Argentine stem weevil
Listronotus bonariensis
It is a pest of grasses and cereals, with the larvae being more destructive than the adult insects.
The Argentine stem weevil is a small grey insect up to 3 mm (0.12 in) long, with a waxy covering. Soil particles adhere to this wax, and while the insect remains stationary, which it often does, this makes it well-camouflaged and difficult to spot. The larvae are cream-coloured grubs with brownish heads.
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