Pepper aphids gather as adults and nymphs on the back, young leaves, pedicels and fruits of the host to suck juice. The damaged leaves are yellow and curly, the plants are short and stunted, and even wither and die seriously. In addition, aphids are also the vectors of many viruses, leading to the epidemic of melon and vegetable virus diseases and serious crop yield reduction.

After aphids grow on peppers, the planting site should be properly cleaned. First of all, we should uproot all the weeds around the pepper field with a shovel, and at the same time burn all the rotten leaves of fallen leaves to prevent the existence of insect sources in weeds and fallen leaves, so that aphids can appear on healthy pepper plants.

Pepper plants with aphids can be sprayed with chemicals. It is necessary to buy special metalaxyl, Dolebao emulsion or agricultural pesticide from the market, dilute the pesticide according to the instructions and pour it into the watering can, and then spray the pesticide on the pepper plants with the watering can to eliminate aphids on the plants.

Cultivation method of pepper

1, soil preparation

Pepper is suitable to grow in slightly acidic or neutral soil with rich nutrition, ventilation and drainage. In the process of cultivation, humus soil and sandy soil can be mixed to make nutrient soil, and decomposed organic fertilizer can be applied to the soil as base fertilizer to create a fertile soil environment for pepper.

2. See the light reasonably

Pepper likes sunny environment, and the growth period of pepper is short in areas with high temperature and strong sunshine. Therefore, in the breeding period, pepper should be placed in a sunny place, so that plants can fully absorb sunlight, carry out photosynthesis, transform more organic matter and promote their own growth.

3. Proper water supply

Although pepper is afraid of waterlogging, it has a certain demand for water. Without water, there will be yellow leaves and dead leaves. When planting pepper, water it according to the dry humidity of soil and the condition of leaves. Once the soil is dry and white, and once again when the leaves are dark and green.