Chafer beetles emerge from the lawn in May/June
                           and lay their eggs in the ground in two weeks. The eggs hatch into grubs feeding on the grass roots in August and September
                           before burrowing deep into the ground. They then lie dormant deep in the soil before moving to the surface in the spring to
                           emerge as beetles again. If the chafer's life cycle is not broken re-infestation occurs and the problem gets progressively
                           worse. Due to the Chafer grub's feeding habit, grass roots are severed leaving the turf easy to rip open by birds,
                           foxes, badgers etc looking for a tasty meal! 
The results can be very dramatic as the picture
                           below shows...