Ferrous Sulfate Heptahydrate 20% Iron (Fe) 12%
2021-5-17 · Spray the solution you made on your entire lawn and concentrate on area with existing moss. (Note: you need to spray your entire lawn even the areas without moss to prevent future growth).3. Do NOT water the lawn after apply the Ferrous Sulfate treatment and allow several days to kill the moss.4. Get rid of the dead moss patches on your lawn.
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