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蓆草疫病的病原是莎草疫霉菌(Phytophthora cyperi)。此病在广西普遍发生,为害蓆草苞叶、茎秆和叶片. 生理测定表明:在饱和湿度条件下,孢子囊形成的适温范围10—30℃,最适温度15—25℃。孢子囊萌发游动孢子的适温也是10—30℃,最适温度为25℃。卵孢子萌发产生孢子囊和释放游动孢子的适宜温度是22—28℃。药剂防治表明:瑞毒霉和甲霜灵是防治此病的特效药,防效达80—90%。
The pathogen of grass blast is Phytophthora cyperi. The disease commonly occurs in Guangxi as the herbaceous leaves, stems and leaves of paulownia.Physiological measurements show that the suitable temperature range of sporangium formation is 10-30 ℃ and the optimum temperature is 15-25 ℃ under the conditions of saturated humidity. Spore germination zoospore appropriate temperature is 10-30 ℃, the optimum temperature is 25 ℃. The optimum temperature for the spore germination to produce sporocysts and release zoospores is 22-28 ° C. Pharmacy prevention and treatment showed that: ruben mold and metalaxyl cure is the cure for the disease, the effect of up to 80-90%.