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A Detailed Guide to Common Pest Control Techniques for Oyster Mushrooms

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The common pests of oyster mushrooms include mushroom flies, mushroom gnats, mites, nematodes, springtails, and slugs. They lay eggs in the growing medium, and the larvae breed in the growing medium, harming the mycelium and causing the growing medium to rot. Adults such as noctuid moths also gnaw on oyster mushroom stems and mycelium and spread pathogenic bacteria. In addition, prevention must be done well throughout the entire cultivation and fruiting process. Mice eating mushroom spawn, messing up the bed material, or biting through mushroom log bags are also problems that lead to reduced yields. Preventive measures: pay attention to environmental sanitation. Before growing mushrooms, clean the inside and outside of the mushroom house thoroughly, and spray with formalin, dichlorvos, or pyrethroid pesticides, or fumigate with smoke agents.

The common pests of oyster mushrooms include mushroom flies, mushroom gnats, mites, nematodes, springtails, and slugs. They lay eggs in the growing medium, and the larvae breed in the growing medium, harming the mycelium and causing the growing medium to rot. Adults such as noctuid moths also gnaw on oyster mushroom stems and mycelium and spread pathogenic bacteria. In addition, prevention must be done well throughout the entire cultivation and fruiting process. Mice eating mushroom spawn, messing up the bed material, or biting through mushroom log bags are also problems that lead to reduced yields.

Preventive measures: pay attention to environmental sanitation. Before growing mushrooms, clean the inside and outside of the mushroom house thoroughly, and only enter the house to sow and inoculate after spraying with formalin, dichlorvos, or pyrethroid pesticides, or fumigating with smoke agents; the plastic film and other tools used for bed cultivation must be disinfected well before use, and cleaned up promptly after use. Sweep up the debris dropped during inoculation, close doors and windows properly, and install window screens where conditions permit to reduce the invasion of insects and rodents.

Treatment measures: when molds such as Penicillium and Trichoderma appear locally on the mushroom bed, sprinkle lime or carbendazim powder on the surface of the molds, or cover the molds with cotton soaked in potassium permanganate aqueous solution to inhibit mold growth. Diseased oyster mushrooms should be picked off promptly. When pests appear, promptly kill them with pyrethroid pesticides, mushroom pest cleaner, or other low-toxicity pesticides.

Note that when spraying pesticides during the fruiting period, it is best to spray after a batch of mushrooms has been fully harvested and when there are no mushrooms, so as to avoid pesticide residues affecting people who eat the mushrooms, and to prevent effects on young mushrooms, which are prone to deformities.

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