Bittergourd is one of the most popular vegetable cultivated throughout India and extensively grown in Kerala. The fruits are used in a variety of culinary preparations and possess high nutritive and medicinal value. The commercial cultivation of bittergourd is very successful because of its high demand and market value. The major constraint faced in the cultivation of bittergourd is the incidence of diseases. | In planta studies on downy mildew disease of bittergourd using fungicides and bioagents