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I would like to put a barrier inbetween my lawn and my side yard where we have quakies to keep the suckers from coming up. What can I use and how deep do I put it into the ground? Also, they are next to my neighbors driveway, how far do the roots travel and should I barrier that side as well?
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Installing barriers to try to stop Aspens from spreading is usually very impractical and does not produce a lot of control. The barrier may confine the root system but the roots may just grown down and around and up the other side. Aspen trees tend to produce the most suckers when they are stressed. To help reduce the amount of suckers they are producing focus on maintaining the health and vigor of the tree by watering deeply but infrequently, fertilizing when needed and disturbing the root system as little as possible. In addition, avoid pruning the trees as this will also increase the amount of suckers they produce. I have included a link to a document that has some information on deep watering trees.
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