稀点雪灯蛾是发生在麦田内的一种害虫。1985年以前,在东阿县发生轻微,又发生在小麦生长后期,未造成显著危害。近5年来,有逐年加重的趋势,随着麦田间作套种面积的逐步扩大,对麦套棉花、麦套玉米等构成严重危害。据调查,一般发生地块百株有虫10～30头,被害株率30%以上,严重影响了麦套作物的一播全苗和壮苗早发;轻者造成缺苗断垄,重者重新翻种。1988～1990年全县每年发生面积都在8万亩以上,成为麦套作物苗期重要防治对象。发生危害特点此虫在当地以蛹在土中越冬,翌年5月上中旬开始羽化产卵,卵产在小麦叶和杂草上,5月下～6月初卵孵化,6月上中旬是 A snowdrop moth is a pest that occurs in a wheat field. Prior to 1985, minor occurrences occurred in Donga County and again in the later stages of wheat growth without significant harm. In the past five years, there is a trend of increasing year by year. With the gradual expansion of the intercropping area in the field, wheat, corn and other sets of corn are seriously endangered. According to the survey, there are generally 10 plots of land with 10 to 30 insects and more than 30% of victimized plants, which have seriously affected the seeding of broadleaf crops and the early onset of strong seedlings. Re-seed. From 1988 to 1990, the annual area of ​​the county was over 80,000 mu, making it an important control target for wheat crop seedling stage. Occurred hazardous characteristics of this insect in the local pupa in the soil overwintering, in mid-May the following year began to oviposit mid-upper, the egg production in wheat leaves and weeds, in May ~ early June egg hatch, mid-June is