Timely prevention and control of celery root knot nematodes in solar greenhouse


Root knot nematode disease is a common devastating disease in the celery field in the solar greenhouse. The lighter ones reduce production by 20-60%, and the severe cases are not harvested. Due to the limited conditions of the solar greenhouse, it is difficult to make a round of teasing, which is the most troublesome solar greenhouse disease for vegetable farmers.

Prevention and control of celery root knot nematode disease should be based on prevention. Firstly, choose the oysters that do not grow vegetables for many years to establish a solar greenhouse. Secondly, celery seedlings should be selected as disease-free plots for chemical treatment to prevent celery seedlings from disease; For prevention and treatment, the main drugs are avermectin and thiazolyl. The dosage is 2,000 mg of avermectin granules per 667 m or 2000% of thiazolyl granules of 2000-3000 g. When transplanting, 1.8 is used during growth. % arbutin 3000-4000 times solution, 500 grams per plant, can better control celery root knot nematode disease, to ensure the benefits of celery.


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