Control techniques of mixed bacteria in Gastrodia elata

Gastrodia elata rhizome has extremely high medicinal and health value, is one of our traditional precious Chinese medicine, because of its high economic value, so many people are breeding. However, for farmers, gastrodia elata miscellaneous bacteria to gastrodia elata great harm, the following and small series together to see gastrodia elata miscellaneous bacteria control technology bar.

1. Harm of Gastrodia elata

Miscellaneous bacteria is in the process of microbial isolation, and pure culture and isolation of different strains of other species, common 1 miscellaneous bacteria are Trichoderma, Penicillium, Mucor, Rhizopus, Alternaria, etc. With the increasing aggravation of gastrodia elata miscellaneous bacteria, gastrodia elata appears quality degradation, commodity morphology deterioration, yield decreased year by year, even there will be a phenomenon of extinction, once infected with miscellaneous bacteria, gastrodia elata production will bring destructive harm.

II. Prevention and control techniques

1. Carefully check the bacterial branches and sticks

Miscellaneous bacteria like to grow in a saprotic environment, so when making culture sticks, we should choose fresh wood that is not decayed and free of mold, and at the same time shorten the culture time as much as possible. Once miscellaneous bacteria are found on the sticks, they should be removed immediately and exposed to sunlight for 1-2 days. If there are many miscellaneous bacteria, they should be discarded in time.

2, hemp seed disinfection

Before inoculation, carefully check hemp seeds. If mold infection is found, first scrape off the sun, or use it after local disinfection with 75% alcohol, carbendazim, etc. If damaged or moldy hemp seeds are found, discard them in time.

3. Strengthen management

When filling, it must be filled, and no gaps must be left. At the same time, it is necessary to strengthen the management of temperature, humidity and air, control the humidity in the cave, and keep the environment dry, so as to reduce the generation of miscellaneous bacteria as much as possible.

4. Tianma acupoint should not be too large or too deep

The best cultivation method to prevent infection of miscellaneous bacteria is to cultivate hemp with less number of bacterial sticks.

5. Increase the dosage of Armillaria mellea

If you put too many branches or strains, the bacteria will grow fast and inhibit the growth of other miscellaneous bacteria. It is also a good control method.

The above is the introduction of the prevention and control technology of Gastrodia elata, I hope to help you, if you want to know more about the relevant knowledge, please pay attention to us.