Modeling the Potential Geographic Distribution of the Madeira mealybug (Phenacoccus madeirensis) in Hainan Using GIS Tools

摘要

The Madeira mealybug (Phenacoccus madeirensis Green) is one of the main pests in the world and the risk of invasion posed by this pest is becoming more and more serious with regard to increasing areas of planting cassava in Hainan province, China. It is urgent to analyze the potential geography distribution of P. madeirensisamong cassava in Hainan. The environmental suitability of P. madeirensis in Hainan was studied in this paper using Maxent and ArcGIS, based on the biological data and known distribution of P. madeirensiss. The results showed that there were 4 levels of suitability assessment of P. madeirensis in Hainan. The prediction showed P. madeirensismainly distributed in west and south Hainan, especially in Danzhou, Lingao, Chengmai, Dongfang, Ledong and Sanya cities or counties. The potential geographic distribution of P. madeirensis in Hainan defined in this paper constructed the theory basis and technical support for scientifically forming of control measures for P. madeirensis in Hainan.