Detailed Explanation of the Causes of Pepper Overgrowth and Control Measures

Pepper is one of the most common vegetables in our daily lives, and it is grown all over the country, but anyone who grows it knows that pepper is highly prone to overgrowth. After overgrowth, the pepper stems become thin and weak, the leaves become large and thick, the flowers become small and weak, and no fruit is set, which seriously affects the yield and returns. So what causes pepper overgrowth? How should it be controlled? Let us learn about it together.

I. Causes of overgrowth

There are many causes of overgrowth in normal pepper plants. When the temperature is too high, especially when the night temperature is too high, once the night temperature is above 20 degrees, the respiration of the plant increases, nutrients are consumed excessively, and overgrowth occurs. When light is weak, during continuous cloudy and rainy weather or when the field is too densely shaded, the photosynthesis of the leaves is weakened, nutrient synthesis is reduced, and the phototropism of the plant causes the stems and leaves to compete for light, thus resulting in overgrowth. When field humidity is high, or during continuous cloudy and rainy weather, or when watering is too frequent, the stems and leaves of pepper plants will also overgrow. When nitrogen fertilizer is applied excessively during fertilization, it will also cause the plant to overgrow.

II. Control measures

1. Cultivate strong seedlings

Before planting, complete the preparatory work such as land preparation and fertilization, and ditching for drainage, so that the seedlings grow in an environment with relatively high humidity and relatively high temperature, plus sufficient nutrients, making their growth robust and helping them recover after transplanting.

2. Plant at the right time

When pepper seedlings grow to 5-6 leaves, they can be planted. After planting, spray chemicals such as Daconi or Amistar once every 10 days to prevent diseases.

3. Ventilation and pruning

After the seedlings recover, maintain a certain temperature, ventilate to reduce humidity, and the nighttime temperature must not be lower than 15 degrees. Ventilate both day and night. When entering the high-temperature period of summer, shade nets can be used to provide shade and lower the temperature. In the middle and late stages of plant growth, properly prune branches and remove leaves to increase air and light penetration between plants and avoid overgrowth caused by a too densely shaded field.

4. Control methods

When the base fertilizer is sufficient, generally there is no need to water or fertilize before flowering and fruiting, especially when plastic film mulching cultivation is used. After fruit set, water and fertilize according to the situation. However, the amount of nitrogen fertilizer applied must be controlled to avoid overgrowth caused by excessive application. During the flowering and fruiting period, coordinate the vegetative growth and reproductive growth of the plant, so that excessive vegetative growth does not affect normal fruit set, and at the same time use growth regulators to control vegetative growth.

5. Remedial measures

For plants that have already overgrown, spray chlormequat or daminozide to control excessive vigor. For severe flower and fruit drop caused by overgrowth, spray a naphthalene acetic acid solution.

The above is an introduction to the causes of pepper overgrowth and control measures. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.