根蛆是对危害大蒜等作物的双翅目害虫幼虫的统称。根蛆一般聚集在大蒜根及鳞茎等地下部分,主要以取食蒜根造成残缺不全或钻入蒜瓣内取食形成孔洞等方式为害。严重时,蒜肉被蛀食一空,且受害部位呈腐烂状。被害蒜株地上部分矮小,叶片发黄,严重时植株死亡。根据大蒜根蛆的发生规律和为害特点,建议采取物理防治和化学防治相结合的综合防治策略。一、物理防治1.清除植株残体。根蛆对大蒜植株病残体,尤其是腐烂的大蒜植株,有较强趋性。因此,在收获大蒜时,应彻底清除田间、地头、路 The root maggot is a collective term for larvae of Diptera pests that endanger crops such as garlic. Root maggots generally gathered in the garlic root and bulbs and other underground parts, mainly to take garlic caused incomplete or into the garlic clover feeding to form holes and other damage. In severe cases, garlic is eaten up, and the damaged parts are decayed. Victims of garlic on the ground part of the dwarf, leaves yellow, severe plant death. According to garlic root maggot incidence and damage characteristics, it is recommended to take the combination of physical and chemical prevention and control of a comprehensive prevention and control strategy. First, the physical control 1. Removal of plant debris. Root maggots on the garlic plant disease residues, especially rotting garlic plants, have a more aggressive. Therefore, when harvesting garlic, the field, the ground and the road should be completely eliminated