In some cases, the grubs do such a good job of aerification that control is considered to be undesirable. However, green June beetle mounds are usually not tolerated on highly visible areas such as the slopes of golf greens. Be sure you have green June beetles. Green June beetles are not the only animals that make mounds on turf. Mole crickets make mounds during the spring and fall on infested turf, primarily in the southern half of Alabama.
Earthworms also make mounds, the particles of which are distinct pellets.
To determine which animal is creating mounds in an area, use a mixture 1 or 2 tablespoons of lemon scented dish detergent in 1 gallon of water. Pour the solution over 1 or 2 square feet of the infested area. Wait a few minutes, and observe what comes out of the ground. You can also verify the presence of green June beetle grubs by digging up several samples at least 1 foot deep and 1 foot square with a shovel. Sift through the soil to find any insects.