Prevalence of Green Mould Disease Of Milky Mushroom (Calocybe indica) in Haryana

Mushrooms are edible fungi. Milky mushroom (Calocybe indica) fits well under summer months conditions because of its ability to grow at temperature above 30°C. The green mould due to Trichoderma harzianum is of common occurrence in milky mushroom cultivation and causing losses from 63-65%. The disease characterized by initially white to grayish mycelium appear on substrate and on casing surface that resembles with the mushroom mycelial and later on mycelium mat turns to dark green color due to heavy spoliation of causal agent which is a peculiar symptom of the disease. The green mould incidence recorded varies from 0 to 26 % and maximum being in the Sonipat district (26.0 %), and no disease was recorded in Fatehabad district. The average disease incidence in Haryana recorded during 2014 was 14.8 per cent and approx similar pattern of disease prevalence (13.8 per cent) was observed during 2015.