Sulphate of Iron

Brian Rafferty asked 12 years ago

I’m just wondering if it’s possible to make a solution and apply Sulphate of Iron as a moss control to a lawn with a knapsack sprayer? i.e. Will it work the same as applying the dry granuals?The directions say to apply with a spreader at a 30g/Sq metre ratio so just wondering if i can dilute with water instead.

1 Answers

Gerry Daly Staff answered 4 years ago
Sulphate of iron can be applied in dilute form. But only the pure form of sulphate of iron. Often it is mixed with sand for distribution.

30 g per square metre is a high rate and as little as one-third or even one-quarter of this is the normal rate. On the other hand, this might be already mixed with a carrier. The pure salt is pale green.