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近年来,由于气候异常变化,加剧了一些病虫害的发生。在辽宁省清原满族自治县的常绿针叶林中,油(赤)松为15.42万亩,占现有林总面积的3.68%。从20世纪90年代末开始,日本松干蚧开始在上述油(赤)松林中发生,局部地区已导致成灾。为了掌握该害虫的生活史、生活习性和危害状况,笔者对此害虫进行了详细的观察、记录,并开展了综合防治实验,现将整个结果阐述如下:
In recent years, some pests and diseases have intensified due to the abnormal climate change. Among the evergreen coniferous forests of Qingyuan Manchu Autonomous County in Liaoning Province, the amount of oil (red) pine is 15.42 million mu, accounting for 3.68% of the total existing forest area. Since the late 1990s, Japanese pine and gecko began to occur in the above-mentioned oil (red) pine forests, and some areas have caused disasters. In order to grasp the pest’s life history, habits and hazards, the author of this pest carried out a detailed observation, record, and conducted a comprehensive prevention and control experiment, the entire results are as follows: