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Lynda from Westminster, Co writes,

What is the best product(s) recommendations to completely eliminate thistle?

I am battling an invasion of thistle trying to take over the entire yard. I believe it is too late this year in Colorado for pre emergents as I see small thistle plants actively sprouting throughout the grass and rockbeds. The product needs to be safe for children and pets within a few hours after application.


You can use Lontrel to treat grassy weeds like Thistle. Lontrel is a pre-emergent that works great in treating thistle. Please read the product label to make sure you can apply this product your lawn.

Answer last updated on: 04/29/2013

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