Aerification, or core cultivation is a service which pulls cores of soil up from an established turf area with minimal disturbance to the turf. The goal of this is to increase the soil's aeration, which is the amount of available oxygen in the soil.
Core cultivation is often used in conjunction with other services, such as seeding and top dressing and even certain corrective disease control treatments. Coring depth and cores per square foot are the two immediate measures of a good core aerification
Timing: For warm season turf, an aerification service should be performed during periods of peak growth, such as late April through June. Late summer aerifications are sometimes necessary if foot traffic or stress create the need. Additionally, the images below show an early Fall timing, which is used only when a Perennial Rye seeding is scheduled.