Click beetles
yellowish brown to black. The eggs are laid in May or June in groups in the soil. They hatch about one month later and the larvae start to feed on roots [...] skinned. They are up to 25 mm long and usually shiny yellowish brown or light brown with a darker head. Larval development takes 4 to 5 years. When fully [...] feed on the roots and bore into the base of plants. This can cause the plants to wilt and die. Damage is more severe in young plants. Life cycle and appearance