韭菜迟眼覃蚊又叫韭蛆,主要危害韭菜、大葱和大蒜。以韭菜受害最为严重,幼虫群居在寄主地下部的鳞茎和嫩茎部危害。初孵幼虫首先取食韭菜叶鞘基部的嫩茎上端,春秋两季主要危害韭菜的嫩茎,使根基腐烂,地上部分叶片枯黄而死;夏季高温时则向下移动,蛀入鳞茎取食,严重时造成鳞茎腐烂,整墩枯死。防治方法①进行冬灌或春灌菜地,可消灭部分幼虫,加入适量农药效果更佳。铲出韭根周围的表土,晒根并晒土,降低韭根及周围 Leek late Qin mosquito also known as leek maggots, the main hazards of leeks, green onions and garlic. The most serious damage to leeks, larvae live in the host underground bulbs and tender stem harm. The newly hatched larvae first fed the upper end of the tender stems at the base of the leaf sheaths of chives. The spring and autumn harms the tender stems of the chives, causing the roots to decay. The leaves of the aboveground parts are withered yellow and die. When the summer high temperatures move downward, When the bulb decay, the whole pier died. Control methods ① for winter irrigation or spring vegetable, can eliminate some larvae, adding the right amount of pesticide better. Shovel allotropes around the roots, roots and soil, lower leek roots and around