Hi, how do I kill tree roots that are growing underneath my driveway?

Handy Granny
by Handy Granny
  6 answers
  • Linda Sikut Linda Sikut on Dec 26, 2017

    Hi Lucinda, it looks like there is not a simple answer. I read two articles and am passing them both on to you. Wishing you the best & Happy New Year!



  • M. M.. M. M.. on Dec 26, 2017

    If the driveway is damaged, then that will have to be repaired after getting to roots. If you know which tree they are coming from, trace the root's path to the edge of the driveway, dig there and cut the root. They're really tough, you might need a small hand saw.

  • Geo22154074 Geo22154074 on Dec 26, 2017

    SALT - will kill that root - first drill some holes and then pour salt into the holes - best to use wood boring drill bit. You can also use a HIGH Nitrogen fertilizer in the holes. Start with a narrow drill bit - then use a wider one until you are using the widest bit you have. OTHERWISE - you will have to dig next to the driveway on the side of the tree and when you find the roots - you cut through them.

  • Jewellmartin Jewellmartin on Dec 26, 2017

    If the driveway already has cracks from the roots, you might want to dig up the cracked driveway and cut up the roots and remove. Replace the bulk of the roots with a culvert, and fill in on top and around it with rocks and instant cement. Overfill the concrete at the top and smooth it with a board. Give it a day to dry before you drive over it. You can also place odd thick floor tiles or boards into the concrete before it dries. When you decide to redo the whole driveway, have the roots all along the way removed before paving. Only costs half as much as the whole house! ☺️

    • Handy Granny Handy Granny on Dec 26, 2017

      Thank you for your great advice and great ideas πŸ˜ƒ. I think I will try adding the tiles. Thanks again.

  • Lorraine Lorraine on Dec 26, 2017

    Salt will also kill tree

  • Handy Granny Handy Granny on Dec 26, 2017

    Thank you all so much for your helpful replies!πŸ˜‰ I appreciate you!