河南省绿盲蝽对有机磷类杀虫剂的抗药性监测

Monitoring the resistance of Apolygus lucorum(Hemiptera: Miridae) to organophosphate insecticides in Henan Province

【目的】全面了解河南省绿盲蝽Apolygus lucorum(Meyer-Dür)对有机磷杀虫剂的敏感性变化,可为该虫的有效防治提供科学依据。【方法】采用瓶膜法于2010—2013年系统监测了河南新乡、周口、南阳地区绿盲蝽田间种群对毒死蜱、马拉硫磷、辛硫磷和乙酰甲胺磷4种常用有机磷杀虫剂的敏感性。【结果】相对于室内敏感种群,2010—2013年河南省各地绿盲蝽种群对不同有机磷杀虫剂表现出不同程度的敏感性变化,但相对毒力比值均小于5倍。其中对毒死蜱、马拉硫磷、辛硫磷和乙酰甲胺磷的敏感性均未降低,且3个种群对马拉硫磷表现为敏感性增强。【结论】毒死蜱、马拉硫磷、辛硫磷和乙酰甲胺磷仍是河南省防治绿盲蝽的有效药剂。

[Objectives] To determine changes in sensitivity to common organophosphate insecticides in Apolygus lucorum（ Meyer-Dür）（Hemiptera：Miridae） in cotton growing regions of Henan Province. [Methods] The toxicities of chlorpyrifos, malathion, phoxim, acephate to A. lucorum collected in Xinxiang, Zhoukou, and Nanyang were evaluated during 2010-2013 using a glass vial bioassay method. [Results] Compared to a relatively susceptible population, the RR（Resistance ratio）of A.lucorum to the four insecticides were all lower than 5-fold with no obvious change over 4 years. A.lucorum from all three locations were susceptible to chlorpyrifos, malathion, phoxim, and acephate, and sensitivity to malathion among three populations actually increased. [Conclusion] Therefore, chlorpyrifos, malathion, phoxim, and acephate are recommended for the control of green plant bugs in Henan cotton-growing regions.