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本文对沧州枣的主要品种金丝小枣、冬枣、梨枣果实病害危害症状、影响因素及防治进行了系统研究,结果表明,金丝小枣主要病害为浆烂果病、黑疔病、褐皮病3种病害,病原菌包括梭壳孢菌、胶孢炭疽菌、细极链格孢和链格孢。5月中旬侵染枝条和叶片,5月下旬侵染枣花,7月上旬侵染枣果;冬枣主要病害为黑斑病、软腐病、溃疡病、苦痘病和缩果病5种病害,病原菌为细极链格孢和梭壳孢菌。5月下旬侵染枝条和枣叶,6月上旬侵染枣花,7月侵染枣果;梨枣主要病害为铁皮病和缩果病,病原菌为链格孢、细极链格孢和橄榄色盾壳霉,5月下旬侵染枝条和枣叶,6月上旬开始侵染枣花,7月中旬侵染枣果。
In this paper, the main disease of jujube in Cangzhou jujube, jujube, pear jujube fruit disease hazard symptoms, influencing factors and prevention and control of a systematic study showed that the main diseases of jujube golden brown pulp rot disease, black rot disease, brown Dermatosis 3 kinds of diseases, pathogenic bacteria, including Schisandra spore, Colletotrichum gloeosporioides, Alternaria and Alternaria alternaria. May mid-May affected branches and leaves, jujube invaded in late May, jujube fruit infested in early July; jujube main diseases of black spot, soft rot, ulcer disease, bitter pox disease and fruit shrinkage disease 5 kinds of diseases , The pathogen is very fine Alternaria and Saccharomyces cerevisiae. In late May, branches and jujube leaves were invaded, jujube flowers were infested in early June and jujube fruits were infested in July. The main diseases of jujube are tin skin disease and fruit shrinkage disease. The pathogenic bacteria are Alternaria alternata, Color shield mold mildew, infestation of branches and jujube leaves in late May, jujube began to infect in early June, jujube fruit in mid-July.