Pepper Disease and Pest Control Techniques and Methods
A brief knowledge sharing with you about the experience related to the cultivation of flowers for pepper disease and pest control techniques and methods, please see the detailed introduction below.
Pepper Disease and Pest Control Techniques and Methods
When planting peppers, it is necessary to control the spacing to ensure ventilation and light penetration, manage water properly to prevent excessive moisture in the field, clean the garden in autumn and winter, clear away dead branches and leaves, burn them集中ly, and after the onset of the disease, spray fungicides such as rust prevention and thiophanate-methyl. In case of pest infestation, spray matrine, kanamycin, imidacloprid, matrine, azadirachtin, and use yellow boards to attract aphids.
Common Diseases in Pepper Cultivation
1. Mosaic disease: The upper leaves of the affected plants first show a pattern of dark and light green mosaic. In severe cases, the leaves turn yellow, the plants grow weak with short internodes, and the flowers are abnormal and few.
2. Virus disease: It mainly affects the growth of pepper leaves and fruits, causes irregular chlorosis in the affected parts, the fruits are deformed, uneven, and easily fall off.
3. Bacterial wilt: The roots of the affected plants turn brown and rot, and the stems near the ground can turn brown when cut cross-sectionally, secreting milky white bacterial fluid. In the later stage, the affected plants wither and die rapidly, but the stems and leaves remain green.
4. Soft rot: It mainly harms the growth of fruits, initially presenting as water-soaked dark green spots, which later turn brown and rot. When external force is applied, it is easily shed, and if not shed, it will hang dry and leave a white skin.
Main Pests in Pepper Cultivation
1. Cotton bollworm: Cotton bollworm is a common pest during pepper growth, which not only affects the growth of peppers but also other solanaceous vegetables, harming the growth of buds, flowers, and fruits. The buds turn yellow-green and then fall off naturally, gnawing on the fruit peduncles, causing rainwater or bacteria to enter the fruit, leading to fruit drop.
2. Aphids: If peppers are affected by aphids, the leaves become malformed and curly, the overall plant growth weakens and becomes dwarf, leading to reduced yield. Aphids can also spread other viruses, causing pepper diseases.
3. Sweet potato whitefly: Sweet potato whitefly mainly harms leaf growth, making it easy for leaves to become infected with diseases and also affects the production of photosynthetic products in leaves, thus affecting the expansion of pepper fruits.
4. Tobacco caterpillar: The larvae of tobacco caterpillar gnaw on pepper buds, flowers, and fruits, causing rot and drop of the buds, flowers, and fruits that are eaten, greatly reducing the yield of peppers. In severe cases of tobacco caterpillar infestation, the loss rate can reach between 30-80%.
Pepper Disease and Pest Control
1. Disease: When planting peppers, it is necessary to control the spacing to ensure ventilation and light penetration, manage water properly to prevent excessive moisture in the field, clean the garden in autumn and winter, clear away dead branches and leaves, burn them集中ly, and after the onset of the disease, spray fungicides such as rust prevention and thiophanate-methyl.
2. Pest: Timely pruning of diseased branches and leaves, and during the initial stage of pest infestation, spray matrine, kanamycin, imidacloprid, thiamethoxam, and clothianidin. Aphids can be attracted with yellow boards or sprayed with imidacloprid and bromocyclene. Tobacco caterpillars can be sprayed with matrine and azadirachtin.
The above is a method introduction about pepper disease and pest control techniques and methods for reference.