How to prevent apple trees from blooming in late autumn

In late autumn, the phenomenon of apple trees blooming is called secondary blooming. The main reason for the secondary flowering is the comprehensive effects of pests and environmental conditions, leading to early shedding of old leaves, reducing the content of ethephon, a substance that inhibits germination, and making hormones lose their relative balance. The flowers that bloom twice can't bear normal fruit, and also waste nutrients. In the lighter case, the tree will become weak, and the more severe case will cause the next year's production to be reduced or aborted.

One is to control red spiders and leaf miners. On the basis of strengthening prevention, there are 2 to 3 red spiders on each leaf, and 5 leaf miners damage spots on each louver should be sprayed.

The second is the prevention and control of spotted leaf disease, ring streak disease and brown spot. In the years with heavy rainfall, the disease is more severe, and pesticides should be sprayed in time when sporadic spots on the leaves are found.

Third, waterlogging, wet damage, and excessive drought can also cause early leaf fall. Management should ensure that waterlogging can drain, and drought can be irrigation, so that the maximum water holding capacity of the field is maintained at about 60%.

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