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危害大葱、大蒜、韭菜等根部(鳞茎)的主要害虫是葱蝇幼虫,俗称“根蛆”、“地蛆”。那么,怎么来防治葱蒜地蛆呢?施肥时要将有机肥料充分腐熟,并深施覆土,或多施草木灰肥(最好施在植株根部周围),以避葱蝇,减少其产卵的机会。在栽植鳞茎类蔬菜种苗时,可在地蛆入鳞茎初期,用40%乐果800-1000倍液灌根灭杀。平时发现枯萎的葱蒜植株,应及时挖除,并将藏于鳞茎中的地蛆杀死,以免危害其他植株。
Harm the green onions, garlic, leeks and other roots (bulbs) of the main pests are onion fly larvae, commonly known as “root maggots ”, “maggots ”. So, how to control onion and garlic maggot it? Fertilizing the organic fertilizer should be fully matured, and deep overburden, or more grass ash fertilizer (preferably applied to the plant roots around) to avoid the onion fly, reducing their chances of spawning . When planting bulbs of vegetable seedlings, the maggots can be bulbs in the early stage, with 40% dimethoate 800-1000 times to kill the root irrigation. Usually found withered garlic plants shall be promptly dug, and will be hidden in the bulbs in the maggot to kill, so as not to harm other plants.