在冬春连续阴雨有利粘虫大发生时,田间虫口是普发性的。但在一般年份,粘虫只集中在一定田块为害,人们通常叫“粘虫发生带”。究竟“发生带”与“非发生带”的条件有些什么不同?从调查中得知,厩肥施用技术与粘虫发生量有关:未腐熟厩肥面施的每平方市尺有粘虫2头左右,腐熟厩肥面施的每平方市尺1头左右,不用厩肥盖籽面施的和厩肥深施的均未查到虫口。说明厩肥盖籽面施的比不施或深施的虫口要大,未腐熟的又比腐熟的虫口多。厩肥面施虫多的原因是:本地的厩肥是用稻草垫猪牛栏后即施于田间。在麦籽撒播 In winter and spring continuous cloudy rainy armyworm occurs, field insect mouth is a common disease. However, in general years, armyworms are only concentrated in certain plots of damage, people are often called “armyworm occurrence zone.” What is the difference between “occurring zone” and “non-occurrence zone”? From the survey, we know that the application of manure is related to the occurrence of armyworm. There are about 2 armyworms per sq. Composting of manure surface treatment per square foot around 1 foot, no manure covered with seed surface facilities and manure deep facilities were not found in the mouth. Description of manure covered with seed than Shi Shi or deep application of insects to be larger, not decomposed and more than the maturity of the insect population. The reason that the manure is applied to the weeds is that the local manure is applied to the fields after being padded with straw bars. Broadcast in the wheat seeds