Pull them up before they get bigger. They have tap roots to China and are hard to pull when they get taller. I have a problem with squirrels burying them in my flower beds.
You can use a weed killer if you like; mowing regularly also works
Walter, I knew you would have the answer.I wish I could mow my flower beds. Have to pull by hand.
thank goodness I have a kid that likes money, 25 bucks and no more acorns in the flower beds, now to get my hubby to cut grass more often so I won't cringe evertime I look out at the lawn and see those little monsters taunting me