Integrated Disease Management of late blight of potato

Abstract

Successful management of late blight depend on an integration of the following practices: removing sources of the pathogen by eliminating cull potatoes and volunteers and planting only healthy seed tubers, using resistant cultivars, scouting locations where late blight might appear first, using a forecasting system to gain an early warning of weather favourable to the disease and to adjust frequency of fungicide application or the intensity of scouting; and using appropriate protectant or systemic fungicides. After harvest, store potato tubers at cool temperatures under the conditions sufficiently dry ensuring that there is no free moisture on tuber surfaces.