ABSTRACT

The cucurbit crops suffer from a number of fungal, bacterial, viral, nematodes, and nutrients deficiency diseases. The fungi survive in soil on plant debris and seeds may also be the source of new infection. Favored by moist conditions, such as rain, fog, and heavy dews and therefore more common in districts of higher rainfall. The disease spreads by windblown rain, people, animals, and machinery moving through the crop in wet or moist conditions. The initial green to yellowish and dark green areas like mosaic, later turn into yellow colored angular spots on upper surface of the leaves. In India, the disease is prevalent in almost all the states particularly in the warm and dry areas where moisture is present as dew. The disease is favored by a common soil-borne fungus that is favored by warm to hot conditions and spread by trash and soil.