Crane Fly Larvae and Turf Damage Crane fly larvae, commonly referred to as grubs, exist in the upper layers of soil, where they damage grassroots and organic material. Their presence is most prominent in transition months, and their activity can lead to spongy ground and poor turf condition. Sports fields https://school-grounds-maintenanc20852.thenerdsblog.com/44767920/h1-dealing-with-crane-fly-larvae-for-reliable-turf-surfaces-h1