Skillful treatment of Lentinus edodes mosquitoes

Black sunflower mosquitoes, mushroom mosquitoes and other Diptera insects are collectively referred to as "mushroom mosquitoes". The harm of mushroom mosquitoes can reduce the yield of Lentinus edodes by about 30%. Therefore, the effective control of "mushroom mosquitoes" can increase the yield of Lentinus edodes by about 30%.

I. the life habits and occurrence regularity of mushroom mosquitoes.

Mushroom mosquitoes like to breed in wet, dirty environments, and fungal hyphae are one of the best fishing foods for these insects. The main way of harm is to bite the hyphae and destroy the normal growth of the hyphae, resulting in mycelium weakness or death. at the same time, it also creates conditions for the infection of miscellaneous bacteria, which makes some competitive miscellaneous bacteria multiply and produce antibiotics on the damage spots of mushroom mosquitoes. cause disease and further destroy the mycelium of Lentinus edodes, resulting in a vicious circle. In addition, jumping insects, mites, nematodes and so on will also take advantage of the opportunity to multiply and do harm in the bite spots, aggravating the harm. The comprehensive effect of insect and disease resulted in mycelium autolysis, loose culture medium and cross-flow of black water.

After 2-3 weeks of damage to the artificial mushroom wood, the larvae of the mushroom mosquitoes hardened their pupae, and after 3-7 days of pupal stage, they emerged into adults and flew out. On the same day the adults flew out, they mated and laid eggs quickly. Each female can lay dozens to 300 eggs. After the damage of the mushroom segment, the disease spot produces a special delicacy, which is very attractive to the mushroom insect. Therefore, mushroom mosquitoes often return to the disease spot to lay eggs, causing damage to the next generation.

2. Comprehensive control measures of mushroom mosquitoes.

1. Clean up the waste culture materials in time. In the process of Lentinus edodes harvest, the abandoned mushroom wood should be picked out and stored in a timely manner. As soon as the harvest is over, all the mushroom wood should be removed from the shelf and centrally stacked, and the mushroom shed should be thoroughly cleaned. The waste pile should be far away from the fungus place of the next batch of mushroom wood, sprinkle 5% lime water in the pile, and then spray 200 times dichlorvos liquid on the heap surface and cover it with plastic film, which can not only promote fermentation ripening, but also kill insects and sterilize. After 40 days, the waste can be used as organic fertilizer; at the same time, biogas digester should be encouraged to reduce the consumption of forest resources, purify environmental pollution and reduce insect pests.

two。 Keep the fungus place and mushroom place clean. Before stacking, the fungus sending place and the mushroom shed, including the artificial mushroom wood stacking place and the surrounding environment should be cleaned, disinfected with lime powder or bleach powder, insecticidal and sterilized. Mushroom forest should be arranged, turned over in time, punctured and ventilated in time, and management should be strengthened to improve the ability of mushroom to resist diseases and insect pests. The domestic garbage, waste mushroom wood, feces and sewers around the site should be strictly cleaned up.

3. Correctly master the methods of controlling mushroom mosquitoes. There are four main methods to control mushroom mosquitoes: spraying, injection, digging, trapping and killing.

① spray. Spray is the key measure to kill the adult Mushroom mosquito. The adults can be killed in time by spraying, and the number of eggs laid by adults can be greatly reduced. A special insecticide for mushrooms can be used to kill adults. The drug has the dual effects of contact and stomach toxicity, and the effect is long-lasting. Generally, it is sprayed once before piercing ventilation, and then spraying again when peeling the bag (except mushroom) can effectively prevent adults from spawning again.

② injection. For the mushroom mosquito larvae damaged in the tube bag, 300 times dichlorvos solution can be used to inject the disease spot, 0.5 million ml per centimeter in diameter, not excessive.

③ dug up. Is to dig out the disease spot, remove the black sawdust, and then apply lime water, while burning or deeply burying the diseased spot sawdust in time.

④ entrapment. According to the tendency of mushroom mosquitoes to disease spots, some mushroom trees with serious damage caused by mushroom mosquitoes were selected as bait in the stacking place of artificial mushroom wood, and a small amount of carbofuran was applied in the tube to induce them to lay eggs to kill them.