White grubs are making their presence in lawns across the valley causing gradual thinning and weakening of turf-grass. White grubs are the larval stage of scarab beetles (aka June beetles, dung beetles, and masked chafers). Arizona has many different species of scarab beetles and most of which do not cause any damage, however, there are several species that can wreak havoc on turf-grass areas and other cultivated plants.
The white grub larvas start off by feeding on the turf-grass roots causing a weakening of the strand and gradual thinning. The damage may start off in small patches, gradually turning into much larger areas, even with adequate soil moisture. These grubs also attract larger animals such as birds, raccoons, and other small mammals who hunt for these insects as a source of food. These small mammals can also propose more unwarranted damage to the turf areas in your communities and lawn.
However, even though these pests can propose a problem in communities around the valley, it can be treated! There are different sources of insecticides that can treat the affected areas, reducing the amount of damage these grubs can cause. If you are seeing thinning areas in your turf, contact your landscape professional to see what options you have for treatment.