据全国农技中心预计,早稻病虫害总体呈偏重发生态势,发生面积3.14亿亩次。其中,虫害以稻飞虱、稻纵卷叶螟和二化螟为主,发生面积2.24亿亩次;病害以稻瘟病和稻纹枯病为主,发生面积9000万亩次。虫害稻飞虱在华南、江南和西南的南部稻区偏重至大发生,长江中下游稻区 According to the National Agricultural Technology Center estimates, early rice pests and diseases are generally biased in the trend, an area of ​​314000000 times. Among them, pests were mainly planthoppers, rice leafrollers and rice stem borers, with an area of ​​224 million mu; diseases were mainly rice blast and rice sheath blight, with an area of ​​90 million mu. Insect pests Planthopper in southern China, south and southwest of the rice area of ​​emphasis to occur, the middle and lower reaches of the Yangtze River rice