温室韭菜根蛆的防治危害温室韭菜的根蛆是葱蝇的幼虫，它是寡食性害虫，它以危害韭菜、蒜和葱为主，其防治方法是：一、在冬春温室的韭菜生长期，发生根蛆时，可用８０％的敌敌畏乳油１２００倍液，或用４０％的乐果乳剂１５００倍液，均匀地喷洒到韭菜的根部，杀灭根蛆效... Greenhouse leek root maggot prevention and control hazards Greenhouse leek root maggots are onion fly larvae, it is an omnivore pest, which harm the leeks, garlic and green onions, and its prevention and treatment are: First, in the spring and winter greenhouse leek growth period , When the root maggots occur, you can use 80% dichlorvos EC 1200 times, or 40% dimethoate 1500 times, evenly sprayed to the roots of chives, kill the root maggot effect ...