A manual aerator is fine for a smaller lawn ... "For warm-season grasses like Bermuda, Zoysia, and St. Augustine, core aerate ...
Solve The Problem of Lawn Soil Crusting: Manual lawn aerator tool can easily loosen the soil and solve the problem of soil crusting. Core aerator lawn tool facilitates the rapid penetration of ...
the most common are the spike aerator and core or plug aerator. Spike aerators poke holes in the ground with metal tines.
There are two main ways to aerate your entire lawn: core aeration and spike aeration. Core aeration, where plugs of soil are removed, is generally more effective and is recommended for compacted soil.