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立枯病诊断:亚麻立枯多苗期,主要危害在茎基。诊断茎基一边看,淡黄病斑先出现,后变红褐凹腐烂,严重茎基四边展,病部细缩易折倒,地上叶片黄萎蔫。病轻地上症不显,直根出现褐凹陷,条件适宜病症显,病部褐色菌核产。低温阴雨土质黏,亚麻立枯易感染。防治:严禁连作重茬免,禾本作物轮三年。雨后松土破板结,培育壮苗苗不衰。病初喷施利克菌,间隔七天喷均匀。利克菌(甲基立枯磷)20%乳油,病初1200倍液喷淋。黑斑病诊断:苗期成株均危害,苗期染病根变褐。
Blight diagnosis: linen licorice seedling stage, the main hazard in the stem base. Diagnosis of stem base side of the look, yellow lesions appear first, after the red brown decay, severe stem-based four sides of the exhibition, the Department of thin and easy to fold down, the ground leaves yellow wilting. Slight disease of the disease is not significant, straight roots appear brown sag, conditions suitable for disease was significant, the Ministry of brown mold nuclear production. Low-temperature overcast soil sticky, linen legislation borne easily infected. Prevention: No crop continuous cropping crop, crop crop three years. Loosen soil after breaking the knots, nurturing strong Miao Miao not bad. The disease early spray Shi Lick bacteria, spray evenly seven days apart. Lactobacillus (methyl paraquat) 20% EC, the disease early 1200 times spray. Black spot diagnosis: adult seedlings are harmful, seedling infected root brown.