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大蒜地蛆又叫种蝇,是大蒜的主要害虫,秋播大蒜冬前主要受二代幼虫危害,造成大蒜死苗,春季主要受一代幼虫危害,造成蒜头裂皮、腐烂,使蒜头产量和品质降低,是大蒜生产上亟待解决的问题。地蛆除危害大蒜外,还危害大葱、韭菜等百合科蔬菜。1发生特点1.1在商丘地区一年发生两代,春播蒜受一代幼虫危害,蒜苗受害后大多数枯死;秋播蒜冬前受二代幼虫危害,主要蛀食磷茎和茎盘,以一代蛹
Garlic maggot, also known as the species of flies, is the main pest of garlic, autumn sowing garlic is mainly affected by the second-generation larvae before winter, resulting in dead garlic seedlings, the spring is mainly affected by a generation of larvae, causing garlic cracking, decay, garlic yield and quality , Is the garlic production problems to be solved. Maggot in addition to harmful garlic, but also endanger green onions, leeks and other Liliaceae vegetables. 1 Occurrence characteristics 1.1 In Shangqiu area two generations a year, spring sowing garlic by a generation of larvae damage, most of the dead garlic seedlings dead; autumn sowing garlic by the second-generation larvae damage, the main eaten phosphorus stems and stems to a generation of pupae