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我省水稻螟虫有三化螟、二化螟、大螟、褐边螟四种,而以三化螟为害最重。三化螟在我省分布虽很普通,但其为害程度却有輕重之分,并且是輕的地区年年輕,重的地区年年重。蕪湖、安庆、滁县三个专区受害較重,以蕪湖为最重;徽州、阜阳、宿县、六安四个专区受害較輕,以徽州、阜阳两专区为最輕,称为无螟害地区。安庆专区过去螟害严重,但自1954年起,部份地区螟害逐年下降,成为无螟害地区,到1961年螟害又上升,現又成为重灾区。国內学者对三化螟防治研究,大体上分三条路綫进行:第一是虫口路綫,遵循这条路綫研究防治螟害的学者認为,螟害輕重,
Rice borers in our province have three Borer, Chilo suppressalis, Sesamia inferens, Borer borer four kinds, and the most affected by the three borer. Borer dispersal in our province, though very ordinary, but its degree of harm has severity, and is light areas in young, heavy areas every year. Wuhu, Anqing, Chu County three districts heavier victims, Wuhu is the heaviest; Huizhou, Fuyang, Suxian, Lu’an four prefectures suffer less, with Huizhou, Fuyang two areas as the lightest, known as no stem damage area. In the past, the Anqing area was severely damaged. However, since 1954, the stem borers in some areas have been declining year by year, making it a non-stem borer area. By 1961, the stem borer rose again and became the hardest hit. Domestic scholars on the prevention and treatment of the stem borer, in general, divided into three routes: The first is the route of the mouth, follow this route to study the prevention and treatment of borer scholars believe that the pest damage,