What are the green pest control methods for edible fungi in spring?

Spring is the peak period for pest outbreaks in edible fungi. For vegetable growers, this is an important time for pest control, so what are the methods for “green” control of edible fungi pests in spring?

1. Control principles

Adhere to the principle of “prevention first, green control.” If prevention work is done well, the opportunity for pests to occur is eliminated. If pests have already appeared, they must be eliminated quickly and thoroughly. Do not take a chance and think that because the pest area is not large and the occurrence time is not long, you can wait and see whether the situation improves.

2. Pest prevention

1. The effect of Quchongling

During the growth of edible fungi, mushroom mosquitoes and mushroom flies are common. They mainly cause harm to edible fungi through the larvae that hatch after the adults lay eggs. Based on this characteristic of the pests, we can use highly effective Quchongling, which can make the mushroom shed give off an odor that adults dislike, causing them to flee the mushroom shed.

2. How to use Quchongling

The use of Quchongling should be based on the number of pest sources, the environment, and other conditions in the mushroom shed, preparing a 200-300 times solution of Quchongling. When spraying, carefully treat the ground, surroundings, ventilation openings, material beds, and other areas of the mushroom shed. If the temperature is above 15°C, spray once about every 2 days; in concentrated cultivation areas, spray once every other day in combination with the water used inside the shed; when there is a lot of waste material around the mushroom shed and the environment is poor, while spraying other insecticides outside the shed, spray the Quchongling solution inside the shed once a day, persist for more than a week, and after checking and confirming that its density has dropped significantly, it can be changed to once every 3 days to maintain the effect.

3. Killing pests

In spring, if a small number of mushroom mosquitoes are found in the mushroom shed, spraying a low-concentration pyrethroid pesticide promptly can kill them. You can also dilute Miehailing with water at 100 times, aim at the adults and increase the spray volume so that their wings are covered with atomized water droplets, which can make them fall to the ground. After their tiny bodies contact the wet ground, it is difficult for them to fly up again, and they will die within a few hours.

If the pest outbreak has already occurred for more than a week, at this time the larval population is relatively small and has not penetrated deep into the substrate, so all fruiting bodies can be picked off, and a 1000 times trichlorfon solution can be sprayed on the surface of the substrate. After sealing the mushroom shed for about 12 hours, they can be killed.

The above is an introduction to knowledge related to “green” control of edible fungi pests in spring, and it is hoped that it will be helpful to vegetable growers who cultivate edible mushrooms.