几种杀虫剂防治水稻二化螟兼治纵卷叶螟的效果研究

Effects on Chilo Suppressalis and Cnaphalocrocis Medinalis Control of a Few Insecticide

2006年选择4种杀虫剂进行了防治水稻二化螟兼治纵卷叶螟田间药效试验。结果表明,50%稻螟清EC 1 500 mL/hm2防效最好,其杀虫、保穗和保叶效果均超过95%;15%螟纵净EC1 350 mL/hm2、45%螟退EC 1 200 mL/hm2、18%速灭螟EC 1 500 mL/hm2防治效果也较理想,其杀虫、保穗和保叶效果分别达90%左右。4种杀虫剂防效显著优于常规药剂90%杀虫单SP900 g/hm2和50%甲胺磷EC 2 250 mL/hm2。在试验剂量下,4种药剂对水稻的正常生长无显著影响,安全性好。

Four different types of insecticides were tested on their controlling effects on Chilo suppressalis and Cnaphalocrocis medinalis.The results showed that 50% Daominqing EC gave the best results,and 15% Minzongjing EC and other insecticides also gave good effects.They all showed no damage on rice growth.