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香河县种植韭菜历史悠久,远销省内外,主要集中在五百户和钳屯两个乡镇,面积约3.5万亩。韭菜具有补肾、健胃、提神、止汗固涩等功效。韭菜的主要营养成分有维生素C、维生素B1、维生素B2、尼克酸、胡萝卜素、碳水化合物及矿物质。北方韭菜的栽培面积比较广泛,耐寒力强,可周年生产,但尤以早春生产品质最佳。一、韭蛆的发生规律及危害特点韭蛆幼虫聚集于地下危害,钻食韭菜的假茎和鳞茎。韭菜受害后地上叶片瘦弱,枯黄,萎蔫
Xianghe County, planting leek has a long history, sold inside and outside the province, mainly in two hundred towns and two clamp tong, an area of about 35000 acres. Leek with kidney, stomach, refreshing, anti-perspiration Guse other effects. Leek main nutrients are vitamin C, vitamin B1, vitamin B2, niacin, carotene, carbohydrates and minerals. North chives cultivation area is relatively broad, cold and strong, annual production, but especially in early spring production of the best quality. First, the occurrence of leek maggot rules and characteristics of hazards Leek maggots larvae gathered in the ground harm, drilling leeks of false stems and bulbs. After leek victim leaves thin, yellow, wilting