What kind of tree is a tree with tumor shells on its branches?

There are many other trees, such as Broussonetia papyrifera, Platanus acerifolia, Lagerstroemia indica and Alnus cremastogyne.

Tree tumor is a kind of self-protection formed by asexual reproduction of cells after trees are injured. There are many causes of tree tumor, which are mainly divided into traumatic type and bacterial infection type. External force injury type: after trees are physically injured, the sieve tube breaks, resulting in local overnutrition, which leads to disorderly cell division and tumor-like tissue. External damage includes not only the damage caused by humans or animals to trees, but also the damage caused by pests and diseases, such as the eating of longicorn beetles. Bacterial infection type: due to the diversity of bacterial species, it is generally called tumor bacterial infection.

To prevent the formation of tree tumors, the main thing is not to destroy the bark easily, and at the same time, we should pay attention to the prevention and control of pests, so as not to let the trees suffer trauma.