Bonsai Ficus Losing Leaves

This issue is caused by improper tree care.
Bonsai ficus losing leaves. I have ficus bonsai containerized larger trees and landscape trees here in socal and they can take temps in the 30 s without problem. Most indoor bonsai species ficus carmona etc do not drop their leaves unless there is a problem. Inspect the leaves the branches and the stem carefully for signs of tiny invaders. When they don t receive enough water when indoors they think a dry season is coming and drop leaves in response.
Lack of fertilizer is not its problem nor is temperature. Reasons for ficus tree dropping leaves. I m not talking about extended periods in the 30 s but 30 s as a low overnight with the daytime being in the 50 s. Ficus are a lot more cold hardy than people give them credit for being.
A few leaves dropping of a ficus tree will not hurt it and they will regrow but if your ficus is losing more than a few leaves the following reasons could be why. A few months of overwatering will lead to root rot only visible in the tree losing strength and dropping its leaves. 5 pests or disease last but not least pests or disease can make the leaves of your bonsai rapidly fall off. If your ficus starts dropping leaves for no apparent reason the most frequent cause is excessive wetness or dryness.
Overwatering is a common reason when the indoor bonsai is planted in poor soil that retains too much water. If the disease threat is high it will plague your bonsai and could the cause of your ficus bonsai losing its leaves. However a sudden draft of cold air or sudden exposure to bright sunlight may produce the same results. Check out the label of the fertilizer that you are using and do your research according to the type of bonsai tree you are growing.
The reason your ficus drops leaves when underwatered is related to its evolution. It will also need a thorough watering about once per week. Often you will see ficus leaves drop when the seasons change. In any of these cases wrong fertilization might be to blame for your bonsai losing leaves.
Although the ficus bonsai tree is fairly resistant to pests some bonsai varieties can be affected by various diseases. Change in environment the most common cause for dropping ficus leaves is that its environment has changed. Keep ficus warm and let the soil dry out before watering again and the plant will re leaf in 3 4 weeks time. But on the bright side as far as reviving a ficus bonsai losing leaves is concerned pests attacks are effortless to identify unlike issues related to watering fertilization or environmental changes.
All ficus species require lots of sunlight when kept indoors such as on a sunny windowsill. It drops leaves to prepare for the dry seasons that occur in its native habitat to reduce foliage that needs moisture to live.