摘要
研究了20％氯虫苯甲酰胺悬浮剂对稻纵卷叶螟的防效及对稻田常见有益节肢动物的安全性。室内毒力测定结果显示：将20％氯虫苯甲酰胺悬浮剂稀释3000、6000倍浸渍水稻叶片，接稻纵卷叶螟幼虫24h死亡率在40％左右，96h死亡率达i00％。稻田小区和大面积示范试验结果显示：药后14d，氯虫苯甲酰胺对稻纵卷叶螟的防效分别为90．s9％、97．07％，高于药后4、7d的防效。其防效好于氟虫腈、虫酰肼＋辛硫磷。田间与施药前相比，药后14d球腹蛛显著增加，微蛛、狼蛛的数量及蜘蛛总量无显著差别。室内测定，氯虫苯甲酰胺处理后，黑肩绿盲蝽及稻虱缨小蜂的死亡率在O～6．67％。上述结果表明：氯虫苯甲酰胺对稻纵卷叶螟有很好的防效，且对稻田有益节肢动物安全。
The control effectiveness of 20% chlorantraniliprole SC on Cnaphalocrocis medinalis and its safety to ben- eficial arthropods were studied. Toxicity test results showed that the mortality of C. medinalis fed on rice leaves treated by chlorantraniliprole was about 40 % within 24h after treatment, reaching 100% within 96h after treatment. Plot experiments and field demonstration trial results indicated that control effectiveness of chlorantraniliprole against C. medinalis, reaching 90. 59G and 97. 07%, respectively, within 14d after treatment, was higher than those ob- served within 4d or 7 d after treatment. The control effectiveness of chlorantraniliprole was better than those of fipronil and tebufenozide mixed with phoxim. The amount of Theridion spp. within 14d after chlorantraniliprole treatment was higher than that observed before treatment. The amount of Erigone spp. , wolf spider and total spi- ders had little change after treatment. Mortality of Cyrtohinus lividipennis and Anagrus nilaparvatae treated by chlorantraniliprole was less than 6.67%. The results altogether revealed that chlorantraniliprole had pronounced ef- fectiveness against C. medinalis, and it is highly safe to beneficial arthropods in the paddy fields.
出处
《植物保护》
CAS
CSCD
北大核心
2009年第5期139-144,共6页
Plant Protection
基金
国家自然科学基金(30500329)
国家科技支撑计划(2006BAD02A03)
江苏太湖治理专项(BS2007143)
关键词
氯虫苯甲酰胺
稻纵卷叶螟
防效
有益节肢动物安全性
chlorantraniliprole
Cnaphalocrocis medinalis
control effectiveness
safety to beneficial arthropod
