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Hi all,
I own a building and have weeds of various sizes and types and looking for something that really kills them. I tried round up and to me it seems to laugh at it. some looking for recommendations that kills and prevents growth for a few months

thanks in advance

For long term use something like Spike...
Spike® 20P herbicide
Follow lable instructions... :smile:KennyV

Gly-4 is another good one.