唐山市南湖生态公园主要病虫害及其寄主树木调查

摘要

采用普查和抽查相结合的方法，对唐山南湖生态公园核心示范区内主要树木病虫害种类及危害程度进行了调查。病虫害危害较严重的树木主要有13种。发生较严重的虫害主要有11种，其中美国白蛾、草履蚧、白杨纹潜蛾和柳蓝叶甲危害严重；发生较严重的病害主要有17种，包括有灰斑病、炭疽病、叶斑病、煤污病、木腐病、干腐病等。%The main diseases, insect pests and its severity, host trees were invertigated in South Lake Ecological Park of Tangshan by the method of census and sampling. Thirteen species of trees were seriously affected by diseases and harmful insects. Eleven species of insect pests were inverstigated as main danger in park, including Hlyphantria cunea (Drury), Drosicha contrahens, Leucoptera susinella Herrich-schaffer, Plagiodera versicolora (Laicharting). Seventeen kinds of diseases were seriously happened during the investigation term, including gray spot, anthrax, leaf spot, sooty blotch, wood rot, dry rot, etc.