入秋以来,长江中下游、江南、华南大部气温比常年偏高1℃以上,“晚秋不凉”气候条件十分有利于水稻“两迁”害虫发生危害,华南、江南部分双季晚稻和长江中下游局部单季晚稻存在突发成灾的风险。因此,后期病虫防控仍不可放松。据全国农作物重大病虫测报网监测和农业部组织专家实地调查,当前华南、江南双季晚稻区稻飞虱百丛虫量一般300~800头, Since autumn, the temperatures in the middle and lower reaches of the Yangtze River, the southern part of the Yangtze River and the southern part of China have been over 1 ℃ above normal in recent years. The climatic conditions are very conducive to the pests’ Seasonal late rice and the middle and lower reaches of the Yangtze River single season late rice risk of sudden disaster. Therefore, post-pest control is still not relaxed. According to the national monitoring report of major pests and diseases of crops and the field investigation organized by experts from the Ministry of Agriculture, the current population of rice planthoppers in South China and Jiangnan double cropping rice fields is generally 300 to 800,