Patches of grass brown and die off. These patches are relatively small and the grass comes away easily form the soil when it is pulled.
The larvae of chafers. These are plump white grubs that are usually curved into a fat C shape with a brown head and three pairs of chubby legs. These grubs eat the roots of the grass until, when fully fed they pupate in the soil, emerging as beetles in the late summer.
The grubs eat the roots of grass killing it and causing extensive damage.
Organic – biological control (a nematode) can be watered into the soil in late summer when the soil is moist but warm. Rolling the grass in the spring with a heavy roller will crush the grubs.
Chemical – Apply Provado Lawn Grub killer in early Summer to help reduce their number