Managing a willow tree on lakeshore. - Ask Extension
I have a big, beautiful willow on my lakeshore. In the last three years, though, the roots have grown 50’ in either direction and are above ground a...
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Managing a willow tree on lakeshore. #877650
Asked July 17, 2024, 2:40 PM EDT
I have a big, beautiful willow on my lakeshore. In the last three years, though, the roots have grown 50’ in either direction and are above ground and under water. They are taking over the beautiful, sandy beach, making it weedy and slippery. How can we return the growth to balance (less negative impact)? If the tree is removed will be there 100 new ones to replace it? Thank-you.
Douglas County Minnesota
Expert Response
Willows are native to Minnesota and grow naturally along rivers and lakeshores. I am hesitant to provide you with information about removing such a tree merely because its roots are troublesome. However, I understand your desire to maintain your beach.
Willows will sucker from the existing root system when removed. You will have to use an herbicide on the suckers to make sure it is gone. Unfortunately, since this willow is near a lakeshore, your choice of herbicides is exceedingly limited. A formulation of glyphosate (the ingredient in Roundup) for aquatic use, called Rodeo, is available, but be aware that the use of any herbicide in or near water requires a DNR permit:
https://www.dnr.state.mn.us/shorelandmgmt/apg/problemplants.html
Also, read this similar question and answer:
https://ask2.extension.org/kb/faq.php?id=765238
Willows will sucker from the existing root system when removed. You will have to use an herbicide on the suckers to make sure it is gone. Unfortunately, since this willow is near a lakeshore, your choice of herbicides is exceedingly limited. A formulation of glyphosate (the ingredient in Roundup) for aquatic use, called Rodeo, is available, but be aware that the use of any herbicide in or near water requires a DNR permit:
https://www.dnr.state.mn.us/shorelandmgmt/apg/problemplants.html
Also, read this similar question and answer:
https://ask2.extension.org/kb/faq.php?id=765238
