Asparagus beetle

Symptoms
Conspicuous adults up to 8 mm long with yellow and black wing cases feed on asparagus leaves and stems from May onwards. If the bark around the stem circumference has been completely removed, the asparagus dries out and turns yellow-brown.

Spot them
The adult asparagus beetles are 6-8mm long, black with six yellow blotches on their wings and a red thorax.