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.
Sowing time can depend on a range of factors and it is recommended to consult an agronomist to determine the optimal sowing window for your situation.
Missing a location or would like to receive email or sms alerts?
Sign up today to get alerts and add your local weather station. Text 'blackspot', your name and nearest weather station to 0475 959 932 or email BlackspotManager@dpird.wa.gov.au.
Key to blackspot severity scores
The aim is to delay sowing of field pea crops, where agronomically possible, until the majority of blackspot spores (approximately 60%) have been released prior to the crop emergence. This strategy reduces yield losses from blackspot.
| Blackspot risk | Spores released (%) | Yield loss for different levels of blackspot risk scenarios (%) |
|---|---|---|
| Low | 60 – 100 | 2 - 15 |
| Medium | 30 - 59 | 20 - 35 |
| High | 0 - 29 | 25 - 50 |
Bencubbin
Last date used for prediction: 11 June 2023
Rainfall to date: 115.8 mm Days with significant stubble moisture: 38
| 12 Jun | 19 Jun | 26 Jun |
| 29% spores released - blackspot risk high | 43% spores released - blackspot risk medium | 59% spores released - blackspot risk medium |
| Do not sow | Sow | Sow |
Cunderdin
Last date used for prediction: 11 June 2023
Rainfall to date: 168 mm Days with significant stubble moisture: 50
| 12 Jun | 19 Jun | 26 Jun |
| 57% spores released - blackspot risk medium | 72% spores released - blackspot risk low | 83% spores released - blackspot risk low |
| Sow | Sow | Sow |
Dalwallinu
Last date used for prediction: 11 June 2023
Rainfall to date: 95 mm Days with significant stubble moisture: 43
| 12 Jun | 19 Jun | 26 Jun |
| 41% spores released - blackspot risk medium | 55% spores released - blackspot risk medium | 70% spores released - blackspot risk low |
| Sow | Getting too late to sow | Too late to sow after 20 June |
Darkan
Last date used for prediction: 11 June 2023
Rainfall to date: 135.1 mm Days with significant stubble moisture: 62
| 12 Jun | 19 Jun | 26 Jun |
| 80% spores released - blackspot risk low | 89% spores released - blackspot risk low | 95% spores released - blackspot risk low |
| Sow | Sow | Sow |
Dinninup (Boyup Brook)
Last date used for prediction: 11 June 2023
Rainfall to date: 176.4 mm Days with significant stubble moisture: 58
| 12 Jun | 19 Jun | 26 Jun |
| 74% spores released - blackspot risk low | 85% spores released - blackspot risk low | 92% spores released - blackspot risk low |
| Sow | Sow | Sow
|
Ejanding (Dowerin)
Last date used for prediction: 11 June 2023
Rainfall to date: 134.2 mm Days with significant stubble moisture: 44
| 12 Jun | 19 Jun | 26 Jun |
| 43% spores released - blackspot risk medium | 59% spores released - blackspot risk medium | 74% spores released - blackspot risk low |
| Sow | Sow | Sow |
Gairdner
Last date used for prediction: 11 June 2023
Rainfall to date: 147.2 mm Days with significant stubble moisture: 47
| 12 Jun | 19 Jun | 26 Jun |
| 50% spores released - blackspot risk medium | 64% spores released - blackspot risk low | 77% spores released - blackspot risk low |
| Do not sow | Sow - do not sow dry | Sow - do not sow dry |
Grass Patch
Last date used for prediction: 11 June 2023
Rainfall to date: 89.8 mm Days with significant stubble moisture: 44
| 12 Jun | 19 Jun | 26 Jun |
| 43% spores released - blackspot risk medium | 57% spores released - blackspot risk medium | 72% spores released - blackspot risk low |
| Sow | Sow | Sow |
Jacup
Last date used for prediction: 11 June 2023
Rainfall to date: 184.1 mm Days with significant stubble moisture: 40
| 12 Jun | 19 Jun | 26 Jun |
| 34% spores released - blackspot risk medium | 50% spores released - blackspot risk medium | 66% spores released - blackspot risk low |
| Do not sow | Sow | Sow |
Katanning
Last date used for prediction: 11 June 2023
Rainfall to date: 124.2 mm Days with significant stubble moisture: 65
| 12 Jun | 19 Jun | 26 Jun |
| 85% spores released - blackspot risk low | 92% spores released - blackspot risk low | 97% spores released - blackspot risk low |
| Sow | Sow | Sow |
Kojonup
Last date used for prediction: 11 June 2023
Rainfall to date: 131.2 mm Days with significant stubble moisture: 41
| 12 Jun | 19 Jun | 26 Jun |
| 36% spores released - blackspot risk medium | 53% spores released - blackspot risk medium | 68% spores released - blackspot risk low |
| Do not sow | Sow | Sow |
Kondinin
Last date used for prediction: 11 June 2023
Rainfall to date: 184.4 mm Days with significant stubble moisture: 48
| 12 Jun | 19 Jun | 26 Jun |
| 53% spores released - blackspot risk medium | 68% spores released - blackspot risk low | 80% spores released - blackspot risk low |
| Sow | Sow | Sow |
Kulin
Last date used for prediction: 11 June 2023
Rainfall to date: 177.1 mm Days with significant stubble moisture: 44
| 12 Jun | 19 Jun | 26 Jun |
| 43% spores released - blackspot risk medium | 59% spores released - blackspot risk medium | 74% spores released - blackspot risk low |
| Sow | Sow | Sow |
Lake King
Last date used for prediction: 11 June 2023
Rainfall to date: 156 mm Days with significant stubble moisture: 30
| 12 Jun | 19 Jun | 26 Jun |
| 13% spores released - blackspot risk high | 25% spores released - blackspot risk high | 41% spores released - blackspot risk medium |
| Sow | Sow | Sow |
Merredin
Last date used for prediction: 11 June 2023
Rainfall to date: 116.1 mm Days with significant stubble moisture: 40
| 12 Jun | 19 Jun | 26 Jun |
| 34% spores released - blackspot risk medium | 50% spores released - blackspot risk medium | 66% spores released - blackspot risk low |
| Sow | Sow | Sow |
Mingenew
Last date used for prediction: 11 June 2023
Rainfall to date: 93 mm Days with significant stubble moisture: 31
| 12 Jun | 19 Jun | 26 Jun |
| 15% spores released - blackspot risk high | 29% spores released - blackspot risk high | 46% spores released - blackspot risk medium |
| Do not sow | Do not sow | Sow |
Moora North West
Last date used for prediction: 11 June 2023
Rainfall to date: 106 mm Days with significant stubble moisture: 49
| 12 Jun | 19 Jun | 26 Jun |
| 55% spores released - blackspot risk medium | 70% spores released - blackspot risk low | 82% spores released - blackspot risk low |
| Sow | Sow | Sow |
Mount Burdett
Last date used for prediction: 11 June 2023
Rainfall to date: 130.6 mm Days with significant stubble moisture: 65
| 12 Jun | 19 Jun | 26 Jun |
| 85% spores released - blackspot risk low | 91% spores released - blackspot risk low | 96% spores released - blackspot risk low |
| Sow | Sow | Sow |
Mount Howick
Last date used for prediction: 11 June 2023
Rainfall to date: 175 mm Days with significant stubble moisture: 78
| 12 Jun | 19 Jun | 26 Jun |
| 96% spores released - blackspot risk low | 99% spores released - blackspot risk low | 100% spores released - blackspot risk low |
| Sow | Sow | Sow |
Mount Madden East
Last date used for prediction: 11 June 2023
Rainfall to date: 112.2 mm Days with significant stubble moisture: 29
| 12 Jun | 19 Jun | 26 Jun |
| 12% spores released - blackspot risk high | 25% spores released - blackspot risk high | 41% spores released - blackspot risk medium |
| Sow | Sow | Sow |
Mt Barker WA
Last date used for prediction: 11 June 2023
Rainfall to date: 223.7 mm Days with significant stubble moisture: 85
| 12 Jun | 19 Jun | 26 Jun |
| 99% spores released - blackspot risk low | 100% spores released - blackspot risk low | 100% spores released - blackspot risk low |
| Sow - do not sow dry | Sow - do not sow dry | Sow - do not sow dry |
Mullewa
Last date used for prediction: 11 June 2023
Rainfall to date: 125.2 mm Days with significant stubble moisture: 50
| 12 Jun | 19 Jun | 26 Jun |
| 57% spores released - blackspot risk medium | 72% spores released - blackspot risk low | 83% spores released - blackspot risk low |
| Sow | Sow | Sow |
Narrogin
Last date used for prediction: 11 June 2023
Rainfall to date: 186 mm Days with significant stubble moisture: 57
| 12 Jun | 19 Jun | 26 Jun |
| 72% spores released - blackspot risk low | 83% spores released - blackspot risk low | 91% spores released - blackspot risk low |
| Sow | Sow | Sow |
Newdegate
Last date used for prediction: 11 June 2023
Rainfall to date: 142 mm Days with significant stubble moisture: 45
| 12 Jun | 19 Jun | 26 Jun |
| 46% spores released - blackspot risk medium | 59% spores released - blackspot risk medium | 74% spores released - blackspot risk low |
| Sow | Sow | Sow |
Northam
Last date used for prediction: 11 June 2023
Rainfall to date: 161.6 mm Days with significant stubble moisture: 53
| 12 Jun | 19 Jun | 26 Jun |
| 64% spores released - blackspot risk low | 77% spores released - blackspot risk low | 87% spores released - blackspot risk low |
| Sow | Sow | Sow |
Pingaring
Last date used for prediction: 11 June 2023
Rainfall to date: 240 mm Days with significant stubble moisture: 51
| 12 Jun | 19 Jun | 26 Jun |
| 59% spores released - blackspot risk medium | 72% spores released - blackspot risk low | 83% spores released - blackspot risk low |
| Sow | Sow | Sow |
Pingrup
Last date used for prediction: 11 June 2023
Rainfall to date: 143.9 mm Days with significant stubble moisture: 46
| 12 Jun | 19 Jun | 26 Jun |
| 48% spores released - blackspot risk medium | 64% spores released - blackspot risk low | 77% spores released - blackspot risk low |
| Sow | Sow | Sow |
Ravensthorpe
Last date used for prediction: 11 June 2023
Rainfall to date: 173 mm Days with significant stubble moisture: 54
| 12 Jun | 19 Jun | 26 Jun |
| 66% spores released - blackspot risk low | 77% spores released - blackspot risk low | 87% spores released - blackspot risk low |
| Sow | Sow | Sow |
Ridley North
Last date used for prediction: 11 June 2023
Rainfall to date: 89.8 mm Days with significant stubble moisture: 57
| 12 Jun | 19 Jun | 26 Jun |
| 70% spores released - blackspot risk low | 80% spores released - blackspot risk low | 89% spores released - blackspot risk low |
| Sow | Sow | Sow |
Salmon Gums
Last date used for prediction: 11 June 2023
Rainfall to date: 109.2 mm Days with significant stubble moisture: 62
| 12 Jun | 19 Jun | 26 Jun |
| 80% spores released - blackspot risk low | 88% spores released - blackspot risk low | 94% spores released - blackspot risk low |
| Sow | Sow | Sow |
Scaddan
Last date used for prediction: 11 June 2023
Rainfall to date: 88.2 mm Days with significant stubble moisture: 37
| 12 Jun | 19 Jun | 26 Jun |
| 25% spores released - blackspot risk high | 38% spores released - blackspot risk medium | 55% spores released - blackspot risk medium |
| Do not sow | Do not sow | Sow |
Tammin
Last date used for prediction: 11 June 2023
Rainfall to date: 166.8 mm Days with significant stubble moisture: 46
| 12 Jun | 19 Jun | 26 Jun |
| 48% spores released - blackspot risk medium | 64% spores released - blackspot risk low | 77% spores released - blackspot risk low |
| Sow | Sow | Sow |
Wattening (Bolgart & Toodyay)
Last date used for prediction: 11 June 2023
Rainfall to date: 151.6 mm Days with significant stubble moisture: 48
| 12 Jun | 19 Jun | 26 Jun |
| 53% spores released - blackspot risk medium | 68% spores released - blackspot risk low | 80% spores released - blackspot risk low |
| Sow | Sow | Sow |
