Most lawn diseases are cured by adjusting cultural practices, such as watering or fertilizing less, or at different times; aerating also helps. Get help identifying the disease from a local nurseryman or cooperative extension service before using fungicide.
use Epsom salts as a lawn fertilizer, they can be applied using a spreader, which ensures even distribution, or diluted in water and sprayed on grass. For every 100 square feet of lawn, the Dirty Doctor recommends applying half a pound of Epsom salts over the lawn using the spreader. Alternately, combine 1 ounce of Epsom salts with a gallon of water, blend thoroughly, and use a mister to treat the lawn with the mixture.
Rather than collect newly shorn grass, use a self-mulching mower to leave shredded cuttings behind. Think of it as free fertilizer. Anecdotal evidence suggests that returning clippings to your lawn may contribute as much as 2 pounds of nitrogen per 1,000 square feet.