重庆市稻飞虱、稻纵卷叶螟2009年重发生的特点及原因

The Characteristics and Causes of Serious Occurrence of Rice Planthopper and Leafroll Worm of Chongqing Municipality in 2009

2009年重庆市"两迁"害虫大发生,其中稻飞虱发生面积是1950年以来的第3个大发生年;稻纵卷叶螟发生面积是1950年以来的历史最高水平.该文总结了重庆市2009年"两迁"害虫发生特点,并分析了其发生原因.

The rice planthopper and leafroll worm broke out seriously in Chongqing in 2009.Areas of occurance of rice planthopper is the third from 1950 to 2009,and areas of occurance of rice leafroll worm is the hingest level since 1950.Moreover,this paper summarized characteristics of occurrence of rice planthopper and leafroll worm and analysed their occurrence causes.