Pests in Wheat - In Crop
Seed gall nematode
Constraint – Seed gall nematode
- Microscopic, parasitic organism, with a wormlike appearance
Stunted plants with distorted leaves and seed heads
Stems swollen at ground level
At heading, plants have small seed heads with open glumes
Grain replaced by hard brown/black seed galls containing thousands of dry nematodes
Economic loss is very rare due to modern seed cleaning practices
Yield loss can be considerable if infection is severe
Seed gall nematode seldom causes economic losses as incidences of infection are very rare due to modern seed cleaning practices. Avoiding growing wheat or rye in infected paddocks for two years, use of clean seed, and application of seed cleaning practices can all help to control seed gall nematode.
Links and Resources
DAFWA - Seed gall nematode
What to look for, what else could it be, where did it come from, and how is it treated.