cockchafer
/ˈkɒkˌtʃɑːfər/Definitions
1. noun
A large, greyish-brown beetle with a stout body, often found in fields and gardens, whose larvae feed on grass roots.
“The cockchafer infestation ruined the entire harvest.”
2. verb
To feed on or destroy by the action of cockchafers, especially their larvae.
“The cockchafered field was no longer suitable for farming.”