What about tomato curls?

Tomato, also known as tomato, is a very popular fruit, which has a large planting area in various parts of our country. However, growing tomatoes is not as simple as expected. There are often a lot of problems when growing tomatoes, among which curly leaves are one of them. Tomato leaf curling will affect fruit setting and fruit quality. So what is the cause of tomato curling? What are we going to do? Let's take a look at it with the editor.

1. The reason for rolling leaves

Water deficiency

Tomatoes have a greater demand for water during their growth, especially during the fruiting period. If the temperature is too high, drought and lack of water, the leaf area is relatively large at this time. The leaf curling phenomenon is easy to occur when the high temperature environment leads to more water evaporation, especially the leaf curling phenomenon at the vent is serious.

Improper use of fertilizers and pesticides

In the high temperature environment in summer, farmers do not pay attention to the desired concentration when using drugs, which leads to excessive concentration, which leads to drug damage in tomato leaves. The leaves are spotted and curled upward. And in fertilization, if too much nitrogen fertilizer is used, it will lead to an increase in soil concentration, causing tomato leaflets to flip and roll up. The phenomenon of high solution concentration is also easy to occur in saline-alkali areas, so it is also easy to cause leaf curling.

Other reasons

Tomatoes in the planting process need to do a good job of heart-picking and other work, but should pay attention to the heart-picking time. If the heart is picked too early, it will easily lead to the growth of axillary buds, lead to excessive phosphoric acid in leaves, and the phenomenon of aging leaf curling occurs. Then there are diseases and insect pests and other causes, especially viral diseases, the main symptoms of viral diseases are chlorosis, curling and so on, especially in the environment of high temperature, high humidity and strong light.

2. Prevention and control methods

Plant management

Before planting, we should apply sufficient base fertilizer to ensure the overall balance of nutrition, do a good job in ploughing and weeding, and improve the quality of the soil. Create a good environment for tomato growth and improve the root growth ability. Then, after planting, we should pay attention to apply enough planting water, control the amount of watering before flowering, prevent overwatering leading to plant overgrowth, and irrigate a small amount in the middle and later stage, and the soil can be dry and wet. Finally, it is necessary to do a good job of flower and fruit thinning to avoid exceeding the bearing range of the plant and ensure the balance of plant growth.

Daily management

The temperature requirement for tomato growth is relatively high. When planting in winter, the temperature should be controlled at about 26-27 degrees during the day and at least 12 degrees at night. The summer temperature should be appropriately increased by 1-2 degrees to prevent the summer temperature from being too high, so it is necessary to do a good job of shading and cooling. Then appropriate application of microbial fertilizer and other fertilizers to ensure nutritional balance. Control the concentration of the drug, avoid drug damage, do not spray during the period of high temperature. Finally, attention should be paid to the prevention and control of diseases and insect pests to reduce the incidence.

The above is a brief introduction to the causes and control methods of tomato leaf curling. Tomato curling leaves will seriously affect the photosynthesis of leaves, resulting in a decline in flowering and fruit setting rate, so we must pay more attention. That's all for today's introduction. This article is for reference only. I hope it can help you all.