In the rainy season from July to September every year, the incidence of green pepper bacterial wilt is more serious, which has become an important issue that plagued the green pepper growers. Through practical exploration, summarize the following prevention and control suggestions:
I. Agricultural measures
1, select disease-resistant varieties, timely dumping, avoiding repeated cropping.
2. During the site preparation, 100-150 kilograms of plant ash or slaked lime are used for soil preparation. The pH of the soil is adjusted, and rooting is less when transplanting.
3, ridge cultivation, to reduce the accumulation of water in the rainy season. Cultivate the soil in a cultivator to keep the soil loose and breathable.
4, strengthen fertilizer management, rejuvenation growth potential.
Second, drug treatment
Before the onset of disease, it can be sprayed with 14% solution of ammonia and 300 times liquid, 77% can be used to kill WP 500 times, and 72% can be used to prevent Streptomycin Sulfate. It can be sprayed 4000 times every 7-10 days. Spray 2-3 times. The diseased plants were found and immediately removed. The soil near the diseased plants was filled with 20% formalin solution or 20% lime water for soil disinfection. In the early stage of disease, 50% dexamethasone 1000 times liquid, 72% agricultural streptomycin sulfate WP 4000-5000, 70% DT, 47% Garneton 500, or 14% Ammonia copper 300 times liquid irrigation roots, irrigation every 10-15 days, even irrigation 2-3 times.
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