The latest symptoms and control methods of mushroom mites

In the process of edible fungus cultivation, mushroom mite is the most common and harmful pest. Once it invades, it is extremely difficult to control, especially in the high temperature season. In order to obtain high yield, it is very important to control mushroom mite. So what are the manifestations of the harm of mushroom mites? How to prevent and cure it? Let's get to know it with the editor.

1. Occurrence regularity

Mushroom mites like warm and humid environment and often lay eggs in rice straw, rice bran, wheat husk and cottonseed hulls, and as these materials enter the mushroom house, they become dormant bodies in bad environment, and dormancy can be absorbed on mosquitoes, flies and other insects to spread. During the peak period of reproduction in the environment of 15-38 degrees, each female mite laid 50-200 eggs, which could survive the winter in the space between the shelves of the mushroom room in the way of mites and eggs, and continue to endanger when the temperature was suitable and the nutrients were sufficient.

2. Occurrence of symptoms

When mites occur, the hyphae at the mouth of the bottle are not dense enough, and the hyphae are atrophied and degenerated, and sometimes the hyphae can not be seen in the culture medium. When the mushroom body is damaged, the white fungus will blacken and give off an unpleasant mildew smell. When young mushrooms and mature fruiting bodies are damaged, brown or yellow spots will appear on the cap and stalk, and the initial spots will be sunken or porous, and the edges are dark brown. The middle is slightly light or hollow, but the fruiting body does not rot.

3. Preventive measures

Once the mite damage occurs in the mushroom room, it is extremely difficult to control it in a short time, so the prevention is the main in the production, and the mite-free strain is selected. the strain should be checked carefully before inoculation to ensure that there are no mites in the strain bottle and should be eliminated in time. In addition, the culture materials of Pleurotus ostreatus should be fermented twice, and the culture materials of other strains should be thoroughly sterilized to kill the mites and eggs. The mushroom house should be thoroughly treated with insecticides before production, and in order to reduce drug resistance, the fungicides should be replaced in turn.

4. Chemical control

When the harm of mites is found, the mixture of stone and sulfur with 2000 times liquid of alkyne mites and 0.5 degrees Baume can be sprayed and killed, or fresh tobacco leaves can be laid on the culture surface damaged by bacteria and mites, and when they gather on them, the tobacco leaves can be removed and roasted after use. If mites are not found, they can continue to be trapped and killed according to this method until there are no mites.

The above is the introduction of harmful symptoms and control methods of mushroom mites. I hope I can help you. If you want to know more about it, please pay attention to us.