Scientific prevention of cherry tree gum disease

Cherry tree gum disease generally increases from March to April. One of the causes is the branch diseases (rot, dry rot, perforation, etc.), insect pests (Cinnamon, Giardinus, etc.) and mechanical damage. Excessive pruning causes wounds to flow; second is due to freezing injury or sunburn. The death of some bark caused fluidity; the third was due to soil viscosity, too much water, poor drainage or improper fertilization induced gummy disease.

First, last year, the amount of results was modest. From September to October, cherry trees with sufficient amounts of organic fertilizer and sufficient water were poured. In the middle and late March, all trees sprayed 1 time with 10% of the world's high water dispersible granules 1000 times or sprayed with 50. % Carbendazim WP 100 times or 5% bacteriostatic water solution 100 times, eradicate the potential bacteria in the branches. The amount of spray was wet with branches and dripping water. Formaldehyde is more polluting to the environment and should be eliminated.

Second, last year's results were many, and in the fall, no organic fertilizer or insufficient fertilizer was applied, and cherry trees with insufficient water for winter were likely to cause severe branch diseases. For such trees, timely watering in the early spring, supplementing with available nitrogen fertilizers, and appropriate amounts of phosphorus and potassium fertilizers, it is best to supplement organic fertilizers and promote tree vigor recovery. In mid-March, the whole tree was sprayed with an eradicating agent to remove the spores, and 100% of Segosol was used as a 100-fold solution of carbendazim or 100-fold solution of bacteriocin. The tree body has ulcerous lesions that must be promptly scraped to prevent enlargement. After curettage, the lesions will be coated with rot or coated with 843 rehabilitative agent, and can also be painted 500-1000 times more fluid or carbendazim 50-100 times or bacteria poison clear 50 times. The dead branches should be cut off as soon as possible. Because of the large loss of tree nutrients, such trees must strictly control the amount of results and prevent the condition from further aggravating.

In addition, we must also pay attention to avoid constructing gardens in sticky soils; pay attention to rowing, heavy rain and irrigation, and timely cultivating and loosening the soil to improve the ventilation of the soil; minimize wounds, and do not cut large cuts and prunes to avoid cracks. Do not plant branches; do a good job of pest control, reduce insect damage; winter and spring painted white sticks to prevent frostbite and sunburn. For trees that have already flowed, they cannot be scraped with a knife to prevent them from causing more wounds and make the glue worse.

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