A Detailed Explanation of the Causes and Control Methods of Malformed Mushroom Disease in Edible Fungi
The Causes and Control of Malformed Mushroom Disease in Edible Fungi
Malformed mushroom disease in edible fungi is also a physiological disease. During the period when edible fungi form fruiting bodies, if they encounter adverse environments and conditions that prevent the fruiting bodies from developing normally, various kinds of malformations will occur. The main characteristics are: small and thin caps, slender stipes, and early opening of the caps. This phenomenon occurs mostly after the first flush in oyster mushrooms (Pleurotus ostreatus) and wind-feather mushrooms, while in shiitake (Lentinula edodes) it occurs in the first flush. Its main causes are high temperature, insufficient light, and lack of nutrients.
Long-stipe mushrooms mainly occur during the formation of fruiting bodies in the genus Pleurotus; the fruiting bodies appear coral-like or have extremely small caps, while the base of the stipe is thick and enlarged. The main causes are insufficient light, poor ventilation, excessively high carbon dioxide content, and too little oxygen. The tilting of fruiting bodies generally occurs toward the side with light; the cause is the phototropism of the fruiting bodies during growth, mainly resulting from uneven light in the mushroom house. The frequent shrinking of mycelium during different growth stages, and sometimes even death, is mainly due to the spawn not being vigorous and failing to colonize the new compost; or the moisture content of the compost being unsuitable, either too dry or too wet; or the temperature inside the compost being too high, causing spawn burning; or poor aeration within the compost; and it may also be that the pH of the compost is unsuitable.
There is only one control measure: throughout the production process, every procedure and every technique must be carried out scientifically and strictly according to requirements, so as to avoid various adverse consequences that could lead to production failure.
Long-stipe mushrooms mainly occur during the formation of fruiting bodies in the genus Pleurotus; the fruiting bodies appear coral-like or have extremely small caps, while the base of the stipe is thick and enlarged. The main causes are insufficient light, poor ventilation, excessively high carbon dioxide content, and too little oxygen. The tilting of fruiting bodies generally occurs toward the side with light; the cause is the phototropism of the fruiting bodies during growth, mainly resulting from uneven light in the mushroom house. The frequent shrinking of mycelium during different growth stages, and sometimes even death, is mainly due to the spawn not being vigorous and failing to colonize the new compost; or the moisture content of the compost being unsuitable, either too dry or too wet; or the temperature inside the compost being too high, causing spawn burning; or poor aeration within the compost; and it may also be that the pH of the compost is unsuitable.
There is only one control measure: throughout the production process, every procedure and every technique must be carried out scientifically and strictly according to requirements, so as to avoid various adverse consequences that could lead to production failure.