Chafer Grubs are the larvae of the Chafer Beetle and can cause severe damage to lawns or any grassed area. The small brown Chafer Beetle only survives for 2-3 weeks once reaching maturity and are harmless as they don't cause any damage to your beloved lawn. ... Of course, Chafer Grubs are not all bad.

What damage do chafer grubs do?

The chafer grub burrows holes through vegetation including lawns, resulting in large patches of bare brown grass. If they are left untreated, they can cause extensive damage to your lawn by enticing predators such as birds, badgers and foxes to dig for a tasty meal.

What does a chafer grub turn into?

When the chafer grub has built up enough food reserves it grows a hard shell and transforms into a pupa. This usually happens in the spring as the soil is warming. It stays in this phase for around 4 weeks whilst the body of the insect is broken down and rebuilt into an adult beetle.