Invasion risk assessment of Hemiberlesia pitysophila in Zhejiang.

Invasion risk assessment of Hemiberlesia pitysophila was implemented in Zhejiang province based on its biological properties,distribution potential risk and economic value of host plants.The result showed that the risk value of the insect topped 2.092 4 in the province,where is a potential distribution and occurrence place.Countermeasures were offered such as strengthening quarantine and management.