First, pepper wilt
Pepper fusarium wilt is a fungal disease. In the early stage of onset, the leaves of the peppers turn yellow, and the plants quickly wither. The cortex of the roots and bases of the stems turn brown and rot. The xylem darkens and depletes. When the humidity is high, blue and white molds appear on the diseased parts, and the necrotic sites develop from the outside to the inside. concentrated. The disease is prone to occur under conditions of heavy rain and humidity.
Control medication: First remove the diseased plants, then use the withered spirit, can kill, carbendazim and other irrigation roots 2 to 3 times, each strain irrigating solution 500g.
Second, pepper wilt
Pepper bacterial wilt is a bacterial disease. In the early stage of the disease, the leaves near the growing point suddenly wilted and recovered at night, and the whole plant became blue and dry. The vascular bundle of the stem of the diseased plant turns brown and rot, and the diseased stem is inserted into the transparent glass of water, and milky white mucus overflows, that is pathogenic bacteria. Bacterial wilt belongs to a soil-borne disease, and is mostly infected from root wounds.
Prevention and control should pay attention to: 1, the implementation of flood and dry rotation. 2, acidic soil lime to improve the soil. 3, remove diseased plants. Drug control can be used to irrigate streptomycin sulfate 2 or 3 times.
Third, pepper root rot
Capsicum root rot is a fungal disease. In the early stage of disease, the branches and leaves wilted during the day and returned to normal from early evening to early morning. The whole plant withered later, and the root cortex was brown and rotten. It was easily peeled off and the xylem was dark.
Control medication: Root rot, carbendazim and other irrigation root 2 to 3 times.
Four, physiological withered
1. Breathing caused by the accumulation of water in the roots suffocates and decays.
2. Excessive fertilization concentration or application of granular fertilizer near the base of the stem causes burning of rhizomes and causes wilting.
3. Drought loss caused by water loss.
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