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近期持续高温多雨,导致稻田普遍积水较深,水稻基腐病和叶鞘腐败病的发生较为严重。现将这两种病害的田间症状与防治方法总结如下。一、水稻基腐病。该病主要为害水稻根节部和茎基部。水稻细菌性基腐病的独特症状是病株根节变为褐色或深褐色腐烂,有别于细菌性褐条病心腐型、白叶枯病急性凋萎型及螟害枯心苗等。防治该病以施杀菌农药为主,兼增施磷钾肥提高植株抗病性。可用200ppm的农用链霉素或农用抗菌素120(嘧啶核苷类抗菌素)800~1200倍液进行叶面喷雾,也可
Recently sustained high temperature and rainy weather, resulting in widespread deep water paddy fields, rice rot and leaf sheath rot disease is more serious. Now these two diseases of the field symptoms and prevention methods are summarized below. First, rice-based rot. The disease mainly affects rice root and stem base. The peculiar symptom of bacterial bacterial rot of rice is that the diseased roots turn into brown or dark brown decay, which is different from bacterial brown rust, rot withered leaf blight and borer seedling. Prevention and treatment of the disease to kill bactericidal pesticides, and the increase of phosphorus and potassium to improve plant disease resistance. Can be 200ppm of agricultural streptomycin or agricultural antibiotics 120 (pyrimidine nucleoside antibiotics) 800 ~ 1200 times the foliar spray, but also