What causes flower and fruit drop in sweet peppers?

Growing sweet peppers is now very common in our country, with wide distribution in both the north and the south. When growing sweet peppers, we need to do a good job of management, and careful management is the key to ensuring the normal growth of sweet peppers. If management is poor, sweet peppers will develop many problems that affect their yield. One of these is flower and fruit drop in sweet peppers. So what causes flower and fruit drop in sweet peppers? Below, the editor will give you a brief introduction. Let's take a look together!

1. Temperature causes

Temperature is one of the main causes of flower and fruit drop in sweet peppers. When growing sweet peppers, if the temperature exceeds 35°C, the flowers and floral organs of sweet peppers will develop poorly as a result. The stigma of the style is prone to drying out, which affects pollination and fertilization of the flowers, causing flower and fruit drop. In addition, in summer, when nighttime temperatures are high, plants are prone to excessive vegetative growth, which also leads to flower and fruit drop. So, during the day, we can lower the temperature by methods such as splashing mud slurry, and at night we can open ventilation openings to cool things down. During the flowering period, the temperature should be kept at around 25°C, with a day-night temperature difference of about 10°C.

2. Nutritional causes

During growth, sweet peppers have a relatively large demand for nutrients and water. If the soil is dry and lacks water, it will affect the absorption of fertilizer and water by sweet peppers, resulting in flower and fruit drop. However, water should not be too much either. If there is too much, the soil becomes too sticky and heavy, which affects root respiration and growth of sweet peppers, and may even cause root rot. So the soil should mainly be kept neither dry nor wet. Then, when fertilizing, ensure comprehensive nutrition and use nitrogen, phosphorus, and potassium fertilizers in a balanced way. If there is too much nitrogen fertilizer or too little phosphorus and potassium fertilizer, sweet peppers will drop flowers and fruits due to nutritional imbalance. Especially during the fruiting period, be sure to pay attention to the application of potassium fertilizer.

3. Other causes

In addition to temperature and nutritional causes, diseases and pesticide damage are also main causes of flower and fruit drop in sweet peppers. This is especially true of viral disease. After sweet peppers are infected with viral disease, the main symptom is plant stunting and dead growing tips, which causes flower and fruit drop. So if you want to prevent and control this disease, you must first eliminate aphids, because aphids are the main pests that carry the virus of viral disease. Then in summer, because the temperature is very high, when using pesticides, be careful to control the concentration of the pesticide. It must not be too high, otherwise it is easy to cause pesticide damage, which will also lead to flower and fruit drop in sweet peppers.

The above is a brief introduction to the causes of flower and fruit drop in sweet peppers. There are many causes of flower and fruit drop in sweet peppers. When this phenomenon occurs, we should first identify the cause of the flower and fruit drop, and then carry out targeted prevention for it to reduce the phenomenon of flower and fruit drop. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!