Bituminous coal disease on fruit trees, hindering plant photosynthesis, how can fruit farmers preven

Among the many fruit trees, fruit trees such as citrus are very susceptible to bituminous coal disease, and the leaves of fruit trees with bituminous coal disease are black, and these leaves have some black paint attached to them for a long time, which can be wiped off if you touch them with your hands, but after a while, there will still be on the leaves. If the planting area of fruit trees in the house is relatively large, this bituminous coal disease may spread relatively quickly, and this disease is very difficult. <>

Bituminous coal disease is very difficult on fruit trees, because these are caused by many kinds of fungi, generally on the leaves and tops of fruit trees and fruits, which will affect the photosynthesis of plants, and then the flowering of citrus trees is very small, and fruit setting is also difficult, and the quality of the fruits produced is not good. Generally, bituminous coal disease needs a suitable temperature when it occurs, normally it is between 18 and 23, and when the temperature is suitable, the pathogens will multiply in large quantities, especially in some old orchards, the ventilation is relatively poor, so the anti-virus ability of trees is relatively poor. <>

There are also some fruit farmers who plant trees, if they find that the fruit trees are diseased, they just go to eliminate these germs, but if they only kill the insects in the tree and do not remove the pests, the leaves are still prone to bituminous coal disease. The occurrence of tobacco mildew in fruit trees is caused by a variety of fungi, in which there is a special fungus called Xiaobi fungus, which will parasitize in the epidermis of fruit trees, and then many circular mold spots will be formed on the leaves and fruits. <>

When fruit farmers plant fruit trees, if they want to prevent and control them, they must strengthen the management of the orchard, carry out scientific pruning, and all fruit trees must ensure good ventilation and light transmission, and the humidity in the field should also be reduced. For those aphids and scale insects, it is necessary to strengthen management and control, solve problems from the root cause and reduce pests and diseases. And we should pay attention to prevention, usually use medicine scientifically, and carefully clean up the orchard in winter and spring.

After spraying the orchard, pay attention to the cleanliness of the leaves, if the water source near the orchard is sufficient, every other month, the sick trees should be rinsed with water to prevent bituminous coal disease**.

First of all, the diseased branches and leaves can be pruned, and then it is necessary to ensure sufficient light, appropriate watering, and regular insect repellent to ensure the air permeability of the soil.

Management in this area should be strengthened to avoid disease problems and to prevent and control them through regular watering and fertilization.

Orchard management should be carried out, and disease prevention should be carried out through watering and fertilization, and the needs and precautions for prevention and control should be understood.