Vol. 7, Issue 5 (2019)
Status of green mould disease of white button mushroom [Agaricus bisporus (Lange) Sing.] under temperate conditions of Kashmir
Author(s): Suhail Altaf, Shaheen Kousar Jan, Farahnaz Rasool, Shahid Qayoom Dar and Uzma Bashir
Abstract: An extensive survey conducted during both spring and autumn crop seasons of 2017-2018 in major mushroom growing units in districts Pulwama, Budgam, and Baramulla of Kashmir valley was undertaken to record the status of the disease. The survey revealed that green mould disease was prevalent in all mushroom growing districts with varied degrees of incidence, intensity and yield loss. The overall mean disease incidence was 19.04 per cent over years in three districts, the disease incidence was more (21.99-23.74%) in spring than in autumn season (13.56-15.22%). The disease was most prevalent (23.03%) in district Budgam followed by that (17.65%) in district Baramulla, whereas district Pulwama exhibited the least disease prevalence (16.45%). Similarly, the overall disease intensity was 13.69 per cent over the years in these districts with more (15.82 - 17.28%) in spring than in autumn season (10.08-10.83%). It was the highest (15.3%) in district Budgam and the lowest (11.46%) in district Pulwama. The overall per cent yield loss over the years due to the disease was 18.39 per cent with maximum loss reported in district Budgam (23.21%) and minimum in district Pulwama (15.18%). The yield loss was highest (20.78-22.11%) in spring than in autumn season (14.29-15.35%). The higher disease incidence, intensity and yield loss in district Budgam could probably be attributed the levels of sanitation adopted and the method of composting was not ideal and also the growers from district Budgam were not so progressive. It was also observed during the present surveys that the green mould disease incidence was more in spring season compared to that in autumn season. The onset of pathogen-favourable environmental conditions relating to temperature and high relative humidity outside mushroom production houses seem to promote T. harzianum growth and proliferation in contaminated spent compost, casing materials and wild A. bisporus during the spring season.
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How to cite this article:
Suhail Altaf, Shaheen Kousar Jan, Farahnaz Rasool, Shahid Qayoom Dar, Uzma Bashir. Status of green mould disease of white button mushroom [Agaricus bisporus (Lange) Sing.] under temperate conditions of Kashmir. Int J Chem Stud 2019;7(5):1197-1201.
