Is your lawn being choked by a thick layer of thatch? Thatch Relief liquid can convert this "spongy" build-up into rich humus that absorbs nutrients more easily. Spray in spring and fall and watch your lawn perk-up! One quart treats 10,000 sq.ft. Thatch Relief-Quart Bottle Regular price: $16.95 Sale price: Thatch Relief - One Gallon Regular price: $59.95 Sale price: