In the production of fruit trees, the control of root disease in fruit trees is often ignored. After the onset of the roots of the fruit trees, the leaves of the plants were deciduous, fruit-dropped, and poorly grown; the whole plant died and the losses were heavy.
The main factors causing disease in the roots of fruit trees are: poor soil environment, such as water in the soil and high groundwater level. Roots are infested by pests such as certain pathogenic fungi and bacteria. Among the two reasons, mites are the main cause of root disease. The root disease should be based on prevention and prevention. In order to avoid and reduce the root disease of fruit trees, the following control measures should be taken:
First, do a good job in irrigation and drainage facilities. Early repair of irrigation and drainage ditch, timely elimination of water in the orchard after the rainy block, improve drainage facilities, and not allow water to accumulate in the orchard, is a fundamental measure to prevent disease and damage of the roots of fruit trees.
Second, strengthen cultivation management. The orchard uses organic fertilizer to improve the soil structure. Foliar spray fertilizer, enhance the tree potential, improve the tree's ability to resist mites and disease resistance.
Third, pay attention to the treatment of sick trees. When the leaves on the tree are dry and dry, the edge of the leaf tip is dry and the leaves turn yellow, the following work should be done:
1. Find the root of the disease. First open the rhizosphere soil layer, dig it to the base of the root, check the root neck, and find the spot of the main root, lateral root and fibrous root along the lesion after the lesion is found.
2. Remove the root of the disease. For the entire rotten root, it must be sawed or cut off from the base. The removed roots should be taken out of the garden or buried.
3. The medicine is rooted. In order to prevent the diseased plants from infecting the rest of the roots, the roots should be used to dig 4-6 deep 60 cm, 30-40 cm wide, radial gullies that grow to the periphery of the canopy, and 50% of the 50% sterilized WP. Liquid, or use 70% methyl thiophanate WP 800 times solution, or 200 times copper sulphate solution, the amount of application per plant depends on the size of the tree.
The main factors causing disease in the roots of fruit trees are: poor soil environment, such as water in the soil and high groundwater level. Roots are infested by pests such as certain pathogenic fungi and bacteria. Among the two reasons, mites are the main cause of root disease. The root disease should be based on prevention and prevention. In order to avoid and reduce the root disease of fruit trees, the following control measures should be taken:
First, do a good job in irrigation and drainage facilities. Early repair of irrigation and drainage ditch, timely elimination of water in the orchard after the rainy block, improve drainage facilities, and not allow water to accumulate in the orchard, is a fundamental measure to prevent disease and damage of the roots of fruit trees.
Second, strengthen cultivation management. The orchard uses organic fertilizer to improve the soil structure. Foliar spray fertilizer, enhance the tree potential, improve the tree's ability to resist mites and disease resistance.
Third, pay attention to the treatment of sick trees. When the leaves on the tree are dry and dry, the edge of the leaf tip is dry and the leaves turn yellow, the following work should be done:
1. Find the root of the disease. First open the rhizosphere soil layer, dig it to the base of the root, check the root neck, and find the spot of the main root, lateral root and fibrous root along the lesion after the lesion is found.
2. Remove the root of the disease. For the entire rotten root, it must be sawed or cut off from the base. The removed roots should be taken out of the garden or buried.
3. The medicine is rooted. In order to prevent the diseased plants from infecting the rest of the roots, the roots should be used to dig 4-6 deep 60 cm, 30-40 cm wide, radial gullies that grow to the periphery of the canopy, and 50% of the 50% sterilized WP. Liquid, or use 70% methyl thiophanate WP 800 times solution, or 200 times copper sulphate solution, the amount of application per plant depends on the size of the tree.
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