Farm Table says:
Battling net blotch in barley – when co-innovation goes to work in WA’s south – resistance detection and in-field solutions
The take home messages from this GRDC funded research are below. Please access the full paper via the link below for methodology, references, acknowledgements and discussion.
- Results from the first year of a three-year project between CCDM researchers and Western Australian farmers indicates barley net blotch Group 3 fungicide resistance is present in more locations in the south-west of WA than previous reports.
- Reduced sensitivity to Group 3 fungicides is now very common across the southern WA wheatbelt
- Working together, growers and researchers are developing an up-to-date snapshot of net blotch issues and solutions to control the disease.
Figure 4. Phenotypic test results of the high rainfall 2019 Farmer Cohort lesion isolations from south-west Western Australian barley samples. There are 210 isolations on the map, with 21 isolations categorized as sensitive, 161 as reduced sensitive and 28 as resistant.