1、 Natural metabolism
Reason: the yellow leaves of Myrica rubra tree fall off, which may be due to normal metabolism. The leaves under it naturally turn yellow and fall off p>
Solution: if you just drop the leaves slightly, you don't need to worry in this case. Just wait for the yellow and old leaves to fall naturally p>
2、 Improper fertilization
Reason: Myrica rubra needs reasonable fertilization to maintain its growth. If it is not fertilized for a long time and lacks nutrients, it will lead to weak growth and gradual falling of leaves. If fertilization is excessive, it will also lead to problems in growth, but inhibit growth and cause problems such as falling leaves and rotten roots p>
Solution: in the stage of growth management, it is necessary to apply fertilizer reasonably and appropriately to provide sufficient nutrition for growth. Pay attention to the dosage, not too much p>
3、 Infectious disease
Reason: the leaf loss of Myrica rubra may be caused by Fusarium wilt. There are many reasons for this disease. Trees with weak growth are more likely to get the disease p>
Solution: the main way to deal with this situation is to prevent it, remove the dead branches and leaves in time, and trim the withered branches and leaves. The trimmed wounds cannot be exposed to the outside, and irrigate the roots with 40% carbendazim 50 times solution p>