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Among the cultivable medicinal plants in India particularly in West Bengal, Antomul (Tylophora
indica) and Tak bhindi (Hibiscus subdariffa) is one of the most important crops which suffers from
leaf blight disease caused by Sclerotium rolfsii and Fusarium sp. respectively. The results of fixed
plot survey showed that highest blight disease of Antomul was recorded during June 2013 and
lowest disease incidence was recorded during September 2012 and highest blight disease of
Takbhendi was recorded during May 2013 and lowest disease incidence was recorded during
August 2013. Studies of symptoms of leaf blights of Antomul and Takbhendi were recorded. The
causal pathogens Sclerotium rolfsii and Fusarium sp. respectively were established through
pathogenicity test. Morphometric characters and micrometric measurement of the pathogens were
made. Field trial by using safer fungicides and biocontrol agents showed that application of
Mancozeb @ 0.25% recorded the lowest percent disease incidence of blight of Antomul caused by
Sclerotium rolfsii and application of Carbendazim @ 0.1% recorded the lowest percent disease
incidence of blight of Takbhendi caused by Fusarium sp.
Keywords: Sclerotium rolfsii, Fusarium sp., Mancozeb, Carbendazim