江西省稻飞虱发生特点及成灾机制浅析

稻飞虱是造成水稻大面积减产甚至绝收的一类重要迁飞性害虫。20世纪70年代以来，在江西境内多次猖獗发生，造成了严重的经济损失。稻飞虱在江西稻区的频繁暴发与迁入虫量、水稻品种、田间管理措施以及当地的环境条件密切相关。由于存在有利于稻飞虱迁入和扩散的条件，在今后较长时期内该类害虫仍会是江西稻区的主要害虫。

Occurrence characteristics and underlying mechanisms of the rice planthopper in Jiangxi

Rice planthopper,a major destructive insect pest complex occurring in China and many Asian countries,have frequented Jiangxi Province and caused great economic losses to rice production since 1970.Based on historical data from the literature and Jiangxi Plant Protection and Quarantine Station,the pest status of the planthopper are closely related to immigration size,rice varieties,field management and local weather conditions.Under the favorable conditions,the planthopper could break out again in Jiangxi Province.The implementation of effective control strategies in Jiangxi was therefore suggested.