Leatherjackets are the leathery grey larvae stage of the European Crane Fly. They feed during the day at or below the surface on the roots and seedlings. The damage to the lawn will first appear as brown patches that soon become bare if infestations are heavy. The insect is most visible on damp, warm nights when they feed on grass blades and stems at the soil surface. They will also be found on driveways and walks early in the morning after a rain.

Life Cycle:
The adult crane fly looks like a giant mosquito and appears in late summer. The female lays black eggs in the grass or soil and the eggs hatch within two weeks and the larvae begin to feed. They feed from September until the soil starts to freeze. During the colder periods of winter, they burrow deep into the soil. As the temperatures rises in the spring, they will ascend to just below the soil surface and resume feeding until late May.

Control:
Leatherjackets can be controlled in early spring or late fall. Contact Kendall Lawn Care for proper diagnosis and control options.