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牡蛎蚧属同翅目蚧科,分布于东北、华北、西北、华东、华南等地,是杨树灾害性害虫,是我国森林植物检疫对象之一。通辽地区七十年代末期只有少量牡蛎蚧分布, 由于防治不及时,又没有严格地实施检疫措施,使其分布面积不断扩大,危害程度逐年加重。针对这种情况,我们于1983年至1985年对牡蛎蚧进行了观察,并作了防治研究,取得了一定的成效。现将结果报告如下:
Oyster scale belongs to Homoptera, which is distributed in the northeast, north, northwest, east, south China and other places. It is one of poplar disaster catastrophe and is one of the objects of forest plant quarantine in our country. In the late 1970s in Tongliao, only a few oyster scales were distributed. As the prevention and treatment were not implemented in a timely manner, quarantine measures were not implemented strictly so that the distribution area of the oyster scales kept expanding and the degree of harm increased year by year. In view of this situation, we observed the Oyster Kuwana from 1983 to 1985, and made prevention and treatment research, and achieved some success. The results reported below: