There are many types of cockroach-shaped larvae that harm fruit body and mycelium of mushroom, which are collectively referred to as "bacterin". There are 4 species that are more common, namely Ru, Syrphidae, Runfly, Dung fly and so on. Their larvae, the crickets, appear to be similar in appearance to the naked eye, and there are only significant differences between the nymphs and flies. The forms and living habits of the flies, drosophila, and dung fly are very similar, so they are often mistaken for only one species. They are called "flies." Bacterial larvae (larvae) will eat fruiting bodies to make mushrooms become waste products, and some harm the mycelium. Mushrooms that have been eaten by mushrooms are sometimes difficult to find on the outside, but they have a great influence on the quality of canning. The bacillary dysentery mainly comes from cow dung or pig manure, and cow dung and pig dung are collected during the drying process in summer and autumn. The flies crawl and spawn. When these materials were fermented during composting, the eggs were not completely killed and they were brought into the house with the culture material. The prevention and control methods are introduced as follows: When there are no long fruit bodies in the bed, the insects can be killed by spraying with 1000 times liquid of dipterex and the larvae exposed on the surface of the soil can be killed. Spray once every 2 days, spray 3-4 times continuously. 2. Adult phototaxis can be used black light trapping. 3. When composting materials, try to increase the temperature of the heap, and turn the material while spraying. After re-building the pile, cover it with plastic film, and then uncover it after smoking for 2 days. This can kill most of the body and eggs in the heap. 4. The use of some soil-based pesticides, such as tobacco stems, tomato stems and leaves, eucalyptus leaves, buckwheat leaves, artemisia annua, and ramie leaves, mixed with compost materials, can kill larvae or reduce larval breeding. 5. Bacillus thuringiensis, Bacillus cereus, Beauveria bassiana, etc., have a good effect on the control of juveniles. Bacillus has a strong virulence against fly insects, which kills larvae and cockroaches and is harmless to humans and animals. The animals eat the feed with Bacillus, and the excreted feces carry the bacteria. The fly larvae cannot breed. 6. Culture materials must undergo "secondary fermentation."
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