大蒜是蔬菜中四辣品种之一,为我国广大人民所喜爱。在大蒜的生产中,常遭受蒜蛆的为害,使产量受到很大影响。根据过去的调查,蒜蛆的发生率常在30％左右,严重地块可达70％以上。近年来,京郊的大蒜栽培逐步向远郊区发展,远郊栽培面积达近郊两倍之多。由于远郊栽培多实行粮蒜间套作、倒茬,并推广山东经验,改为秋播(9月下旬播种),因此蒜蛆为害程度较轻,一般发生率在15—20％左右。蒜 Garlic is one of the four spicy varieties of vegetables, loved by the majority of our people. In the production of garlic, garlic is often the victim of garlic, so that production has been greatly affected. According to the past survey, the incidence of garlic maggot often about 30%, a serious block up to 70%. In recent years, the garlic cultivation in the suburbs of Beijing has gradually developed to the outskirts and the suburban cultivation area has tripled in the suburbs. As the outskirts of cultivation and practice of intercropping garlic, stubble, and promote Shandong experience, autumn planting (late September sowing), so less susceptible to garlic maggot, the general incidence of about 15-20%. garlic