SPECIES COMPOSITION OF POWDERY MILDEW ON CUCURBITS IN PUNJAB, INDIAMOHIT KUMAR GUPTA AND G. K. SHARMAAbstract A large number of powdery mildew infected samples of cucurbits were collected and analyzed for occurrence, distribution and identity in Punjab, a state of Northern India. It was noticed in the present study that powdery mildew species can be identified by using anamorph characters in absence of teleomorph. Most of the cucurbits were found infected in one or the other locality of the study area which comprised five distcricts of Punjab. On the basis of anamorph and teleomorph characters species composition of powdery mildew disease in the state was as Podosphaera xanthii (Syn. Sphaerotheca fuliginea) on cultivated cucurbits and Golovinomyces cichoracearum (Syn. Erysiphe cichoracearum) on Coccinia cordifolia (a wild cucurbit). The pathogenic spectrum and identity situation in Punjab are found similar to other states in India.
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