冀东稻区防治主要螟虫的药剂筛选试验

Screening Experiment for Pesticides to Control Main Borer Worms in Eastern Hebei Rice Planting Area

2008年选择了4种杀虫剂进行防治水稻二化螟、稻纵卷叶螟的田间药剂试验,结果显示:20%康宽(CoregenTM)150 ml/hm2防效最好,其杀虫、保穗和保叶效果均超过95%,50%灵蛙1 200 ml/hm2、20%解千愁1 350 ml/hm2、15%阿维毒1 800 ml/hm2防治效果也较理想,其杀虫、保穗和保叶作用分别达90%左右。4种新型杀虫剂的防治效果显著优于常规药剂——90%杀虫单sp(900 g/hm2)、18%杀虫双(3 000 g/hm2),在试验剂量下,4种杀虫剂对水稻的正常生长无影响,安全性好。

Four pesticides were used in rice to control rice stem borer and paddy leaf roller in 2008 and the results showed that 150 ml/hm^2 of 20% CoregenTM had the best control effect and then 1 200 ml/hm^2 of 50%Fipronil-Trichlorfon, 1 350 ml/hm^2 of 20% Jieqianchou and 1800 ml/hm^2 of 15%Avermectin.