目前,华南、江南和长江中游早稻大部分处于幼穗分化至孕穗期;西南地区中稻,贵州处于栽插至返青期,其他大部进入分蘖期;长江中下游及江淮单季稻大部分处于秧苗期。受前期低温、干旱和境外虫源地水稻生育期推迟、病虫发生基数偏低等因素影响,当前水稻病虫发生总体偏迟,程度轻于上年。 At present, most of the early rice in South China, the Yangtze River and the middle reaches of the Yangtze River are mostly young panicle to booting panicle; middle rice and Guizhou in southwestern China are in the period of planting and returning to green, most of them enter the tillering stage; most of the middle and lower reaches of the Yangtze River and Jianghuai single crop are in the seedling stage. Affected by such factors as the postponed growth period of rice in low temperature, arid and overseas areas, the low base incidence of pests and diseases and other factors, the overall incidence of rice pests and diseases is now less than the previous year.