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近年来,胶东地区保护地黄瓜的种植面积不断扩大,由于连年种植,一些叶面病害普遍发生,尤其是2009年,1～3月份气温不稳,昼夜温差大,黄瓜靶斑病普遍发生,一些农民不能正确识别,误当做细菌性角斑病防治,延误了最佳防治适期,造成了较大损失,甚至毁灭性为害。笔者对保护地黄瓜常见叶面病害的症状识别、发生原因及防治措施进行了调查研究和试验。现总结如下:
In recent years, the planting area of protected cucumber in Jiaodong area has been expanding continuously. Due to the successive planting, some foliar diseases occur frequently. Especially in 2009 and January ~ March, the temperature is not stable, the temperature difference between day and night is big, cucumber target spot is common, Farmers can not correctly identify, mistakenly as bacterial angular leaf disease prevention and control, delay the best control of fitness, resulting in greater losses, or even devastating damage. The author of the protection of cucumber common foliar disease symptoms identification, causes and prevention measures were investigated and tested. Now summarized as follows: