8%毒·辛。4种农药防治地下害虫的效果都好,彼此间没有明显的差异。建议在今后甘蔗大田生产应用中,20%毒死蜱颗粒剂和3.6%加强型杀虫双颗粒剂可相互替换使用,每667m^2用药量分别是1 kg、6kg,分别在甘蔗种植和苗期管理上使用,8%毒·辛和5%异丙特丁硫磷颗粒剂暂时不做大面积推广应用。

Results on testing pesticides for pests control of sugarcane showed that the best pesticides for control heart-dead seedlings of sugarcane was 3.6% enhanced dimehypo, followed by 20% chlorpyrifos, the worst was 5% isopropyl terbufos. The most effective chemical that control the whole growth phase of sugarcane borer was 20% chlorpyrifos, followed by 3.6% enhanced dimehypo, the worst was the 8% poisons-xin. Preventive effects of four pesticides on underground pest were acceptable, but there is no obvious difference. It is suggested that 20% chlorpyrifos granule or 3.6% enhanced dimehypo could be used ahernately, the dosage for one 667 m^2 were 1 kg and 6kg, respectively, in the sugarcane planting and seedling period. Results also showed that 8% poison-xin and 5% isopropyl terbufos were not suitable for application in large area.