Measures to Prevent Early Blight of Celery

The celery early blight, also known as spot disease, generally occurs under cold and humid conditions and is a major disease that affects the quality and high yield of celery. Control measures include:

1. Rotate crops and rotate crops with other vegetables for 2-3 years, timely spraying new high-fat membranes on the ground to protect the soil from evaporation, soil compaction, and isolation of pests and diseases.

2, select resistant varieties. When seeding, disease-free seeds should be used. Seeds should be gradually soaked in water at 48°C for 30 minutes, transferred into cold water, cooled, and then the seeds should be removed by drying. Before seed dressing with a new high fat film, isolate the virus infection, strengthen the respiratory intensity, and increase the germination rate of leek.

3, strengthen fertilizer and water management. Proper close planting, scientific water use, drought-proof and flood-proof during growing season, flooding should be prevented when flooding, ventilation should be strengthened, humidity should be reduced, and the new high-fat membrane should be sprayed to prevent water vaporization. The vegetable stalks should be sprayed at the appropriate time during the growth period of celery. The spirit can make the stem thick, thick leaves, fresh leaves, and improve the anti-disaster ability of celery.

4, pharmaceutical control. At the early stage of disease, diseased leaves were removed in time, and a new high-fat film was added together with a spray agent to form a protective film to enhance the efficacy and prevent the invasion of gas-borne pathogens.

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