Sweet (hot) pepper is also known as sunburn, which is a common fruit disease in the middle of the summer. Sometimes the rate of disease is as high as 10% to 30% or even more. The diseased part is often infected with anthrax or other bacteria, causing moldiness or rot. This reduces the fruit rate and is not conducive to transportation and storage, resulting in varying degrees of loss. The disease also occurs in tomatoes and eggplants.
Symptoms of the disease occur in fruit development. The fruit turned green on the sunny side to form a shiny, almost transparent, leathery texture, followed by yellow-brown or gray-white patches, followed by enlargement of the diseased area, slight wrinkles, shrinkage and hardening, slight depressions, and necrosis of the flesh tissue with brown patches. Afterwards, the diseased area was infected with germs, which grew black or pink mold layer and even rotted.
Control methods First, rational close planting. Ridge planting double planting, the number of plants per acre from 5000 to 6000 strains increased to 9000 to 10000 strains, in the heat of the summer can make the pepper leaf coefficient increased by 1 times, leaves mutual shade and disease prevention.
Second, intercropping corn or high stalk vegetable beans, kidney beans. The use of biological barriers to shade, promotion of shade nets to cover more summer cultivation, and lower temperatures and soil moisture can all improve the microclimate in the field and reduce the incidence.
Third, strengthen water and fertilizer management. Especially during the fruiting period, it should be timely and evenly watered to keep the ground moist, increase the application of phosphorus and potassium fertilizers, promote fruit development, and reduce disease.
Fourth, timely prevention and control of pests and diseases. Prevent early defoliation due to anthrax, viral diseases, scab, and locusts and ticks.
Symptoms of the disease occur in fruit development. The fruit turned green on the sunny side to form a shiny, almost transparent, leathery texture, followed by yellow-brown or gray-white patches, followed by enlargement of the diseased area, slight wrinkles, shrinkage and hardening, slight depressions, and necrosis of the flesh tissue with brown patches. Afterwards, the diseased area was infected with germs, which grew black or pink mold layer and even rotted.
Control methods First, rational close planting. Ridge planting double planting, the number of plants per acre from 5000 to 6000 strains increased to 9000 to 10000 strains, in the heat of the summer can make the pepper leaf coefficient increased by 1 times, leaves mutual shade and disease prevention.
Second, intercropping corn or high stalk vegetable beans, kidney beans. The use of biological barriers to shade, promotion of shade nets to cover more summer cultivation, and lower temperatures and soil moisture can all improve the microclimate in the field and reduce the incidence.
Third, strengthen water and fertilizer management. Especially during the fruiting period, it should be timely and evenly watered to keep the ground moist, increase the application of phosphorus and potassium fertilizers, promote fruit development, and reduce disease.
Fourth, timely prevention and control of pests and diseases. Prevent early defoliation due to anthrax, viral diseases, scab, and locusts and ticks.
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