How to control Gastrodia elata tuber rot

The main results are as follows: (1) the tuber skin of the symptom Gastrodia elata tuber rot is yellow, the central tissue is rotten, and the interior of the tuber is in a state of heteroodorous slurry. Some of the upper Gastrodia elata tubers rotted and atrophied, while some of the upper parts rotted or cortical necrosis, while the lower Gastrodia elata will not suffer or suffer.

(2) Prevention and control methods

(3) strict selection of bacterial materials and beds.

When planting Gastrodia elata, the fungus material and bed should be strictly selected. If there is a fungus infected by miscellaneous bacteria, it is better not to use it.

① strictly chooses flax. When selecting seed hemp, do not use locally rotten seed hemp, plant the diseased seed hemp into the cellar.

② strengthens field management. Controlling the appropriate temperature and humidity and avoiding long-term stagnant water in the pit are the fundamental measures to prevent and control the occurrence of rot.

③ pay attention to the selection of environment. The sites with few diseases are selected to cultivate Gastrodia elata, but disinfection treatment should be carried out.

Pay attention to cold prevention measures at ordinary times. When overwintering, spring hemp should take cold-proof measures to ensure safe overwintering. If you cannot survive the winter safely, you should harvest before overwintering.