Bradford pear roots store substantial energy and produce sprouts from dormant buds along their length. After tree removal and stump grinding, these sprouts will continue emerging until the root system exhausts its reserves.
The solution is persistence: consistently remove sprouts by mowing, digging, or spot-treating with herbicide. Each removal forces the roots to expend more energy without replenishment through photosynthesis. Eventually—typically within a year or two—the roots deplete and sprouting ceases.
Don't be discouraged by the initial flush of regrowth; it's a sign the roots are still alive but weakening with each removal cycle.
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