MySheen

Why do cherry blossoms fall early?

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Cherry blossoms, which should have fallen in mid-September, have fallen in mid-August for four or five consecutive years. No pests and obvious diseases have been found, and there is no such phenomenon in the surrounding nurseries. What is the reason? Xu Shaoyuan, technical director of Zhejiang Senhe Seed Company, answers: Cherry blossoms fall early, there may be three reasons. The first is pests, longicorn larvae under the bark at the base of the trunk can cause early defoliation of the whole branch, if the larvae in the main root will cause early defoliation of the whole tree, so it is very important to check whether there are pests. Generally speaking, nitrogen content of 3‰ is relatively high.

Cherry blossoms, which are supposed to have fallen leaves in mid-September, have fallen leaves in mid-August for four or five years in a row, and no insect pests and obvious diseases have been found, while there is no such phenomenon in the surrounding nursery. What is the reason?

Xu Shaoyuan, technical director of Zhejiang Senhe seed Company, replied: there may be three reasons for the early defoliation of cherry blossoms. First of all, there are insect pests. Longicorn beetle larvae under the bark at the base of the trunk can cause the whole branch to fall leaves ahead of time, and if the larvae are in the main root, it will cause the whole tree to fall leaves ahead of time, so it is very important to check whether there are any insect pests. Generally speaking, the nitrogen fertilizer content of 3 ‰ is more appropriate, the stirring is uneven, and the concentration at the bottom becomes larger, which leads to the early defoliation of trees. In addition, the dry climate, uneven water supply, lack of water in the nursery or too much water in Rain Water will result in poor tree growth, hindered nutrient transport, and early defoliation. It is worth mentioning that the flooding of Rain Water in the south this summer can easily cause soil consolidation, hinder the exchange of soil gases and air, and strengthen the management of fertilizer and water, so as to enhance the resistance of trees and shed leaves normally.

 
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