Description

Adult

Length of 5.5 -8 mm. Thorax shining and elytra reddish-yellow. Antennae entirely yellow. Thorax more shiny, less transverse and more rounded at sides in comparison with A. obscurus .

Larvae

Length up to 20 mm & width up to 1.5 mm. Body yellow, rigid and cylindrical. Mandible bears small tooth in the middle.

Eggs

Deposited singly or in small batches at a depth of 2-5 cm in the soil. Eggs are preferentially laid in damp or fresh ground.

Distribution

Throughout Europe, western parts of Asia, and now introduced into North America

Economic Host(s)

Wide range of root and leafy crops including sugarbeet, potatoes, oats and barley.

Symptoms/Signs

Plant damage includes boring and feeding of roots and injury to stem bases. Patchy seedling emergence, wilting of seedlings and plant bending are all symptoms.

Generations:

Generations: Generations: Generations: <1. The harmful larval stage can extend from 3-5 years.