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薄壳山核桃主要病害发生规律及防控

来源：花匠小妙招时间：2024-09-14 08:01

摘要： 对薄壳山核桃病害的种类、病原菌、发生规律及防治措施进行了总结,统计可知,已见报道的薄壳山核桃病害总计21种,其中真菌性病害16种、细菌性病害3种、线虫病害2种; 主要的病害有8种,以疮痂病、白粉病、黑斑病危害最为严重。目前叶焦病、冠瘿病、丛枝病、根结线虫和剑线虫等危害薄壳山核桃现象在国内尚未被发现,但在国外危害情况比较严重,应作为我国检疫性病害重点关注对象; 薄壳山核桃干腐病近几年在国内发病的趋势上升显著,尤其是对5年生以上多个品种的树干危害比较严重,经常导致整株死亡; 轮斑病和干枯病等大多为弱寄生性真菌病害,其危害较轻。

Abstract: The domestic and overseas literatures about diseases in Carya illinoensis were collected, and the species, pathogen, damage characteristics and bio-control of diseases in Carya illinoensis were summarized. There are 21 species diseases in Carya illinoensis, including 16 fungal diseases, 3 bacterial diseases and 2 nematode diseases. There are 8 main diseases and in which scab, powdery mildew and melasma have the most serious harm. Nowadays leaf scorch,crown gall,bunch,root knot nematode and dagger nematode have not been found yet at home.But the harm in foreign countries was serious,it should be got attention as quarantine disease. In recent years, the domestic pathogenesis trend of increased significantly. It caused serious harm to the trunk of many kinds of Carya illinoensis whose age were over 5-year-old and it often lead to the death of the whole tree. Zonate spot and maldel secco mostly belonged to weak parasitic fungal diseases; the harm of it was slight.The paper aims at providing theoretical guidance for control of the disease of Carya illinoensis.

中图分类号:

S763

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所属分类：花卉