Distribution and host plants of the spiraling whitefly, Aleurodicus disperses, in Hainan.
The spiralling whitefly, A. dispersus, is a new invasive insect pest in Hainan, China. The host plants and the occurrence of the spiralling whitefly were investigated from September 2006 to September 2007. In Hainan Island, except for Changjiang County and Dongfang City, the pest was found in 15 of its 17 counties. Serious occurrence was found in some sites at the foot of Diaoluo and Jianfeng Mountains. A total of 120 plant species of 47 families were recorded as the host plants for the spiralling whitefly in Hainan Island, of which, Pterocarpus indicus, Terminalia catappa, Psidium guajava, Carica papaya, Manihot glaziovii, Musa sapientum [M. paradisiaca], Solanum melongena, Phaseolus vulgaris, Canna indica, Euphorbia hirta and Scoparia dulcis were the main host plants. A brief discussion on the control of the pest is included.