MySheen

Symptoms of several major diseases of Pleurotus ostreatus

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, The main results are as follows: (1) White rot: the pathogen is verrucosporium, which harms the fruiting body and causes decay and rotten smell after mushroom body pollution. (2) Brown spot: the pathogen is Trichoderma verticillarum. After its spores infect the fruiting body of Pleurotus ostreatus, brown spots are formed on the cover, which gradually expand and produce gray-white depressions. After the damage of the mushroom body, it becomes deformed, the stalk of the mushroom is swollen or curved, but does not rot, and finally dries up and dies. (3) Mucor soft rot: the pathogen is Mucor. Generally occurs when the fruiting body is fully mature.

The main results are as follows: (1) White rot: the pathogen is verrucosporium, which harms the fruiting body and causes decay and rotten smell after mushroom body pollution.

(2) Brown spot: the pathogen is Trichoderma verticillarum. After its spores infect the fruiting body of Pleurotus ostreatus, brown spots are formed on the cover, which gradually expand and produce gray-white depressions. After the damage of the mushroom body, it becomes deformed, the stalk of the mushroom is swollen or curved, but does not rot, and finally dries up and dies.

(3) Mucor soft rot: the pathogen is Mucor. Generally, it occurs when the fruiting body is not harvested in time after the fruiting body is fully mature, and the mushroom room is in the environment of high temperature and humidity or stagnant water on the bed for a long time, the diseased fruiting body shows light yellow or light brown water-stained soft rot, which usually starts from the base of the fungal stalk, and finally causes the whole fruiting body to show water-stained soft rot, the surface is sticky and slippery, and there is no rotten smell.

(4) Pleurotus ostreatus malformation: it belongs to physiological disease. It occurs under the condition of poor ventilation, high concentration of carbon dioxide or lack of light, dysplasia after fruiting body differentiation, often with long feet, small or even aseptic cap, or "V" shaped mushroom. Secondly, there are deformities caused by virus, its stalk swelling in the form of near-ball burning bottle shape, and finally the mushroom body atrophied, spongy, resulting in death.

(5) Young mushroom atrophy and dry blight: caused by physiological lack of water and relatively low humidity of air. The young mushroom grows thin, shrinks and dies from top to bottom, and the fruiting body is wrinkled and shrunken.

 
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