一、为害症状1.美洲斑潜蝇。成、幼虫均可为害。雌成虫飞翔,把植物叶片刺伤,进行取食和产卵,幼虫潜入叶片和叶柄为害,产生不规则蛇形白色虫道,叶绿素被破坏,影响光合作用,受害重的叶片脱落,造成花芽、果实被灼伤,严重的造成毁苗。美洲斑潜蝇发生初期虫道呈不规则线状伸展,虫道 First, the symptoms of harm 1. American Leafminer fly. Into, larvae can be harmful. Female adults fly, plant leaves stabbed, feeding and spawning, larvae infested leaves and petiole damage, resulting in irregular serpentine white worm, chlorophyll is destroyed, affecting photosynthesis, the victim leaves off, resulting in flower buds, The fruit was burned, causing severe destruction of seedlings. In the early stage of occurrence, the American larvae showed irregular linear extension and insects