论文部分内容阅读
近日,安徽省植保总站召集全省稻、棉主产区的测报防治技干,根据各地调查资料对该省夏秋季作物主要病虫发生趋势进行了认真地分析预测,认为今年该省水稻稻飞虱、二化螟、三化螟及棉铃虫害将严重发生。稻飞虱:全省五(3)代大部稻区中等至中等偏重,局部大发生。其依据,一是四(2)代稻飞虱迁入期偏早,迁入量偏大,田间虫量偏高;二是受春夏持续干旱影响,该省大部稻区水稻栽插期拉长,生育期不整齐,加之结构调整,优质中籼杂交稻及粳、糯稻品种种植面积扩大,有利稻飞虱发生为害。在稻飞虱防治工作中,各地要继续大力推广使用大功臣
Recently, Anhui Plant Protection Terminals convened the province’s rice and cotton-producing areas of the reporting prevention and treatment of technical personnel, according to the survey data throughout the province in summer and autumn major crop pests and diseases occurred in a serious analysis and forecast that the province this year, rice and rice fly Lice, rice stem borer, rice stem borer and cotton bollworm will occur seriously. Planthopper: The province five (3) on behalf of most of the rice medium to medium emphasis, large local occur. On the basis of that, firstly, four (2) generations of rice planthoppers migrated earlier and moved in larger quantities with higher insect populations in the field; secondly, due to the continuous drought in spring and summer, Elongated, irregular growth period, combined with structural adjustment, high-quality hybrid rice and japonica rice, glutinous rice varieties planted area expansion, is conducive to the occurrence of planthoppers. In the prevention and control of planthoppers, all localities should continue to vigorously promote the use of big hero