草莓根腐病是当前草莓生产园区毁灭性病害,病势来得猛,损失惨重,目前还未有特效药物能防治此病。根腐病主要集中在低洼地块。被感染的植株,真菌从根的顶端浸入后,向根心发展,根的中心柱呈红色或淡红色,然后开始变黑褐色而腐烂,地上部由基部叶边缘开始变为红褐色,逐渐凋萎枯死。其病原菌是根腐病疫霉菌,喜低温,由病株、土壤、水和农具带菌传播。当地温在20℃以下,卵孢子发芽侵入草莓根部;地温在10℃左右,土壤湿度较大则此病发生严重;地温在25℃以上。即使土壤水分大,此病的发生也较轻。防治应从以下几点着手: Strawberry root rot is the current strawberry production park devastating disease, the disease was fierce, heavy losses, there is no specific drug to prevent the disease. Root rot is mainly concentrated in low-lying land. Infected plants, fungi from the top of the root into the root after the development of the root center of the column was red or reddish, and then began to turn brown and decay, the ground from the base of the leaf edge began to red brown, and gradually withered Withered dead. The pathogen is the root rot Phytophthora, like low temperature, by the diseased plants, soil, water and agricultural tools carrier transmission. When the local temperature is below 20 ℃, oospores germinate and invade the root of strawberry; the soil temperature is about 10 ℃, and the soil moisture is more serious; the ground temperature is above 25 ℃. Even though soil moisture is high, the incidence of this disease is low. Prevention should start from the following points: