I have a patch of my garden with some rain trees interspersed with grass (I think its st Augustine) enter image description here

my question is: which chemical can I use to kill off the grass but leave the trees intact?

location is Orlando, Florida

  • Not St. Augustine, it grows with runners/rhizomes. Apr 15, 2021 at 14:47
  • @blacksmith37, could be. how do I get rid of them? I usually cut them with a bread knife, careful not to hit the trees. but that is very labor intensive
    – yigal
    Apr 16, 2021 at 14:28
  • You should pull them to get the roots . Cutting will have little affect . Apr 16, 2021 at 23:33
  • @blacksmith37 that is exactly what I am trying to avoid. this is a small patch of the garden and pulling them all out is a lot of work
    – yigal
    Apr 17, 2021 at 0:11


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