Harmful Competitors and diseases of <i>P. leurotus ostreatus</i> and their control measures

Extended cultivation of Pleurotus ostreatus in the same location leads to increased infection by harmful organisms, which results reduced yield and quality mushrooms. This, turn, decreases profitability production may render mushroom growing an unviable industry [1-4]. In blocks infected with competing microorganisms, growth P. mycelium is initially very slow, lose their due influence foreign microorganisms. has been observed result increase incidence leading a decrease xperiments were conducted investigate impact microorganisms on growth, development, using cotton bolls, substrate that proven be effective Republic. According results, appearance Trichoderma fungus was 7 days after sowing ostreatus, colonies forming 2-3 cm diameter. These indicators 12.7% total number planted blocks. After 14 days, percentage lesions 18.4%, moderate damage being most common.