Field pea blackspot management guide for South Australia - 6 May 2024

Page last updated: Tuesday, 7 May 2024 - 12:11pm

Field Pea Blackspot Management Guide is a location and season specific weekly forecast. It accounts for risks of spore showers, disease severity, and disease related yield loss suggesting a window of sowing dates that minimise risk of blackspot disease.

This prediction is based on DPIRD's Blackspot Manager model using weather data from 1st January 2024 to 5th May 2024 from the nearest weather station.

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 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. For more information on blackspot in South Australia contact Sara Blake at SARDI on (08) 8429 2248 or email sara.blake@sa.gov.au

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

Map showing the relative current risk of spores based upon Blackspot Model outputs for various locations in South Australia, 6th May 2024.
Map showing the relative current risk of spores based upon Blackspot Model outputs for various locations in South Australia, 6th May 2024.

Balaklava

Last date used for prediction: 5 May 2024
Rainfall to date: 11.2 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

1%

4%

13%

Blackspot risk

High

High

High

Blyth

Last date used for prediction: 5 May 2024
Rainfall to date: 20.2 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

1%

4%

13%

Blackspot risk

High

High

High

Bute

Last date used for prediction: 5 May 2024
Rainfall to date: 24 mm
Days with significant stubble moisture: 7

Forecast for crops sown on

6 May

13 May

20 May

Spores released

0%

0%

3%

Blackspot risk

High

High

High

Ceduna

Last date used for prediction: 5 May 2024
Rainfall to date: 24.6 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

1%

3%

12%

Blackspot risk

High

High

High

Clare

Last date used for prediction: 5 May 2024
Rainfall to date: 18.4 mm
Days with significant stubble moisture: 27

Forecast for crops sown on

6 May

13 May

20 May

Spores released

17%

27%

43%

Blackspot risk

High

High

Medium

Cleve

Last date used for prediction: 5 May 2024
Rainfall to date: 35.1 mm
Days with significant stubble moisture: 22

Forecast for crops sown on

6 May

13 May

20 May

Spores released

6%

13%

27%

Blackspot risk

High

High

High

Crystal Brook

Last date used for prediction: 5 May 2024
Rainfall to date: 40.5 mm
Days with significant stubble moisture: 22

Forecast for crops sown on

6 May

13 May

20 May

Spores released

6%

13%

27%

Blackspot risk

High

High

High

Eudunda

Last date used for prediction: 5 May 2024
Rainfall to date: 39.2 mm
Days with significant stubble moisture: 26

Forecast for crops sown on

6 May

13 May

20 May

Spores released

10%

19%

34%

Blackspot risk

High

High

Medium

Farrell Flat

Last date used for prediction: 5 May 2024
Rainfall to date: 19.1 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

4%

10%

23%

Blackspot risk

High

High

High

Kapunda

Last date used for prediction: 5 May 2024
Rainfall to date: 38.3 mm
Days with significant stubble moisture: 21

Forecast for crops sown on

6 May

13 May

20 May

Spores released

6%

13%

27%

Blackspot risk

High

High

High

Keith

Last date used for prediction: 5 May 2024
Rainfall to date: 62 mm
Days with significant stubble moisture: 29

Forecast for crops sown on

6 May

13 May

20 May

Spores released

19%

29%

46%

Blackspot risk

High

High

Medium

Kimba

Last date used for prediction: 5 May 2024
Rainfall to date: 18.3 mm
Days with significant stubble moisture: 7

Forecast for crops sown on

6 May

13 May

20 May

Spores released

0%

1%

6%

Blackspot risk

High

High

High

Kyancutta

Last date used for prediction: 5 May 2024
Rainfall to date: 35.2 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

1%

3%

12%

Blackspot risk

High

High

High

Lock

Last date used for prediction: 5 May 2024
Rainfall to date: 54.6 mm
Days with significant stubble moisture: 22

Forecast for crops sown on

6 May

13 May

20 May

Spores released

6%

13%

27%

Blackspot risk

High

High

High

Loxton

Last date used for prediction: 5 May 2024
Rainfall to date: 36.3 mm
Days with significant stubble moisture: 21

Forecast for crops sown on

6 May

13 May

20 May

Spores released

6%

13%

27%

Blackspot risk

High

High

High

Maitland

Last date used for prediction: 5 May 2024
Rainfall to date: 28.3 mm
Days with significant stubble moisture: 22

Forecast for crops sown on

6 May

13 May

20 May

Spores released

7%

15%

29%

Blackspot risk

High

High

High

Minlaton

Last date used for prediction: 5 May 2024
Rainfall to date: 31.3 mm
Days with significant stubble moisture: 28

Forecast for crops sown on

6 May

13 May

20 May

Spores released

17%

27%

43%

Blackspot risk

High

High

Medium

Minnipa PIRSA

Last date used for prediction: 5 May 2024
Rainfall to date: 27.3 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

1%

3%

12%

Blackspot risk

High

High

High

Mount Barker 

Last date used for prediction: 5 May 2024
Rainfall to date: 87.3 mm
Days with significant stubble moisture: 40

Forecast for crops sown on

6 May

13 May

20 May

Spores released

43%

55%

70%

Blackspot risk

Medium

Medium

Low

Murray Bridge

Last date used for prediction: 5 May 2024
Rainfall to date: 50.2 mm
Days with significant stubble moisture: 27

Forecast for crops sown on

6 May

13 May

20 May

Spores released

15%

25%

41%

Blackspot risk

High

High

Medium

Naracoorte

Last date used for prediction: 5 May 2024
Rainfall to date: 87.1 mm
Days with significant stubble moisture: 33

Forecast for crops sown on

6 May

13 May

20 May

Spores released

19%

29%

46%

Blackspot risk

High

High

Medium

Nuriootpa

Last date used for prediction: 5 May 2024
Rainfall to date: 39.3 mm
Days with significant stubble moisture: 21

Forecast for crops sown on

6 May

13 May

20 May

Spores released

6%

13%

27%

Blackspot risk

High

High

High

Palmer

Last date used for prediction: 5 May 2024
Rainfall to date: 37.2 mm
Days with significant stubble moisture: 28

Forecast for crops sown on

6 May

13 May

20 May

Spores released

17%

27%

43%

Blackspot risk

High

High

Medium

Parilla

Last date used for prediction: 5 May 2024
Rainfall to date: 39.5 mm
Days with significant stubble moisture: 26

Forecast for crops sown on

6 May

13 May

20 May

Spores released

23%

34%

50%

Blackspot risk

High

Medium

Medium

Port Broughton

Last date used for prediction: 5 May 2024
Rainfall to date: 18.6 mm
Days with significant stubble moisture: 7

Forecast for crops sown on

6 May

13 May

20 May

Spores released

0%

0%

3%

Blackspot risk

High

High

High

Riverton

Last date used for prediction: 5 May 2024
Rainfall to date: 23.4 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

1%

4%

13%

Blackspot risk

High

High

High

Roseworthy

Last date used for prediction: 5 May 2024
Rainfall to date: 28.5 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

1%

4%

13%

Blackspot risk

High

High

High

Sedan

Last date used for prediction: 5 May 2024
Rainfall to date: 32.3 mm
Days with significant stubble moisture: 28

Forecast for crops sown on

6 May

13 May

20 May

Spores released

17%

27%

43%

Blackspot risk

High

High

Medium

Snowtown

Last date used for prediction: 5 May 2024
Rainfall to date: 36.4 mm
Days with significant stubble moisture: 9

Forecast for crops sown on

6 May

13 May

20 May

Spores released

0%

0%

4%

Blackspot risk

High

High

High

Strathalbyn

Last date used for prediction: 5 May 2024
Rainfall to date: 67.8 mm
Days with significant stubble moisture: 35

Forecast for crops sown on

6 May

13 May

20 May

Spores released

31%

43%

59%

Blackspot risk

Medium

Medium

Medium

Tepko

Last date used for prediction: 5 May 2024
Rainfall to date: 38.5 mm
Days with significant stubble moisture: 27

Forecast for crops sown on

6 May

13 May

20 May

Spores released

15%

25%

41%

Blackspot risk

High

High

Medium

Truro

Last date used for prediction: 5 May 2024
Rainfall to date: 23.3 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

4%

10%

23%

Blackspot risk

High

High

High

Tumby Bay

Last date used for prediction: 5 May 2024
Rainfall to date: 87 mm
Days with significant stubble moisture: 22

Forecast for crops sown on

6 May

13 May

20 May

Spores released

6%

13%

27%

Blackspot risk

High

High

High

Wolseley

Last date used for prediction: 5 May 2024
Rainfall to date: 68.5 mm
Days with significant stubble moisture: 41

Forecast for crops sown on

6 May

13 May

20 May

Spores released

36%

48%

64%

Blackspot risk

Medium

Medium

Low

Yeelanna

Last date used for prediction: 5 May 2024
Rainfall to date: 58.6 mm
Days with significant stubble moisture: 24

Forecast for crops sown on

6 May

13 May

20 May

Spores released

9%

17%

31%

Blackspot risk

High

High

Medium

Yorketown

Last date used for prediction: 5 May 2024
Rainfall to date: 35.3 mm
Days with significant stubble moisture: 14

Forecast for crops sown on

6 May

13 May

20 May

Spores released

2%

5%

15%

Blackspot risk

High

High

High

More Information

For more information contact Ms Sara Blake at SARDI on ph: +61 8 8429 2248.