Lagerstroemia indica bud head is black.

These are all normal. In winter, the temperature will be lower. In autumn, the bud's resistance is very low, so it can't survive the winter. They will die from the bud head and eventually die. Such branches can be subtracted from unnecessary and useless branches.

Hubei shepherd boy blueberry technology co., ltd. is training blueberry knowledge recently. After all, blueberry knowledge is not very extensive.