TY  - BOOK
AU  - Sameera Pothukattil 
AU  - Sheela T Paul(Guide)
TI  - Diseases of milky mushroom (calocybe indica P & C ) and their management 
U1  - 632.3 
PY  - 2007///
CY  - Vellanikkara
PB  - Department of Plant Pathology, College of Horticulture 
N2  - A study on “Diseases of milky mushroom (Calocybe indica P. &C.) and their management” was carried out in the Department of Plant Pathology, College of Horticulture, Vellanikkara, during the year 2006-2007.A survey was conducted on the occurrence of major diseases in four milky mushroom farms in Thrissur district The study revealed that two bacterial pathogens viz., Pseudomonas sp. and Bacillus sp. causing bacterial blotch and Dactylium dendroides and Penicillium sp. are the two fungi causing diseases on sporophore. Seven weed fungi were found to interfere with spawn running of milky mushroom namely Trichoderma sp., Coprinus sp., Chaetomium indicum, Rhizoctonia solani, Curvularia sp., Sclerotium sp., and Aspergillus sp.

	In vitro interaction studies between the milky mushroom and both fungal/ bacterial pathogens on medium and substrate showed that they can inhibit the mycelial growth. Culture filtrate of the weed fungi has inhibitory activity against C. indica. Seasonal effect on incidence of weed fungi was studied. It showed that maximum incidence in June, was correlated with high humidity and the major weed fungus observed was R. solani. Different substrate sterilization methods have an influence on mycelial growth and yield. Both in vitro and in vivo studies showed that chemical sterilization along with CaCO3 was the best treatment for the sterilization of paddy straw. Effect of weed fungi on mycelial growth and yield was tested; the study revealed that Sclerotium sp and C. indicum were showing more inhibitory effect by reducing the mycelial growth and yield. In vitro effect of phytoextracts was tested by poison food method. Phytoextracts of garlic, ocimum, turmeric, neem and marigold at 5, 10 and 15 per cent concentrations were tried. Among the five phytoextracts garlic and ocimum extracts were the best treatments against fungal pathogens / weed fungi. Turmeric and garlic extracts were most inhibitory to bacterial pathogens. On farm evaluation of the extracts reduced the weed fungi incidence. Prophylatic spraying of phytoextracts on sporophores decreased the bacterial disease incidence. There was a slight change in biochemical constituents between healthy and diseased sporophores

General cleaning, use of good quality substrate, maintenance of optimum conditions etc. will help to get substantial yield and reduction in disease incidence. It is desirable to provide a short break of two to three days after each crop and prophylactic spraying with phytoextracts after the destruction of inoculum will help in the management of both fungal and bacterial diseases.  	


UR  - http://krishikosh.egranth.ac.in/handle/1/5810108341
ER  -