广东外来有害生物松突圆蚧入侵的历史阶段与特点

Historical Stages and Characteristics of the Invasion of the Alien Pest Hemiberlesia Pitysophila Takagi in Guangdong

松突圆蚧是国际公认的十大森林虫害之一,是我国重要外来入侵生物之一,广泛分布于粤闽两省.广东是我国大陆松突圆蚧最早发现的入侵区,1983年疫情得到确认,其给广东经济、社会、生态等各方面造成极大损失.松突圆蚧入侵历史分为三个阶段:入侵初期与局部发生时期,蔓延与危害显现时期,虫害跨境爆发和综合防控时期.该虫害传播能力强,危害性大、难以根治,且有不断向周边扩散蔓延的趋势,对该虫的防控防治值得关注.

Hemiberlesia pitysophila Takagi is internationally regarded as one of the damaging pests of forest, and it is also one of the main invasive species in China that widely spreads around the Guangdong and Fujian provinces. Guangdong Province is the first invaded area where the invasion of Hemiherlesia pitysophi- la Takagi was found. The invasion was confirmed in 1983 and it caused enormous loss of Guangdong in eco- nomical, social and ecological aspects. According to the history, there are three stages in the invasion of Hemiberlesia pitysophila Takagi： early invasion and portion occurrence, spreading and damage appearance, damage enlarging within regions and comprehensive prevention. The rapid spreading ability and severe harm caused difficulties for complete control and prevention of Hemiberlesia pitysophila Takagi which also showed trendency to continue to spread out. The control and prevention of Hemibertesia pitysophila Takagi should get more attention.