The answer to 'tree removal has weeds' is that it is a common problem that can occur after a tree is removed. When a tree is cut down, the roots and stumps left behind can continue to release nutrients into the soil, which can encourage the growth of weeds. Additionally, the disturbance to the soil during the tree removal process can also create an ideal environment for weeds to take hold.
To address this issue, it's important to thoroughly remove the tree stump and roots, and then properly prepare the soil before replanting or seeding the area. This may involve rototilling the soil, adding organic matter, and applying a pre-emergent herbicide to prevent weed seeds from germinating.