1. Anon. 1984. Insect pests of sweet potato. In Sweet Potato Cultivation in China. Shanghai China: Shanghai Science Press 294-301.
2. APPPC 1987. Insect pests of economic significance affecting major crops of the countries in Asia and the Pacific region. Technical Document No. 135. Bangkok Thailand: Regional Office for Asia and the Pacific region (RAPA).
3. ASPB (Arkansas State Plant Board) 1920. Rules and regulations of the state plant board effective July 1 1920. ASPB Little Rock Arkansas USA Circular No. 10.
4. AVRDC 1976. AVRDC Progress Report 1975. Shanhua Taiwan: Asian Vegetable Research and Development Center.
5. AVRDC 1988. AVRDC Progress Report 1986. Shanhua Taiwan: Asian Vegetable Research and Development Center.