Naturally occurring Iron (FeHEDTA) 5 in 1 Kills Broadleaf weeds, disease, moss algae, plus greens up lawns. Works fast (hours), in low temps, wit no unpleasant odor. Re-seed in only 1 day. and can apply to new grass after only 1 week! One product to conveniently spot treat multiple problems through the lawn. One pint makes over 3 gallons.