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一、发生及为害 豆杆蝇(Agromyza phaseoli Coquillett)在鲁西南地区发生和为害已有很长历史,是大豆上的一大害虫,比大豆造桥虫发生普遍。据调查菏泽、曹县、成武、定陶、单县、巨野、郓城、梁山、鄄城、东明等县均有发生,除大豆外还为害绿豆、小豆、豇豆、菜豆等。 据外地报导,如苗期发生豆杆蝇,会造成大量心苗枯死、缺苗、断垅、以致重播改种或大幅度减产。在鲁西南地区虽被有发现大量心苗枯死,但大豆年年产量
First, the occurrence and damage Agrotis aeruginosa (Agromyza phaseoli Coquillett) occurred in the southwestern region and has a long history of harm, is a major pest on soybean, compared with soybean bridge parasite widespread. According to the investigation, Heze, Caoxian, Chengwu, Dingtao, Shanxian, Juye, Gaocheng, Liangshan, Juancheng, Dongming and other counties have occurred. In addition to soybeans, they also harmed mung beans, adzuki beans, cowpeas and beans. According to field reports, such as seedling occurrence of flies, will cause a lot of cardiocarcus dead, lack of seedlings, broken 垅, resulting in replanting or a substantial cut. Although in the southwestern region was found to have a lot of heart seedlings died, but annual soybean production