Field pea blackspot management guide for South Australia - 18 April 2022

Page last updated: Wednesday, 20 April 2022 - 7:19am

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 1 January 2022 to 17 April 2022 from the nearest weather station.

You may notice some 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 can be influenced by BOM locations. The locations that have changed are Hart now Blyth, Bordertown now Wolseley, Kingsford now Roseworthy, Lameroo now Parilla, Mannun now Tepko, and Mypolonga now Murray Bridge.

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

Balaklava

Rainfall to date: 53.5 mm Days with significant stubble moisture: 31

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

13%

25%

41%

Blackspot risk

High

High

Medium

Blyth

Rainfall to date: 45.4 mm Days with significant stubble moisture: 36

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

23%

36%

53%

Blackspot risk

High

Medium

Medium

Bute

Rainfall to date: 54.6 mm Days with significant stubble moisture: 14

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

0%

2%

7%

Blackspot risk

High

High

High

Ceduna

Rainfall to date: 79.6 mm Days with significant stubble moisture: 16

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

0%

3%

10%

Blackspot risk

High

High

High

Clare

Rainfall to date: 61.5 mm Days with significant stubble moisture: 24

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

4%

12%

25%

Blackspot risk

High

High

High

Cleve

Rainfall to date: 157 mm Days with significant stubble moisture: 42

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

36%

53%

68%

Blackspot risk

Medium

Medium

Low

Crystal Brook

Rainfall to date: 48 mm Days with significant stubble moisture: 14

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

0%

2%

7%

Blackspot risk

High

High

High

Eudunda

Rainfall to date: 85.5 mm Days with significant stubble moisture: 37

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

25%

38%

55%

Blackspot risk

High

Medium

Medium

Farrell Flat

Rainfall to date: 69.7 mm Days with significant stubble moisture: 30

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

12%

23%

38%

Blackspot risk

High

High

Medium

Kapunda

Rainfall to date: 68.7 mm Days with significant stubble moisture: 33

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

17%

29%

46%

Blackspot risk

High

High

Medium

Keith

Rainfall to date: 67.5 mm Days with significant stubble moisture: 29

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

10%

21%

36%

Blackspot risk

High

High

Medium

Kimba

Rainfall to date: 245.6 mm Days with significant stubble moisture: 22

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

3%

10%

23%

Blackspot risk

High

High

High

Kyancutta

Rainfall to date: 80.8 mm Days with significant stubble moisture: 20

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

2%

7%

19%

Blackspot risk

High

High

High

Lock

Rainfall to date: 129.4 mm Days with significant stubble moisture: 21

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

2%

9%

21%

Blackspot risk

High

High

High

Maitland

Rainfall to date: 103.6 mm Days with significant stubble moisture: 34

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

19%

31%

48%

Blackspot risk

High

Medium

Medium

Minlaton

Rainfall to date: 111.3 mm Days with significant stubble moisture: 43

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

38%

53%

68%

Blackspot risk

Medium

Medium

Low

Minnipa PIRSA

Rainfall to date: 100.4 mm Days with significant stubble moisture: 18

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

1%

5%

15%

Blackspot risk

High

High

High

Mount Barker

Rainfall to date: 80.3 mm Days with significant stubble moisture: 45

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

43%

57%

72%

Blackspot risk

Medium

Medium

Low

Murray Bridge

Rainfall to date: 53 mm Days with significant stubble moisture: 32

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

15%

27%

43%

Blackspot risk

High

High

Medium

Naracoorte

Rainfall to date: 75.8 mm Days with significant stubble moisture: 31

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

13%

25%

41%

Blackspot risk

High

High

Medium

Nuriootpa

Rainfall to date: 56.1 mm Days with significant stubble moisture: 21

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

2%

7%

19%

Blackspot risk

High

High

High

Palmer

Rainfall to date: 59.1 mm Days with significant stubble moisture: 31

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

13%

25%

41%

Blackspot risk

High

High

Medium

Parilla

Rainfall to date: 101.1 mm Days with significant stubble moisture: 34

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

19%

31%

48%

Blackspot risk

High

Medium

Medium

Port Broughton

Rainfall to date: 53.2 mm Days with significant stubble moisture: 8

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

0%

0%

2%

Blackspot risk

High

High

High

Riverton

Rainfall to date: 64.3 mm Days with significant stubble moisture: 35

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

21%

34%

50%

Blackspot risk

High

Medium

Medium

Roseworthy

Rainfall to date: 83.6 mm Days with significant stubble moisture: 18

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

1%

4%

13%

Blackspot risk

High

High

High

Sedan

Rainfall to date: 54.8 mm Days with significant stubble moisture: 29

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

10%

21%

36%

Blackspot risk

High

High

Medium

Snowtown

Rainfall to date: 63.7 mm Days with significant stubble moisture: 15

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

0%

2%

9%

Blackspot risk

High

High

High

Strathalbyn

Rainfall to date: 60.7 mm Days with significant stubble moisture: 30

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

12%

23%

38%

Blackspot risk

High

High

Medium

Tepko

Rainfall to date: 46.1 mm Days with significant stubble moisture: 24

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

4%

12%

25%

Blackspot risk

High

High

High

Tumby Bay

Rainfall to date: 175.4 mm Days with significant stubble moisture: 36

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

23%

38%

55%

Blackspot risk

High

Medium

Medium

Wolseley

Rainfall to date: 41.6 mm Days with significant stubble moisture: 23

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

3%

10%

23%

Blackspot risk

High

High

High

Yeelanna

Rainfall to date: 191.2 mm Days with significant stubble moisture: 30

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

12%

25%

41%

Blackspot risk

High

High

Medium

Yorketown

Rainfall to date: 99.9 mm Days with significant stubble moisture: 34

Forecast for crops sown on

17 Apr

24 Apr

1 May

Spores released

19%

34%

50%

Blackspot risk

High

Medium

Medium


Contact information

Jean Galloway
+61 (0)8 9690 2172