近日,笔者从全国农业技术推广服务中心获悉,当前,华南、江南、西南早稻陆续进入破口抽穗期,江南、长江中下游、西南大部中稻处于返青分蘖期。截至目前,水稻病虫害总体中等至偏重发生。其中,水稻螟虫发生程度重于或接近上年同期,“两迁”害虫、常发性病害等发生危害期有所推迟,程度轻于上年同期。近期随着南方稻区降水增多,水稻“两迁”害虫大量迁入,田间虫量上升较快, Recently, the author learned from the National Agricultural Technology Extension Service Center that at present, south China, southern China and southwest China have entered the breach heading stage successively. In the middle and lower reaches of the Yangtze River and the middle and lower reaches of the Yangtze River, most of the middle and south-west rice plants are in the turning-back tillering stage. As of now, rice pests and diseases generally moderate to biased occurrence. Among them, the incidence of rice stem borer heavier than or close to the same period of previous year, “two moved ” pests, and other diseases caused by the detriment of a delay, to a lesser extent than the same period last year. Recently, with the increase of precipitation in the southern rice area, a large number of pests migrated in paddy rice and moved rapidly in the field,