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Whether tree roots will continue to grow after a tree has been cut down depends on the species. Some tree roots will eventually die because they can no longer get nutrients through photosynthesis. However, other species that reproduce through root sprouts can continue to grow and produce new sprouts for seven years or more. For example, the roots of elms, ficus, and willows tend to regrow aggressively, while the roots of pines, oaks, and maples will typically die. To determine if a root system is still active, look for new sprouts on the old trunk, stump, or any exposed roots.

According to scientists at Penn State University, spotted lanternflies do not typically kill the trees and plants they feed on, but they can cause branches and segments to die off. However, they have been found to kill cultivated grapes, which can have devastating consequences for vineyard owners and regions that heavily rely on vineyards to create jobs and generate revenue. They have also killed the Ailanthu altissima, known as the tree of heaven, though this is classified as a noxious and invasive weed tree.

The fastest ways to remove a tree stump are by grinding it or burning it.

Stump grinding is often the quickest method, with professionals able to chip away a stump and its roots within a single session. You have the option to hire a professional stump removal service or rent a stump grinder to do it yourself. However, it's important to note that these machines can be large, difficult to transport, and dangerous to operate without prior experience. For safety reasons, hiring a local arborist or landscape specialist is often recommended.

Burning is another fast option. Before you begin, check your local burn laws. The process involves drilling holes into the stump, filling them with vegetable oil, and waiting 24 to 48 hours. Afterward, you can add charcoal bricks to the surface and light the fire, which must be attended at all times.

For a more affordable but much slower alternative, you can use potassium nitrate pellets to accelerate the natural decomposition process. This method typically takes four to six months.

While trees can grow in the curb strip between the sidewalk and the street, this placement often poses the problem of interfering with overhead power lines. It’s best to consult your local utility provider and tree planting service before transplanting a tree that might grow into power lines. Also, you should never work within 20 feet of a live power line to avoid the risk of electric shock. Tree branches should never touch nearby power lines, so it’s essential to ensure your tree isn’t in danger of growing too close to them.