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Lesser celandine tubers #877773

Asked July 18, 2024, 11:46 AM EDT

Hello, I have been fighting lesser celandine for a while. I paid our local county conservation district to come out and spray, and they did, but, more interested at that moment in garlic mustard, they dawdled until the celandine was disappearing back into the ground. Now the tubers are coming out and if they get into my creek, which they are on the banks of, all that celandine will migrate down to the wetlands a mile away and then into the deltas. The county isn't much help, nor is the state . I can find little in the way of how to fight the tuber stage of celandine. What can you do to help me, when local governments don't and won't? I can't pay any more, and this is not my problem alone. I would appreciate any advice you can give me. Barbara Law<personal data hidden> <personal data hidden>

Kent County Michigan

Expert Response

Barbara - I'm sorry to hear about your challenges with lesser celadine.  From what I have found with .edu research it appears that the most effective method of eradiation is repeated chemical applications.  It appears that you could use a non-selective herbicide containing glyphosate that are formulated for areas around wetlands.  I am including links below to articles with more details about growth habits and effective management.  Note that with a plant that is this aggressive, you will most likely need to be consistent with applications over multiple years.  The Maryland article provides specific brand names of aquatic glyphosate products which i found available to purchase on the internet (so you do not need a pesticide applicator's license to purchase or use).  Hope that helps!

https://extension.umd.edu/resource/lesser-celandine/

https://bygl.osu.edu/node/2110

Diane - MSU Advanced Extension Master Gardener Replied July 22, 2024, 1:59 PM EDT
Thank you so much.

BGL

On Mon, Jul 22, 2024 at 1:59 PM Ask Extension <<personal data hidden>> wrote:
The Question Asker Replied July 22, 2024, 9:58 PM EDT

Good luck and be patient.  You can eradicate it with persistence and time.  

Diane - MSU Advanced Extension Master Gardener Replied July 23, 2024, 4:37 PM EDT

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