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北安市位于黑龙江省北部(47°35′～48°33′N,126°16′～127°53′E)。近年来,由于大豆连作面积不断增加,大豆病虫害呈逐年加重趋势。其中大豆根潜蝇是危害较重的害虫之一。由于根潜蝇的发生常引起并发根腐病,更加重了其危害性。因此,掌握大豆根潜蝇发生规律和防治办法对指导大豆生产有重要现实意义。1 发生和危害通过2001～2003年定点观测,大豆根潜蝇在本地一年发生一代,以蛹在大豆根部受害处或其附近土中越冬。
Bei’an City is located in the northern Heilongjiang Province (47 ° 35 ’~ 48 ° 33’N, 126 ° 16’ ~ 127 ° 53’E). In recent years, due to continuous increase of soybean continuous cropping, soybean pests and diseases are increasing year by year. Soybean leaf flies are one of the hardest pests. Due to the occurrence of root locust fry often caused by concurrent root rot, more of its harmfulness. Therefore, it is of great practical significance to master the law of occurrence and control of soybean leafminer to guide the soybean production. 1 Occurrence and Harmness Through the fixed observation from 2001 to 2003, the soybean leafminer was born in the local one year, and took the pupa to win the soil in or near the soybean roots.