Thatch is a layer of living and dead organic matter that occurs between the green matter and the soil surface. If you have a thatch build up of over 1/2 inch thick it will create a favorable environment for diseases and pests. Thatch can also inhibit your grass roots and cause unhealthy grass. If you have a layer of thatch over 1/2 inch it is time to de-thatch your lawn. Need help with de-thatching? give us a call.