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2010年以来,河南省中牟县保护地草莓蛇眼病发生较为严重,发病棚率20%~30%,一般种植年限短的棚室发病株率5%~10%,种植年限长的发病株率高达50%~90%。该病具有为害严重、传染性强、发病初期不易发现、难以控制等特点,对中牟县保护地草莓生产造成极大威胁。笔者通过两年的田间观察和小区试验,基本上掌握了保护地草莓蛇眼病的发病症状、传播途径和发病条件,并提出了综合防治措施。现介绍如下。
Since 2010, the occurrence of snake-eye disease in strawberry grasslands in Zhongmou County of Henan Province has been relatively serious with the incidence of shedding rate ranging from 20% to 30%. The incidence rate of shedding plants with short planting season is 5% -10% 50% ~ 90%. The disease has a serious harm, highly contagious, early onset is not easy to find, difficult to control and other characteristics of the protected area strawberry production in Zhongmu County pose a great threat. Through two years of field observation and plot test, the author basically grasped the symptom, transmission route and onset condition of strawberry snake eye disease in protected area and put forward the comprehensive prevention and cure measures. Now introduced as follows.