Acacia leaves in autumn. The density of its leaves is very large, so it is suitable for shade. It also has a very special place, that is, the leaves are open in the daytime, and will close at night. This phenomenon is called the "sleep" movement of plants, not only the joyous, but also other plants such as Mimosa, which will stretch out their branches and leaves towards the sun during the day and close them in pairs at night, because this can reduce the amount of heat and water to the minimum. Not only does the acacia tree close its leaves at night and enter this "sleep" state, but it will also close slowly once it encounters heavy wind and rainstorm to prevent the vulnerable parts of its leaves from being destroyed by the outside world. This adaptive response to the environment, like people, is a protective measure for the trees themselves.
Under normal circumstances, every October or so, the acacia tree will begin to shed leaves. The specific time should be based on the local temperature change, but on the whole, the leaves will fall every autumn.
The defoliation caused by this reason is a very normal phenomenon. It doesn't need to worry too much. Just do a good job of daily maintenance.
Improper watering is also one of the possibilities of causing the leaves of Acacia trees to fall. When the climate is too dry, it is easy for plants to lack of water, so the growth of Acacia trees is not good, the transport of nutrients is hindered, leading to the early start of falling leaves. On the other hand, if the watering is too frequent, the drainage of the planted land fails, resulting in a large amount of water at the root, which will also affect the normal growth of the acacia tree, leading to the early fall of leaves.
Once it is found that it is this factor that causes the fallen leaves, we must pay attention to the frequency of watering in time, give sufficient water when it is hot and dry, and stop watering in rainy weather.
This is also one of the more common causes of defoliation, once found, it is necessary to spray drugs, timely treatment.
