Through field observation, it was a disease of pepper bacterial leaf spot; pepper bacterial leaf spot mainly damages the leaves, and initially appeared yellow-green irregular water-soaked small spots, which turned dark brown to rust after disease prevention and control. Quality, size, etc. When dry, the lesions are mostly red-brown, and the lesions are brittle and sometimes perforated. When the humidity is appropriate, the disease is rapidly expanding. The diseased plants in individual leaves do not affect the growth. In severe cases, the leaves may fall off or the whole plant may die. Bacterial leaf spot disease is obvious at the junction of the health, but not uplift, unlike scab. The pathogenic bacteria overwintered on the seeds and the diseased bodies. When the conditions were appropriate, they were invaded from the wounds of the leaves. The plots with high temperature, high humidity, and poor drainage were prone to onset, and the onset of continuous overcast and rainy nitrogen fertilizers was heavy.
Control methods:
1. Strengthen the management of greenhouses, timely ventilation, proper control of watering, timely ventilation and dehumidification after watering, and avoid diseases caused by high humidity.
2. Available 2% chloramphenicol 1500 times liquid + agricultural energy 750 times liquid or 72% streptomycin 4000 times liquid + Jin Tailong chaffy treasure 600 times or 20% Yezizole 1000 times liquid + 518 liquid fertilizer, 5 - Spray once in 7 days, spraying once in 3-5 days in severe cases, which can effectively prevent and control the occurrence.
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