What are the common diseases in the process of growing garlic?
What diseases affect garlic? How to prevent and control them? Please introduce. I. Types of garlic diseases. 1. Round leaf (also called barrel): This disease mainly shows up in the period before the garlic scape emerges, when the top leaves of the garlic form a barrel shape that tightly wraps the scape inside the barrel, causing the scape to become trapped or break. 2. Garlic branching: that is, multiple branches on one plant...
What diseases affect garlic? How to prevent and control them? Please introduce
I. Types of garlic diseases
1. Round leaf (also called barrel): This disease mainly shows up in the period before the garlic scape emerges, when the top leaves of the garlic form a barrel shape that tightly wraps the scape inside the barrel, causing the scape to become trapped or break.
2. Garlic branching: that is, multiple branches on one plant, with nutrients dispersed, so the main scape lacks nutrients and is thin and weak.
3. Spots: This disease mainly shows up before the garlic scape emerges, with spots appearing on the surface of the scape, including white spots, yellow spots, red spots, etc., causing the scape to rot or become moldy.
4. Garlic scape husk turning red or flowering: A good garlic scape has a green husk and does not flower, while an infected scape, as soon as it emerges and before it bends down, has a husk that turns red and flowers.
5. Leaves turning yellow, withering and dying: This is a relatively serious garlic disease. Once this disease appears, it will spread and expand, and may even cause large patches or entire patches to wither and die.
II. Causes of the diseases
1. Aging garlic seed. Variety aging and degeneration lead to more diseases.
2. Aging soil with more residual pathogens. Repeated continuous cropping, planting corn (2349, 8.00, 0.34%) in garlic fields; planting garlic in corn fields, so the land cannot be deep plowed, weeds grow in clusters, and pests and diseases are extremely numerous.
3. No organic fertilizer. Especially no organic fertilizer such as pig manure and chicken manure, causing soil compaction and worsening salinization.
III. Fundamental solutions
1. Do a good job of crop rotation to prevent soil aging. Garlic plots should be adjusted frequently.
2. Deep plow the land to reduce weeds, pests and pathogens. Deep plowing can bury weeds, pests and pathogens remaining in the surface soil deep underground, achieving the purpose of sterilization and pest elimination.
3. Spray pesticides in time to control pests and ensure that the normal growth of garlic is not affected by pests and diseases.
4. Apply more organic fertilizer, especially pig manure and chicken manure, to keep the soil loose and soft, and provide a high-quality ecological environment for the good growth of garlic.
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