去冬今春气温偏高,加重了大蒜病虫害的发生为害,有利于蒜蛆的越冬及春季为害。建议蒜农对蒜蛆的防治工作更应抓紧抓早。为害症状:蒜蛆以幼虫蛀食蒜鳞茎,引起鳞茎腐烂,地上部叶片表现枯黄、萎焉,甚至死亡。拔出受害株可发现蛆蛹,被害蒜皮呈黄褐色腐烂,蒜头被幼虫钻蛀成孔洞,残缺不全,蒜瓣裸露、炸裂,并伴有恶臭气味。被害株易被拔出并拔断。发生特点:蒜蛆在冬前即可造成为害,入冬后化蛹越冬,翌年3月开始由蛹羽化为成虫。成虫将卵产于蒜根周围土缝或土块下或叶鞘内,卵经5～7天即可孵化为幼虫爬 To winter and spring temperatures high, aggravating the occurrence of garlic pests and diseases, garlic and maggot conducive to the winter and spring damage. Suggest that garlic farmers garlic garlic prevention and treatment should pay close attention to catch early. Harmful symptoms: garlic maggot larvae eaten garlic bulbs, causing bulb decay, the performance of the leaves above the ground yellow, wilting, and even death. Pull out the victim strains can be found maggot pupae, Garlic skin was brown rot, garlic was larvae drilled into holes, incomplete, garlic flap exposed, burst, accompanied by foul smell. Victims were easily unplugged and unplugged. Occurred characteristics: Garlic maggot can cause damage in winter before winter, pupal wintering, the following year in March began to emerge from the adult pupae. Adult eggs will be produced around the root of soil in garlic or soil block or leaf sheath, the eggs by 5 to 7 days to hatch larvae climb