What are the main points of prevention and control measures of straw mushroom Trichoderma?

Straw mushroom, also known as orchid mushroom, is mainly distributed in South China. Straw mushroom is nutritious and delicious, and it is a common dish in the family. Nowadays, there are more people growing straw mushrooms, so what are the main points of prevention and control measures for Trichoderma volvacea?

Symptoms of volvariella volvacea and Trichoderma

White cotton floc will grow on volvariella volvacea in the early stage of Trichoderma infection, which will inhibit the growth of mycelium and turn green in the later stage. Once straw mushroom is harmed by Trichoderma, it can only be scrapped, even if it is only a mild infection, it cannot be retained and must be removed immediately.

2. The pathogen of Trichoderma volvacea

Trichoderma is commonly known as green mold. It belongs to Trichoderma, Trichoderma. Common Trichoderma include Trichoderma harzianum, Trichoderma viride and so on.

3. The characteristics of Trichoderma volvacea

Trichoderma has a strong ability to decompose cellulose and grows quickly on the substrate rich in lignin and cellulose. Trichoderma can reproduce in the plant rhizosphere by occupying space and nutrition to control harmful fungi. Trichoderma can also control diseases by secreting antibiotics to inhibit the proliferation of harmful fungi.

4. Control measures of Trichoderma volvacea

1. Preventive measures without infection

So far, no method has been developed to cure Trichoderma in volvariella volvacea. The frequently used fungicides only inhibit Trichoderma and have no effect on killing bacteria. Even if the dosage is increased, the mycelium of volvariella volvacea can only be removed. Therefore, after the practice of vegetable farmers, it is found that if straw mushroom grows in a good environment, and this environment is not suitable for the growth of Trichoderma, this is the fundamental measure to control straw mushroom infection with Trichoderma.

two。 Treatment measures after infection

If it is found that volvariella volvacea is infected with Trichoderma, it is necessary to immediately reduce the growth temperature, maintain ventilation and effectively control the spread of Trichoderma deee. If it is found that the culture material is susceptible to Trichoderma in the pathogenic stage, the method of injection can be used to inhibit the expansion of Trichoderma. The commonly used solutions are: 5% carbendazim, 2% formaldehyde, 50% carbendazim, 100% thiophanate methyl, and lime water with a pH value of 10. You can also sprinkle some gray noodles to the infected place, which also has a good prevention and control effect.

Straw mushroom Trichoderma is one of the common diseases in the process of edible strain production and cultivation, so it is necessary to strengthen protective measures to avoid this kind of situation.