Nysius (Wheat Bug) is a predator of forage brassica crops, causing most damage in
the first few weeks after sowing. When feeding on brassica seedlings the
developing plants become weak at ground level and often fall over. Nysius damage
is often identified by a “ringbarking” effect at the base of the plant. Nysius
are most active in dryland regions with increased plant damage occurring under
hot, dry conditions over the summer months. Nysius prefer an open ground cover.
Prevention and Control
- Ultrastrike Brassica seed treatment
- Control of weeds around crop borders will help reduce localised numbers
- Contact insecticide
- Under high populations it is recommended to use both a seed treatment and
contact insecticide