How to prevent the disease of cabbage seedlings in greenhouse?
2023-11-28 14:09:39
How to prevent the disease of cabbage seedlings in greenhouse?
Soil treatment. Before the cabbage is planted, it is mixed with insecticide and chemical fertilizer and then applied to the soil to kill the eggs and larvae of the fly.
Foliar spray. When the Chinese cabbage grows to 2-3 true leaves, the vegetable sprouts can be grown vigorously with the vegetable strong stems + new high fat film, the stems are thick, the leaves are thick, and the high yield and quality are high. Pay attention to the prevention of pests in the growing season. When the Chinese cabbage grows to 6-8 leaves, it can be mixed with herb ash, lime powder and insecticidal powder to prevent larvae around the vegetable roots.
Medicinal roots. Roots mainly harm the roots of Chinese cabbage. When the leaves of cabbage are changed, roots are applied with insecticides to fill the roots, killing the roots and reducing the harm.
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