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四、辣椒疫病 症状识别 根和根颈部受害后呈水渍状软腐;基部发病,出现黑色斑块;叶片发病,先从叶尖开始,如开水烫伤,病斑不定形,墨绿色,遇晴天病叶便干枯皱缩果实得病后变灰褐色。一般成株期植株发病后,叶片白天萎蔫,早晚可恢复,数日后整株死亡,根茎部变褐色,湿度大时病部覆盖白色霉层。 防治方法 ①避免与瓜类、茄果类蔬菜连作,可与十字花科、豆科蔬菜实行3年轮作。②实行高畦栽培,搞好清沟排水,防止湿度过大,发现病株及时拔除。③药
Fourth, the identification of symptoms of pepper epidemic root and root neck after waterlogging-like soft rot; the incidence of the base, there are black plaques; leaf disease, beginning with the tip, such as boiled water, spots unshaped, dark green, in case of Sunny leaves sick dry shrinking fruit turned gray-brown. General plant stage after onset, the leaves wilting day and night, sooner or later to resume, a few days after the death of the entire plant, brown rhizome Department of Humidity when the disease covered white mold layer. Prevention methods ① avoid with melons, eggplant vegetables even crop, with cruciferous, legumes vegetables for three years rotation. ② Implementation of high-tillage cultivation, do a good job ditch drainage, to prevent excessive humidity and found diseased plants promptly removed. ③ medicine