How to prevent and control the pollution of miscellaneous bacteria in mushroom cultivation

The main miscellaneous bacteria in mushroom cultivation are Trichoderma viride, Qulao and so on, which is one of the most common bacteria in seed production and clinker production. This kind of mold likes high temperature and humid environment, such as Trichoderma can survive in soil and organic materials or cracks in the wall for a long time, and spread through air, soil-covering materials, tools and so on.

1. Preventive measures are: use eliminate virus mushroom shed thoroughly to remove all diseases without trace; spray germicidal drugs every 5 days or so during the period of infection and mushroom emergence, and alternately use all diseases without trace and mushrooms to kill disease spirits in production.

two。 For mushroom sheds where contamination has occurred, open all vents and entrances and exits to enhance ventilation; at the same time, spray all diseases without trace, and then deal with contaminated bacteria bags.

3. For spot pollution: take 100 times Xiaomiwang solution injection killing measures, such as miscellaneous bacteria spore system germination from the base material, increase the concentration to about 50 times, and deep into the needle, so that the liquid exudates from inside to outside, the killing effect can reach 100%. Note that the needle insertion point should be above the contamination point, oblique insertion and injection, so that the contamination point is close to the ground.

4. For spotty pollution: the method of injecting drugs can also be adopted, but the dosage should be increased, and the method is the same as above.

5. For continuous pollution: when it is difficult to inject drugs, you can cut open the cross of the contaminated plastic film, open the plastic film, and brush the liquid, which is only suitable for the germination of the surface of the substrate, and must be detected early. Otherwise, it can be supported and sprinkled with medicine powder, and then the plastic film will be put back into place, and its killing effect is good.

6. Pollution of about 50% of the area of the bacterial bag: it can be dealt with flexibly according to the situation, such as the edible fungus seedling silk has been sent to more than half, that is, the base material has been connected by the mycelium, the plastic bag can be removed, and the bacterial column is soaked with 150 times mildew king solution. then cover the plastic film to grow bacteria. If the pollution is heavy and the number of edible fungus hyphae is small, you can longitudinally cut 3 to 5 openings of the mushroom bag, loosen the plastic film and wash it for a little longer time, and then leave the fungus static.

7. If pollution occurs in a large area, the pollution time is more than 15 days, and the contaminated bacterial bags account for about 70%, the batch of bacterial bags have almost no retention value. After cleaning all the bacterial bags out of the shed, there are two treatment methods: 1. After setting up a sunshade and carrying on the normal eliminate virus treatment, the uncontaminated or lightly polluted bacterial bags were treated according to the above, and the bacteria were cultured under the sunshade, which would lose the value of direct retting fertilizer; 2. Pour the contaminated bag, take advantage of the fine weather, add lime powder according to 2% of the dry material weight, mix well, then dry it, and use it as raw material for clinker cultivation or fermentation.

8. After cleaning the shed, clean the shed thoroughly, spray every disease twice every 2 days without a trace, remove the mulch, close all vents and entrances and exits, and deal with it. After about 3 days of high temperature, the ideal germicidal effect can be achieved, and then it can be re-cultured in the bag.