辣椒苗期病害主要有:立枯病、猝倒病、灰霉病、早疫病和沤根。 立枯病 病菌茎基变褐,当病斑绕茎一周时,幼苗逐渐枯死,但不呈摔倒状。病部初生椭圆形暗褐色斑,具同心轮纹及淡褐色蛛丝状霉,是本病与猝倒病区别的重要特征。 猝倒病 常见的症状有烂种、死苗和猝倒三种。猝倒是在幼茎基部发生水浸状暗斑,逐渐缢缩呈细线状, Pepper seedling diseases are: damping-off, damping off disease, gray mold, early blight and gall root. Rhizoctonia solani brownish base, when the spots around the stem a week, the seedlings gradually withered, but did not fall like. Elliptical dark brown lesions of the Ministry of disease spot, with concentric lines and hazel spider filamentous mold, is the important characteristics of the disease and damping off disease. Cataplexy common symptoms are rotten, dead seedlings and catapults three. Cataplasm cataplasm occurred in the base of young stem-like dark spots, gradually narrowed to a thin line,