今年农作物重大病虫害发生态势

• 出 处: 农民文摘
• 发表日期: 2014年04期
• 关键词: 稻纵卷叶螟 稻飞虱 大发生 虫源基数 农作物 区中 东北 水稻螟虫 夜蛾 沿海地区

【水稻“两迁”害虫】稻飞虱在华南、西南东部、江南、长江中下游等南方大部稻区偏重至大发生,西南西部和江淮稻区中等发生,发生面积4亿亩次;稻纵卷叶螟在华南、江南、西南东部和长江中下游稻区偏重发生,西南西部、江淮和华南南部等稻区中等发生,发生面积2.7亿亩次。

Rice planthoppers migrated pest mainly in southern China, eastern Southwest China, southern Yangtze River and middle and lower reaches of the Yangtze River, while most of the southern part of the Yangtze River occurred mid-southwest and Jianghuai rice areas with an area of ​​400 million mu ; Rice leaf roller in southern China, southern, eastern and southern regions of the Yangtze River and the lower reaches of rice heavily occurred in western and western South China, JAC and southern South China and other rice occurred moderately, an area of ​​270 million acre.