This site seeks to answer the question about "yams" and sweetpotatoes.

The International Potato Center's (CIP) page on sweetpotatoes.

Information, management and references for this serious worldwide pest.

A section from an online publication, Sustainable Practices for Vegetble Production in the South

Research information from the Kyushu National Agricultural Experiment Station (Japan)

This site provides a general crop information, insect pests, and disease pathogens.

Hawaii extension publication.

A Food and Agriculture Organization (FAO) site that describes root and tuber crops and derived products.

Facts and recipes.

Uses, description, and cultivation of the Sweetpotato.