Dates have rich nutritional value and are a good tonic in our lives. They have the effect of nourishing blood and nourishing the skin. Jujube planting also has relatively mature technology in China, but if the planting of jujube trees is improperly managed, it will suffer from many diseases. The dry rot that Xiaobian is going to talk about today is one. Dry rot can seriously damage the growth of fruit trees and cause a large drop in yield. Xiaobian today brought the symptoms and prevention methods of jujube trunk rot, let's take a look!
1, the symptoms of the disease
The dry rot is mainly caused by the branches of the fruit tree. On the main branch of the adult tree, there will be rounded dark spots, and the edge of the lesion is dark. The diseased part is convex, can be easily torn off by hand, and is relatively moist, and will gradually dry out in the later stage, and the diseased part is sunken. This is only a symptom. There is also a sapling and an adult tree. The diseased tree is usually after freezing. Purple spots appear on the branches, and then begin to crack, water shortage symptoms, uneven surface, the lesions will gradually enlarge, and the young trees will die rapidly.
2, prevention and treatment methods
Strengthen management: Strengthening the management of orchard is the most important. After harvesting, the base fertilizer of the orchard should be applied. The base fertilizer should reduce the proportion of fertilizer and enhance the content of farmyard manure. In particular, it is necessary to control the amount of nitrogen fertilizer to prevent excessive nitrogen fertilizer, which leads to the appearance of jujube trees, which is not conducive to the return of nutrients in the tree body. Improve the resistance of the tree, strengthen the disease resistance, timely clean up the fallen leaves and diseased bodies in the orchard, prevent the growth of pathogens and reduce the incidence rate.
Reduce pathogens
In the winter, it is necessary to do a good job in clearing the garden in time, and clear all the deciduous diseases out of the orchard for treatment. Many friends will turn all the fallen leaves into the soil as fertilizer. Although it increases the organic matter in the soil, it also provides conditions for the breeding of bacteria, so we still have to clear it out of the orchard. In the autumn and winter, the plant is sprayed with a stone sulphur mixture to improve the low temperature adaptability of the jujube tree. Prevents freezing damage during wintering, indirectly causes dry rot, and can effectively kill pest eggs.
Plastic trim
Jujube is a large tree-shaped fruit tree, so it is very important for us to make plastic trimming during the planting process. Reasonable pruning can not only enhance the growth of the tree, but also improve the permeability of the orchard and enhance the utilization of light. Because the growth of the tree is too weak, it will make the invasion of the bacteria organic. Conducive to the flower bud differentiation of fruit trees, reducing the incidence. Proper flower thinning and thinning can effectively increase production and ensure quality.
The above is a brief introduction to the symptoms of dry rot and the prevention and treatment methods. The dry rot is very harmful to the tree, and even the top ones can be ranked in the pests and diseases. We must pay attention to it during the planting process. Everyone planting jujube trees will definitely hope to be able to produce high quality and high quality, so as to maximize their economic interests. Therefore, I hope that everyone can manage the orchard, not only dry rot, but also reduce various kinds of The incidence of pests and diseases. (黔农网)
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