Kumquat trees are common landscape plants because they are attractive and produce fruit. Home gardeners worry when their kumquat tree loses its leaves, which is often the result of natural shedding.
Kumquat trees naturally experience leaf shedding when the tree reaches 18 to 24 months of age, states the Alabama Cooperative Extension System website. Natural leaf shedding is most noticeable in the springtime when trees lose large amounts of leaves in a short period. Damage from cold weather is another common cause of leaf drop.
Insect infestation is a common cause of leaf drop in the kumquat tree. Mites; such as the citrus red mite, the six-spotted mite and the Texas citrus mite; are all common in citrus trees. Damage inflicted on infected trees includes premature leaf drop, which a result of heavy feeding by these insects. Root diseases also cause premature leaf loss. Overwatering and excessive soil moisture are two common causes of root rot in citrus trees.
Natural leaf drop is normal and cannot be prevented. Providing protection from cold weather and keeping watering to a normal level reduces the likelihood of leaf loss.
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