Answer: I'm afraid it's the nature of elms to produce suckers. In their natural environment they tend to colonize, spreading by suckers. In a landscape situation, suckers growing from the base of a tree can be very annoying. One way to get the upper hand is to yank the suckers off rather than cutting them off. By pulling the suckers off you'll be removing the cells and tissues that encourage regrowth. Cutting the suckers to ground level has the opposite effect and will encourage further production. Remove the suckers while they're still small and easier to yank out. I've successfully used pliers to rip the suckers out. Best wishes with your camperdown elm!
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