It may be garlic blackhead disease. The symptom is that peeling the stored garlic petals will cause black spots. Similar to mold, it will gradually become larger and become concave, which will affect the storage quality of garlic.
How to prevent:
1. Garlic seeds are sterilized and seeded before sowing, and the bacteria are killed during the period of garlic seedlings to protect the seedlings.
2. If it is found to be in serious need of spraying a large area before harvesting, enhance the resistance of garlic.
3. When harvesting garlic, try not to damage the protective surface of garlic, ie the outer membrane, to reduce the invasion of pathogens. And the harvested garlic is stored in a place where the humidity and humidity are low to reduce the germ propagation.
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