Homeowners often overlook problems associated with soil compaction. Insects, diseases, improper watering and a lack of fertilizer are often blamed for a lawns decline when the real culprit is compaction. The problem starts when the top 4 inches of the soil become compressed, impeding the movement of air, water and nutrients to the grass roots. This stresses the grass plants, making them less able to compete with weeds and slow to recuperate from injury. In time a compacted lawn becomes worn, thin and just plain tired. The Solution: Core-Aeration!