How to control mushroom maggots

Maggot larvae that harm mushroom fruiting bodies and hyphae are collectively referred to as "maggots". There are 4 common species, namely, gnat, gall fly, dung fly and so on. Their larvae, maggots, are morphologically similar to the naked eye, while adults are only significantly different from flies. The shape and living habits of gall flies, sowing flies and dung flies are very similar, so they are often mistaken for only one kind, all called "bacterial flies".

Maggots (larvae) eat the fruiting body, turning mushrooms into waste products, and some endanger the hyphae. Mushrooms eaten by maggots are sometimes difficult to find in appearance, but they have a great impact on the quality of cans.

Maggots mainly come from cow dung or pig manure. Flies crawl and lay eggs on cow manure and pig manure in the process of collecting and drying in summer and autumn. When these materials are stacked and fermented, the eggs are not all killed, so they are brought into the feeding room along with the culture material. The prevention and control methods are introduced as follows:

1. When there is no long fruiting body on the seed bed, spraying trichlorfon with 1000 times liquid can kill adults and larvae exposed to the surface of the soil. Spray every 2 days, 3-4 times in a row.

2. Adults have phototaxis and can be trapped and killed by black light.

3. When stacking the culture material, raise the stack temperature as much as possible, and when turning the pile, turn the material while spraying. After rebuilding the pile, cover it tightly with plastic film and open it after 2 days of fumigation, so that most of the insect bodies and eggs in the pile can be killed.

4. Some soil pesticides, such as tobacco stems, tomato stems and leaves, eucalyptus leaves, neem leaves, Artemisia annua, castor leaves, etc., can be mixed into composting materials, which can kill larvae or reduce the birth of larvae.

5. Bacillus thuringiensis, Bacillus thuringiensis, Beauveria bassiana and so on have a good effect on the control of young flies. Bacillus has a strong pathogenicity to flies, killing larvae and pupae, but harmless to human beings and animals. When livestock eat feed with bacillus, the feces are also infected with bacteria, so fly larvae can not be born.

6. The culture material must be "secondary fermentation".