Symptoms: After the cabbage is wrapped, water-soaked soft rot occurs in the base of the stem or in the cabbage. After the plant is brown, the outer leaves wilted and fall off leaving the leaves exposed.
Control methods:
(1) Deeply turn the sun. Before planting, deep plow soil layer is 18 cm to 20 cm, pay attention to drainage in rainy season, implement furrow irrigation, do not flood irrigation, do not water on cloudy days and at noon, and rotate with onion and garlic crops.
(2) Control of vector-borne insects. Do not injure the plant and cause a wound during field farming.
(3) remove diseased plants. The diseased point is disinfected with lime.
(4) Chemical control. Spraying should pay attention to spraying the petiole and rhizome close to the ground. The following agents are commonly used: 72% agricultural streptomycin WP or 72% neomycin, 3000-4000 times liquid or copper hydroxide ) 600 times liquid spray control, once every 5-7 days, for 2-3 consecutive days.
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