I know that the Japanese Cherry 'Kwanzan' is susceptible to pests and diseases, making the life span only 15-25 years, but I have had this tree since 2009 and absolutely love it. So far (knock on wood), the Japanese beetles in July-August have been the only problem. I'm afraid once the tree gets larger, I won't be able to control them anymore.

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Although I fight the Japanese beetles off this tree from the end of May until about the end of July, it is well worth the fight! The early spring blooms are beautiful.

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I have a glorious Kansan cherry about 14 years old. There is a 4 foot sapling growing up from a large root.
The tree is currently on bloom in Zone 7
Should I cut out the sapling and treat the wound with something?
Help

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This wide-spreading, double flowered Japanese cultivar is commonly planted in the Mid-Atlantic of the US, also common from Atlanta, Georgia to Boston, Massachusetts. (The other two common cultivars of Oriental Flowering Cherries in the region are the Yoshino and the Okame.) Having double mutated flowers, it does not bear any fruit that I have seen. It produces the flowers heavily, and after falling, they can make quite a mess on a driveway or some pavement when it rains, with many brown old blossoms caked upon the surface. The mother species is native to Japan, Korea, and China.

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