Cabbage Diseases and Pest Control Heavy "Three Phases"

In the seedling stage, the aphid can be sprayed with 50% evasion mist 2000-2500 times or 20% locust 1000 times, and prevent other pests; the cabbage field with heavy anthracnose should use 50% anthrax in time. Wettable powder 500 times spray; cabbage virus disease can be controlled by 20% virus A wettable powder 500 times spray.

Rosette period is often the first peak of downy mildew in the mid-to-late September. It is necessary to strengthen the cultivating and weed control, control the water, and appropriate seedlings to increase the resistance of the plants. Downy mildew can be sprayed with 40% diethylaluminophosphate wettable powder 400 times or 64% antivirus WP 600 times or 75% chlorothalonil wettable powder 600 times spray; 50% sea fleas available Due to WP 1000 times spray control, and prevent bacterial leaf spot and black rot.

After the Chinese cabbage enters the heart-filling period, it is necessary to strengthen fertilizer and water management, timely drainage and irrigation, ensure that the soil has sufficient water, and prevent the surface from cracking, so as not to damage the roots. After the rain, remove the stagnant water in time so as not to induce a variety of diseases. Timely topdressing, Mushi compound fertilizer 8-10 kg, in order to promote the growth of Chinese cabbage and increase its resistance. In the later period, it is necessary to stop top dressing so as not to make the cabbage grow long. According to the main types of diseases and pests, the corresponding pharmaceuticals should be selected according to the corresponding control methods to seize the favorable opportunity before cabbage ridges are applied for prevention and treatment. The herbs should be stopped before the harvest for half a month.

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