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Old 03-21-2012, 09:04 PM
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RigglePLC RigglePLC is offline
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Join Date: Jul 2006
Location: Grand Rapids MI
Posts: 10,744
Ferrous sulfate and other varied forms of iron do kill some moss. I used ferrous sulfate yesterday on my shady back yard. I used Bonide 15 percent ferrous sulfate. Added to 2 gals water in a hand sprayer--applied to about 1000 sqft. Most of the moss turned dark brown. Not sure if its dead--but looks like it is dead. However--if last year is any indication--the moss comes back in a few months.
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