July 2016 Vol. 4 No.7

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Rokni N
Safaie N

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Original Research Article

Competencies of Lecanicillium fungicola in the face of Agaricus bisporus (white button mushroom)

Nader Rokni^1*, Gafoor Zadehd Dabagh², Ebrahim Mohammadi Goltapeh³ and Naser Safaie³

¹Department of Chemistry of Pesticides, Jundi Shapur University, Dezful, P.O. Box 64615-334, Iran
²Plant Protection Department, Safi Abad Agriculture and Natural Resources Research and Education Center, Dezful, P.O. Box 333, Iran
³Faculty of Agriculture, Department of Plant Pathology, Tarbiat Modares University, Tehran P.O. Box 149771-3111, Iran

*Corresponding Author’s Emial; naderrokni@jsu.ac.ir

Accepted June 22, 2016

Abstract

The dry bubble disease is known as one of the most important and notorious diseases of the cultivated white button mushroom (Agaricus bisporus (Lange) Imbach). The causal agent Lecanicilium fungicola has a worldwide distribution. The control of the disease relies on strict hygiene and the use of fungicides. The epidemiology of the disease was investigated. The results approved statistically significant differences among transmission potential of alternative sources of casing materials. The relative inefficiency of the mechanical control as a method for the management of the disease and the internal effects of factors that involved in the epidemic of the dry bubble through mushroom farms were explained. It is also shown that there are direct and indirect relationships between the radial development of the L. fungicola and the disease incidence- related tothe inoculation depth of the pathogen, respectively, and that the pathogen colonizes the mushroom growth bed with the average rate of 2.3 mm per day.

Keywords: Casing soil, Epidemiology, Lecanicillium fungicola, Mechanical control