不同杀虫剂对水稻二化螟及稻纵卷叶螟的田间防效

Field Control Effect of Different Insecticides for Controlling C.suppressalis and C.medinalis

为筛选防治水稻二化螟及稻纵卷叶螟的有效药剂,达到一次施药防治2种害虫、减少农药使用次数的目的,于2021年在肥西县西郑岗村采用田间药效试验探究了生产上常用的7种杀虫剂对二化螟和稻纵卷叶螟的防治效果。结果表明,6%阿维·氯虫苯甲酰胺SC(750 mL/hm^(2))和40%氯虫·噻虫嗪WG(120 g/hm^(2))对水稻二化螟和稻纵卷叶螟具有很好的虫口防效及保株效果,10%阿维·甲氧虫酰肼SC(750 mL/hm^(2))、200 g/L氯虫苯甲酰胺SC(150 mL/hm^(2))和200 g/L四唑虫酰胺SC(150 mL/hm^(2))对2种害虫有较好的虫口防效及保株防效。5种药剂对水稻生长及环境安全,是同时防治2种害虫的理想药剂。

For screening effective insecticides for controlling the rice Chilo suppressalis and rice Cnaphalocrocis medinalis,to achieve the purpose of controlling these two pests by applying insecticides once,which can result in reducing pesticide use,field plot investigations were conducted to find the control efficacy of 7 insecticides against the two pests in Feixi,2021.The research showed that 6%abamectin·chlorantraniliprole SC(750 mL/hm^(2))and 40%chlorantraniliprole·thiamethoxam WG(120 g/hm^(2))both had an excellent control effect of two pests in population of insects and plant protecting.10%abamectin·methoxyfenozide SC(750 mL/hm^(2)),200 g/L chlorantraniliprole SC(150 mL/hm^(2))and 200 g/L tetrazolanamide SC(150 mL/hm^(2))were also controlled to some extent of these two pests.These 5 insecticides were safe for rice growth and environment,and were ideal insecticides for controlling C.suppressalis and C.medinalis.