Detailed Explanation of the Latest Prevention and Control Measures for Deformed Fruit in Bell Peppers

There are many varieties of chili peppers, and bell peppers are among the transplanted ones. Many friends often cultivate them in greenhouses during winter and spring. However, because this year's situation is rather special, some vegetable farmers have been a bit lax in management. By the time the fruit sets, they find that many bell peppers cannot hold their fruit, and even if they do set fruit, it is deformed. So how should this situation be prevented and treated? Let's learn about it together with the editor.

1. Temperature regulation during the flowering period

After the bell pepper sets fruit, be careful that the temperature does not get too low. If the temperature inside the greenhouse exceeds 35°C, or stays above 32°C for more than two hours, the pepper will show poor pollination or fertilization. Deformed fruit in autumn is mainly caused by high temperatures. The same symptoms also appear after fruit set around spring. The fruit often looks like a peach, and there are no well-developed seeds inside. Therefore, try to avoid excessively low air or soil temperatures in the greenhouse, which affect normal fruit set in bell peppers. Before and after fruit set in spring, compound fertilizer and biological bacterial fertilizer can be applied as a top dressing to increase the fruit-setting rate.

2. Balanced fertilization

When bell peppers lack elements such as boron and calcium, deformed fruit appears, or the seeds develop incompletely. Therefore, in addition to soil fertilization, attention should also be paid to foliar spraying. Regularly spraying foliar fertilizer containing elements such as boron and calcium can effectively promote fruit set in bell peppers. With balanced fertilization, reduce nitrogen fertilizer application as much as possible and increase potassium fertilizer, such as monopotassium phosphate and potassium sulfate compound fertilizer, which is beneficial for fruit set.

3. Adjusting growth vigor

The growth vigor of bell pepper plants also has a certain effect on fruit set. If vegetative growth is delayed, causing the plants to grow excessively, the probability of deformed bell pepper fruit increases. Growth can be adjusted by spraying growth regulators or by pruning and removing side shoots to promote fruit set. If the bell peppers themselves cannot hold fruit, the nutrients will be absorbed by the plants, causing excessive vegetative growth. At this time, spraying chlormequat and daminozide can inhibit plant growth. When spraying, do it on a sunny evening. Temperature control mainly means controlling night temperature in the early stage to avoid delayed vegetative growth and insufficient reproductive growth, which affect the fruit-setting rate.

4. Spraying naphthaleneacetic acid

You can also spray naphthaleneacetic acid during the flowering period of bell peppers, once every 7-10 days, for 4-5 consecutive sprays. This can significantly increase the fruit-setting rate of bell peppers, promote fruit growth, and thereby increase the number of fruits and single-fruit weight.

The above is an introduction to prevention and control measures for deformed fruit in bell peppers. We hope it can help you. To learn more related knowledge, please stay tuned to us.