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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (16): 281-284.

所属专题： 植物保护； 水稻

• 植物保护 农药 • 上一篇    下一篇

六种新农药对稻纵卷叶螟的田间防效评价

赵敏 李荣 吴传伟 张国忠 洪美萍 陈建明   

  • 收稿日期:2010-04-29 修回日期:2010-06-10 出版日期:2010-08-20 发布日期:2010-08-20
  • 基金资助:
    国家“十一五”科技支撑计划子专题;杭州市农业丰收计划项目

Evaluation of field control efficiency of six kinds of newly insecticides on rice leafroller, Cnaphalocrocis medinalis

  • Received:2010-04-29 Revised:2010-06-10 Online:2010-08-20 Published:2010-08-20

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摘要： 本文评价了六种新农药对单季稻主害代稻纵卷叶螟的田间防治效果。结果表明，药后5天，5%甲维盐11.25 g（有效含量/公顷，下同）、10%阿维?氟虫双酰胺60 mL和24%氰氟虫腙216 mL对稻纵卷叶螟的防效在95%以上，32%丙溴?氟铃脲288 mL、20%氯虫苯甲酰胺30 mL和14.5%甲维?毒死蜱211.5 mL的防效在73.5%-83.1%。药后12天，丙溴?氟铃脲和氰氟虫腙的防效为74.1%～82.7%，阿维?氟虫双酰胺和氯虫苯甲酰胺的防效为62.9%～65.6%，甲维盐和甲维?毒死蜱的防效在50%以下。药后31天，除丙溴?氟铃脲和氯虫苯甲酰胺还有40%防效外，其它药剂无防效。氰氟虫腙、氯虫苯甲酰胺、阿维?氟虫双酰胺的保叶效果最好，药后5-12天为68.5%～78%，显著高于甲维盐、丙溴?氟铃脲和甲维?毒死蜱（53.3%～69.9%）。药后31天甲维盐和甲维?毒死蜱的保叶效果差在26%以下，其它药剂仍有45%-62%保叶效果。

关键词: 越冬期, 越冬期, 茶树, 叶片生理指数, 种质材料, 抗寒性

Abstract: Field control efficiency of six kinds of newly insecticides on rice leafroller, Cnaphalocrocis medinalis of single-season rice were evaluated in the paper. The results showed that on the 5th day after spraying, control efficiency of 5% methylamino abamectin benzoate 11.25 g (a. i /hm2), 10% avermectins ? flubendiamide 60 mL (a. i /hm2) and 24% metaflumizone 216 mL (a. i /hm2) on C. medinalis were more than 95%, 32% profenofos ? hexaflumuron 288 mL (a. i /hm2), 20% chlorantraniliprole 30 mL (a. i /hm2) and 14.5% methylamino abamectin benzoate ?chlorpyrifos 211.5 mL (a. i /hm2) were 73.5%~83.1%. On the 12th day after spraying, control effects of profenofos ? hexaflumuron and metaflumizone were 74.1%~82.7%, avermectins ? flubendiamide and chlorantraniliprole were 62.9%~65.6%, methylamino abamectin benzoate and methylamino abamectin benzoate ? chlorpyrifos were less than 50%. On the 31st day, except control effect of profenofos ? hexaflumuron and chlorantraniliprole still had about 40%, other insecticides had no control efficacy. Leaf-protecting effects of metaflumizone, chlorantraniliprole, avermectins ? flubendiamide were 68.5%~78% for 5 to 12 days after spraying, and were significantly high than those of methylamino abamectin benzoate, profenofos ? hexaflumuron and methylamino abamectin benzoate ? chlorpyrifos （53.3%~69.9%）. On the 31st day, leaf-protecting effect of methylamino abamectin benzoate and methylamino abamectin benzoate ? chlorpyrifos were lower than 26%, and other insecticides still had 45%~62%.