Control of fruit tree flow

Most fruit trees are prone to flow, especially peach. The cause of the flow of fruit trees is very complicated. The tree flow occurs mainly on weak, tree-old fruit trees. It is generally believed that all kinds of factors that affect the normal growth and development of fruit trees will cause the occurrence of plastic flow. Mainly caused by frost damage, frost damage, in addition to diseases and insect pests, too much or too little water, improper fertilization, excessive results, excessive pruning, excessive planting, and soil acidity or soil texture and other factors, can cause fruit trees flow. Swelling at the site of the disease, after the brown part of the wood becomes brown, a clear gel is secreted from the lenticels or the wound. It gradually turns yellow-brown to brown in contact with the air. It becomes a black lump over time and the bark at the site of the disease is rough and turtles. Cracked, difficult to heal, when the disease is severe, the tree vigor is weakened, and even the whole plant dies.

The prevention measures are as follows:

1, increase the maturity of organic fertilizer, the rational application of nitrogen, phosphorus, potassium and trace elements, enhance tree vigor, improve resistance to disease.

2. Minimize wounds when pruning, and apply a 5 Baume degree lime sulfur compound to large wounds.

3, orchards to strengthen the prevention and control of pests and diseases, in particular pests and stem pests, to prevent insect damage and reduce the possibility of flow plastic.

4. Collect the dead branches and burn them, prevent and kill the pests, and reduce the sources and wounds.

5. For lesions confined to the surface only, it should be promptly scraped after the spring, and at the same time apply 402 anti-disease 50 times liquid at the wound, and then be coated with Bordeaux multi-fluid protection, or directly apply 5 Baume degree of lime sulfur agent for prevention and treatment.

6. Spray 402 anti-disease agent 300 times before serious fruit trees sprout.

7, in the growth period combined with other diseases prevention spraying on the branches of protection.

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