Jim from Carver, Ma writes
You normally apply a fungicide like Headway before signs of the disease common to occur in your lawns starts to be present as long as the ground is not frozen. If you typically get a disease in the lawn every may, for example, then you would want to put down the headway a few weeks before the time it normally presents itself in your lawn, and continue reapplying at the appropriate intervals per the product label for that disease to keep it at bay. You may also want to consult your Master Gardener for the appropriate application time in your area.
Answer last updated on: 01/31/2024
