Turf grass soils vary considerably in physical and chemical composition. Regardless of their properties, most contain a vast array of living organisms, and all of these organisms affect turf grass health in important ways. However, the least understood are usually the bacteria, fungi and actinomycetes. Factors such as soil pH, fertility, organic matter, moisture, temperature, soil porosity, and turf grass species are all important. As a result, anything that alters these factors also affects microbial activities. When microbial populations are imbalanced the effects are reduced plant health and vigor. PureAg products insure microbial populations are balanced. When you re-establish healthy micro-organisms in the soil, turf health improves, plant stress is reduced and pest tolerance increases.