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对黄瓜棒孢叶斑病(褐斑病)在山东省的为害、症状特点、生物学特性以及病原菌的鉴定进行了研究。根据病原菌的形态特征和致病性,并结合其rDNAITS区域的序列分析,将引起山东省黄瓜棒孢叶斑病的病原菌鉴定为多主棒孢霉Corynespora cassiicola(Berk&Curt)Wei.。室内测定和田间防治试验结果表明,43%戊唑醇悬浮剂和33.5%喹啉铜悬浮剂对黄瓜棒孢叶斑病的防治效果可达90.49%。
The damage, symptom characteristics, biological characteristics and pathogen identification of Cucumber leaf spot (Cucumber leaf spot) in Shandong Province were studied. According to the morphological characteristics and pathogenicity of pathogenic bacteria, and combined with the sequence analysis of its rDNAITS region, the pathogen causing Cucumber leaf spot cucumber in Shandong Province was identified as Corynespora cassiicola (Berk & Curt) Wei. The results of field test and field control showed that the control effect of 43% tebuconazole and 33.5% copper quinoline on Cucumber leaf spot cucumber was up to 90.49%.