麦水蝇Hydrellia griseola(Fallén)是我国为害小麦的主要水蝇。原有记载,青海省无此虫分布,事实上该省海南州及民和、化隆等县均有分布。而且,在海南州近年来为害麦类较重,1980年大发生,州农科所小麦严重受害。平均被害率达95％,其千粒重减少9.87克。作者于8月10日至12日在原种试验地对供试的58个春小麦品种的受害情况逐个进行了比较观察,每个品种调查和分析了500茎,结果如下。 一、春小麦品种对麦水蝇抗性的差别 Hydrellia griseola (Fallén) is the main waterflies that harm wheat in our country. The original records, no such insects in Qinghai Province distribution, in fact, the province of Hainan and Minhe, Hualong and other counties are distributed. Moreover, in Hainan Province, the harms of wheat were heavier in recent years, and in 1980, the state agricultural wheat suffered serious damage. The average damage rate of 95%, the thousand grain weight to reduce 9.87 grams. From August 10 to August 12, the authors compared the damage of 58 spring wheat varieties tested on the original test site one by one, and investigated and analyzed 500 stems for each variety. The results are as follows. First, the spring wheat varieties resistant to the skater resistance differences