Occurrence and Control of Edible Fungus Brown Rot
Brown rot mainly harms fruit bodies such as straw mushrooms and mushrooms. When the fruiting body was slightly infected, the stipe became swollen and blister-shaped. The fruit body is infected when it is undifferentiated, producing an irregular tissue mass covered with a layer of white mycelium that gradually turns dark brown and often oozes dark black juice droplets from the diseased tissue. After the infection of the cap and stipe, the stipe became brown and the infected pleats produced white hyphae.
Control methods: When the disease is onset, immediately stop the water spray, increase the ventilation of the mushroom house, reduce the room temperature to 15°C or less, spray the 50% carbendazim WP 500 times, or spray 1%-2% Formaldehyde solution is sterilized. If the casing soil is contaminated, spray 50% carbendazim wettable powder 500 times, or 70% thiophanate-methyl wettable powder 500 times, on the cover soil to kill pathogen spores. When the disease is severe, remove the original casing, replace the new soil, and burn the mushrooms. The tools used are disinfected with 4% formaldehyde solution.
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