What Are Crane Fly Larvae? Crane fly larvae, or leatherjackets, nest in the soil and attack grassroots and decomposing plant matter. They are most active in mild weather, often resulting in thinning turf and increased surface vulnerability. On grounds in use, this can interfere with play and increase upkeep requirements. https://arthurbywtr.blogvivi.com/39419409/h1-sustainable-methods-for-managing-crane-fly-larvae-and-improving-turf-health-h1