These "trees" are taking over my yard! Any idea what they are?

They were on the side of the shed when we bought the property (1st pic), but now they have spread under the carport cover on the other side of the shed (2nd pic).
q these trees are taking over my yard any idea what they are
Now about 3 times the size they were in the fall of 2012 when we bought the property.

q these trees are taking over my yard any idea what they are
Under the carport after cutting them back several times. We were unable to pull them up.
  7 answers
  • The name escapes me at the moment, but they are widely considered weeds, and can be cut down to the ground and dug up, especially where they are growing too near the foundation. They will continue to produce new shoots which can be mowed or weed whacked, but try to find something called stump killer, or use Round Up to try to kill the plant and roots.

  • Call a professional tree specialist to remove for you and have the stump ground out so they are less likely to reappear.

    • See 2 previous
    • Julie Julie on Jul 11, 2017
      That I will most likely try. Thanks!

  • Cbc15134818 Cbc15134818 on Jul 06, 2017
    Looks to me like locust trees. Even if the locust trees are cut down the existing root systems are long and strong and will send out shoots that will become new trees. They are often called volunteer trees they just pop up throughout your yard

    • Julie Julie on Jul 06, 2017
      Yep, that is what it is doing. If I was doing reforestation work, it would be good.

  • Corrine Foley Corrine Foley on Jul 06, 2017
    They are called tree of heaven and hard to get rid of them. Call an expert who will help you

  • Julie Julie on Jul 06, 2017
    Thanks for the advice. Maybe my garden center pros will know.

  • Bre9097926 Bre9097926 on Jul 06, 2017
    Thay are one of them trees that i use to have to stay ontop of were i use to live...i was the same way asking myself what to do but as soon as i seen one i would pull it up....couse once there at a lg size there stinkers to pull up...

  • Allison Allison on Jul 11, 2017
    Hackberry trees behave the same way. I found that cutting the trees down and applying rock salt to the stump will kill them and any 'babies' they are considering. I go a step further and cover the it with plastic and tie it around the stump, burn and suffocate. (indeed it is a cruel world;) For the larger stumps, use a paddle bit to drill a few holes and fill with the salt. If you don't take down the mother, they will keep popping up.

    • Julie Julie on Jul 13, 2017
      My brother-in-law also suggested rock salt. Haven't tried it yet, but I have a box around here somewhere. May try the vinegar and rock salt together if one or the other doesn't work by itself.