Volume 12 Part 2 Article 80: Brown Spot Disease of White Button Mushroom [Agaricus bisporus (Lange) Imbach] Due to Gliocladium deliquescens Sopp.

Volume 12 Part 2 Article 80
Year 1989
Title: Brown Spot Disease of White Button Mushroom [Agaricus bisporus (Lange) Imbach] Due to Gliocladium deliquescens Sopp.
Authors: C.D. Thapa and P.K. Seth

Abstract:

Frequent crop failures and considerable yield reductions were noticed in some of the mushroom farms in Himachal Pradesh state of India. A green soil fungus was found to be constantly associated with the disease causing complete browning and rotting of the fruiting bodies in the affected beds. The yield was very much reduced and the formation of new pinheads checked. The pathogen was earlier confused with the Trichoderma blotch but the microscopical observations revealed it to be a species of Gliocladium. The pathogen was isolated in pure form. The pathogenicity was proved. It was identified as Gliocladium deliquescens Sopp. The identity was confirmed from the Indian Agricultural Research Institute, Pusa, New Delhi (ITCC Accession No. 3540). The details of the observations taken for its symptomatology, etiology and the preliminary investigations carried out for its control have been given in the present manuscript.

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