Kathleen fAHY asked 15 years ago
what is the dilution of sulphate of iron do I use to kill off mind your own business, I do not mind killing the grass in the patch.
1 Answers
Gerry Daly Staff answered 6 years ago
Used dry mixed with sand 1 part to 20 parts sand at 120gm per square metre of the mix. Used with water, enough to deliver between 5 and 10 grams per square metre. Test the sprayer/watering can to see how far a sprayer full goes … use water for the test on a drive way or road.
