Tomato is the most important vegetable crop in Uganda, being produced mainly in the peri-urban areas for the fresh market. Major diseases on tomatoes include Early and Late Blights (Alternaria solani and Phytophthora infestans), and Bacterial wilt (Ralstonia solanacearum). Major pests include (Polyphagotaronemus latus), thrips, aphids, mites (Frankliniella sp), and American bollworms (Helicovepa armigera). Control is by synthetic pesticides that are expensive, may not be readily accessible, and may not be used correctly and in the right concentrations. Bacterial wilt is soil-borne with no chemical control yet available.