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麦种蝇〔HyIemyia coarctata(Fallen)〕又叫瘦腹种蝇、麦地种蝇、麦根蛆,是甘肃省秦岭以北地区冬、春小麦的主要地下害虫之一。据袁生耀等研究报告,麦种蝇在陇东冬麦区一年发生一代:成虫6月份羽化,8月中下旬交配,9月份冬小麦播种前后在土中产卵,以卵越冬;卵在次年3月份冬小麦返青期开始孵化;幼虫为害返青后的麦苗嫩茎,造成心叶枯死。春麦区小麦出苗后即开始受害,4、5月份麦田陆续出现枯心苗。近年来,麦种蝇发生危害程度有加重趋势。庄浪县农技站调查,返青期冬小麦每100株有幼虫8.4头,枯心率
Hylemyia coarctata (Fallen)] also known as lean flies, corn germ, wheat germ maggot, is the northwest of Qinling Mountains in Gansu Province, winter and spring wheat one of the major underground pests. According to Yuan Shengyao and other research reports, wheat germ fly in the winter east of Gansu one generation a year: adult emergence in June, mating in mid-August, before and after September winter wheat sowing in the soil spawning, eggs overwintering; eggs in the following year In March, the winter wheat regreening began to hatch; young larvae turned green after the young sprouts, resulting in dead heart leaf. The wheat in the spring wheat area began to suffer after it emerged. In April and May, wheat fields started to witness dry seedlings. In recent years, the occurrence of wheat germ flies tend to increase. Zhuanglang County Agricultural Technology Station survey, greening winter wheat per 100 lines have 8.4 larvae, heart rate