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Cockchafers, also known as Maybugs or Doodlebugs can often be seen on May evenings in the garden or flying into lit windows. They are quite large and emit a loud buzzing noise as they fly (hence the name doodlebug), but they are perfectly harmless. The adult beetles are not really a pest but their larvae do a lot of damage to crops and plants.The grubs are very appealing to corvids such as crows and magpies, and these birds often create a lot of holes in immaculate lawns digging up the cockchafer grubs.

There are currently no insecticidal products licensed to treat cockchafers. Control is biological with the use of nematodes, which are watered into the soil and attack the cockchafer grub.