How to control diseases and insect pests of Gastrodia elata
There are two kinds of common diseases in Gastrodia elata cultivation, one is mold harm, the other is rot disease.
Rot disease and its control
Gastrodia elata rot is caused by a variety of causes, such as insect pests, mechanical damage, or in bad high temperature and humidity environment, it is easy to be infected by miscellaneous bacteria and cause rot. Tree protection generals are used to spray the plant surface, disinfect and sterilize, prevent diseases and insect pests, and improve plant disease resistance. New high-fat film should be added to strengthen water management in the field to prevent drought, waterlogging and preserve soil moisture.
Spraying Gastrodia elata on the plant surface in the middle and later stage of Gastrodia elata growth promotes the transport of leaf photosynthesis products to the root system, improves the nutrient conversion rate and soil loosening ability, makes the rhizome expand rapidly, greatly increases the content of effective substances, and improves the quality.
Prevention and cure measures
① should pay attention to the regulation of temperature and humidity to provide the best conditions for the growth of Armillaria mellea to inhibit the growth of miscellaneous bacteria.
② chooses intact, non-lacerated and brightly colored white-headed hemp or water hemp as provenance to avoid bruising and sun exposure during excavation and transportation.
The culture material of Gastrodia elata planted by ③ had better be accumulated, disinfected and dried to kill the internal insects, pupae and bacteria so as to reduce the harm.
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The main results are as follows: 1. Variety characteristics, plant height 30~40cm, development degree 20~30cm, leaf lanceolate, long 40cm about, wide 6~10cm, green, smooth leaf surface, cold and heat resistance, moss resistance, strong adaptability, can be cultivated in open field and protected field all the year round, the seed consumption per mu is 30g / mu. 2. Disease
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