Canada Thistle invasion


Old 07-08-17, 11:25 PM
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Canada Thistle invasion

I live in Colorado, and have an invasion of Canada Thistle in my lawn. I tried Ortho Weed B Gone but it didn't make a dent. Too many to pull by hand, what else can I do without killing my grass?
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Old 07-09-17, 06:39 AM
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I would check the concentration you are applying. The 2,4-D in Weed B Gone should work on Canada Thistle if applied at the proper rate. With difficult weeds like that I spot spray them instead of hosing the entire lawn.
Old 07-09-17, 07:02 AM
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Do you own a garden hoe? I can't imagine that would take any longer than spot spraying them...
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