Risk tables
The following table shows (districts of Western Australia listed in an alphabetical order) risk of blackleg spore showers coinciding with the seedling susceptible stage relative to the sowing date.
Badgingarra
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Bolgart
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Corrigin
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Moderate |
Darkan
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Moderate |
Eradu
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Esperance
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Moderate | Moderate | High |
Gibson
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Moderate | Moderate | High |
Jerramungup
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Moderate | Moderate | High |
Kalannie
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Katanning
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Moderate |
Kendenup
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Moderate |
Kojonup
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Kulin
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Moderate |
Lake Grace
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Moderate |
Lake King
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Moderate | Moderate | High |
Merredin
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Mingenew
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Moora NW
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Mount Barker
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Moderate | Moderate |
Mullewa
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Munglinup
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Moderate | Moderate | High |
Narrogin
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Moderate |
Northam
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Northampton
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Salmon Gums
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Moderate | Moderate | High |
Scaddan
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Moderate | High | High |
South Stirling
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Moderate | Moderate | High |
Tammin
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Three Springs
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Wagin
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Williams
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Wongan Hills
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
York
| Forecast for crops sown on | 8 Apr | 15 Apr | 22 Apr |
| Blackleg risk | Low | Low | Low |
Key to blackleg risk management for your district
| Blackleg spore shower risk | Suggestions |
| Low | Consider applying seed dressing if varieties below MR-MS are sown |
| Medium | Consider applying recommended fungicide if varieties below MR are sown |
| High | Consider applying recommended fungicide if varieties below MR-R are sown |
In high disease pressure situations seed dressing alone may not be sufficient in providing adequate protection from disease. In this scenario consider applying additional protection either using fertiliser based fungicide or foliar fungicide application. Consider applying foliar fungicide if none of the upfront (seed or fertiliser based) fungicide is applied.
More information
For more information refer to Australian Canola Variety Ratings 2024 Autumn Fact Sheet Blackleg Management Guide, produced by Grains Research and Development Corporation (GRDC).
Contact information
Jean Galloway
+61 (0)8 9690 2172
Email Jean Galloway
Important disclaimers
You may notice weather station changes for some locations. This is to ensure that the weather data being used is the most accurate available for the area and uses open DPIRD and BOM weather stations whenever possible. In some locations, a suitable weather station may not be available and so we may use interpolated weather data, which uses data from surrounding stations to create reasonable values for missing weather data.
The Chief Executive Officer of the Department of Primary Industries and Regional Development and the State of Western Australia accept no liability whatsoever by reason of negligence or otherwise arising from the use or release of this information or any part of it. Copyright © Department of Primary Industries and Regional Development, 2024.
Report information
This report was generated by jimmyng using the {blackleg.sporacle} package version 3.0.1 with R version 4.2.2 (2022-10-31) x86_64 under macOS version 23.2.0 for architecture x86_64 on 2024-04-22 10:00:04.
