Compacted soils will prevent proper drainage resulting in areas that remain excessively wet. Once they dry out completely, they are often difficult to rewet.

Turfgrass in these areas may have root systems that are deprived of oxygen resulting in a weak plant. This is also an ideal situation for root rots to develop. High soil pH may affect nutrient uptake and weaken the plant. High salt concentrations will impact turfgrass health resulting in a plant more susceptible to diseases.

If you have areas in the lawn or landscape that appear to dry out first or are the first to appear sick, use a metal rod to be sure that there is nothing buried at that location. It is not uncommon to find building materials buried in the landscape. If you have an area that is water logged for long periods, build that area up and make it level with the rest of the lawn.

For more information go to:
Turfgrass Disease Management, M. L. Elliott and G. W. Simone. Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.. First published: July 1991. Revised: April 2001.