Paper Details

PJB-1974-21

COTTON WEEDS AS HOSTS OF MYROTHECIUM RORIDUM TODE EX. FR.

MUHAMMAD TANVEER, AHMAD SALEEM AND EHASAN UL HAQ
Abstract

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Myrothecium roridium is a wide spread fungus causing leaf spot disease of cotton in cotton tracts of Punjab (Tanweer and Saleem, 1974) It has been observed on many cotton varieties including the local ones. The disease first appears as small circular, whitish, grey ringed spots with define margins on the leaves. As the spots grow in size, they coalesce large irregular spots . Concentric rings appear under unfavourable conditions of development and on both sides of the leaf black pinhead sized sporodochia of round to irregular shapes are seen.

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