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目前,华南、江南大部早稻处于抽穗-灌浆期;西南中稻区大部处于分蘖-拔节阶段;长江中下游早稻处于分蘖盛期-拔节期,中稻陆续栽插。当前,“两迁”害虫在华南和西南中南部稻区已偏重以上程度发生,江南稻区虫口密度进入激增期,西南北部和长江中下游灯下田间虫量逐渐增加。稻瘟病在华南和西南中北部扩展较快,华南局部稻区穗颈瘟发生严重;长江中下游灰飞虱经防治后田间虫量有所
At present, most of the early rice in South China and South China are in heading-filling stage, most of the middle-rice in southwest China are in the tillering-jointing stage, while the middle and lower reaches of Yangtze River in early tillering stage and jointing stage. At present, pests in the "southwestern and southwestern central and southern parts of China have been more or less prevalent, pest population density in the southern part of the Yangtze River has entered a period of exuberant growth, and insect pests in the northwestern part of Southwest China and the middle and lower reaches of the Yangtze River have been gradually increasing. Rice blast expanded rapidly in south China and north-central Southwest China, while severe panicle blast occurred in some rice areas in southern China. After the control of the planthopper,