Field pea blackspot management guide for South Australia - 23 May 2022

Page last updated: Tuesday, 24 May 2022 - 2:36pm

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 2022 to 22nd May 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

Last date used for prediction: 21 May 2022
Rainfall to date: 89.7 mm Days with significant stubble moisture: 45

Forecast for crops sown on

21 May

28 May

4 June

Spores released

43%

55%

70%

Blackspot risk

Medium

Medium

Low

Blyth

Last date used for prediction: 21 May 2022
Rainfall to date: 56.5 mm Days with significant stubble moisture: 43

Forecast for crops sown on

21 May

28 May

4 June

Spores released

38%

50%

66%

Blackspot risk

Medium

Medium

Low

Bute

Last date used for prediction: 21 May 2022
Rainfall to date: 68.4 mm Days with significant stubble moisture: 29

Forecast for crops sown on

21 May

28 May

4 June

Spores released

10%

19%

34%

Blackspot risk

High

High

Medium

Ceduna

Last date used for prediction: 21 May 2022
Rainfall to date: 137 mm Days with significant stubble moisture: 36

Forecast for crops sown on

21 May

28 May

4 June

Spores released

23%

34%

50%

Blackspot risk

High

Medium

Medium

Clare

Last date used for prediction: 21 May 2022
Rainfall to date: 75.5 mm Days with significant stubble moisture: 35

Forecast for crops sown on

21 May

28 May

4 June

Spores released

21%

31%

48%

Blackspot risk

High

Medium

Medium

Cleve

Last date used for prediction: 21 May 2022
Rainfall to date: 180.8 mm Days with significant stubble moisture: 61

Forecast for crops sown on

21 May

28 May

4 June

Spores released

77%

85%

92%

Blackspot risk

Low

Low

Low

Crystal Brook

Last date used for prediction: 21 May 2022
Rainfall to date: 51.3 mm Days with significant stubble moisture: 14

Forecast for crops sown on

21 May

28 May

4 June

Spores released

0%

1%

6%

Blackspot risk

High

High

High

Eudunda

Last date used for prediction: 21 May 2022
Rainfall to date: 118.7 mm Days with significant stubble moisture: 67

Forecast for crops sown on

21 May

28 May

4 June

Spores released

86%

92%

97%

Blackspot risk

Low

Low

Low

Farrell Flat

Last date used for prediction: 21 May 2022
Rainfall to date: 86.8 mm Days with significant stubble moisture: 44

Forecast for crops sown on

21 May

28 May

4 June

Spores released

41%

53%

68%

Blackspot risk

Medium

Medium

Low

Kapunda

Last date used for prediction: 21 May 2022
Rainfall to date: 97.8 mm Days with significant stubble moisture: 53

Forecast for crops sown on

21 May

28 May

4 June

Spores released

62%

74%

85%

Blackspot risk

Low

Low

Low

Keith

Last date used for prediction: 21 May 2022
Rainfall to date: 98.5 mm Days with significant stubble moisture: 58

Forecast for crops sown on

21 May

28 May

4 June

Spores released

72%

82%

90%

Blackspot risk

Low

Low

Low

Kimba

Last date used for prediction: 21 May 2022
Rainfall to date: 265.2 mm Days with significant stubble moisture: 39

Forecast for crops sown on

21 May

28 May

4 June

Spores released

29%

41%

57%

Blackspot risk

High

Medium

Medium

Kyancutta

Last date used for prediction: 21 May 2022
Rainfall to date: 103.1 mm Days with significant stubble moisture: 32

Forecast for crops sown on

21 May

28 May

4 June

Spores released

15%

25%

41%

Blackspot risk

High

High

Medium

Lock

Last date used for prediction: 21 May 2022
Rainfall to date: 144.8 mm Days with significant stubble moisture: 39

Forecast for crops sown on

21 May

28 May

4 June

Spores released

29%

41%

57%

Blackspot risk

High

Medium

Medium

Maitland

Last date used for prediction: 21 May 2022
Rainfall to date: 126.4 mm Days with significant stubble moisture: 60

Forecast for crops sown on

21 May

28 May

4 June

Spores released

75%

86%

93%

Blackspot risk

Low

Low

Low

Minlaton

Last date used for prediction: 21 May 2022
Rainfall to date: 126.1 mm Days with significant stubble moisture: 61

Forecast for crops sown on

21 May

28 May

4 June

Spores released

77%

86%

93%

Blackspot risk

Low

Low

Low

Minnipa Pirsa

Last date used for prediction: 21 May 2022
Rainfall to date: 129.2 mm Days with significant stubble moisture: 40

Forecast for crops sown on

21 May

28 May

4 June

Spores released

31%

43%

59%

Blackspot risk

Medium

Medium

Medium

Mount Barker 

Last date used for prediction: 21 May 2022
Rainfall to date: 117 mm Days with significant stubble moisture: 71

Forecast for crops sown on

21 May

28 May

4 June

Spores released

90%

96%

98%

Blackspot risk

Low

Low

Low

Murray Bridge

Last date used for prediction: 21 May 2022
Rainfall to date: 93.2 mm Days with significant stubble moisture: 53

Forecast for crops sown on

21 May

28 May

4 June

Spores released

62%

74%

85%

Blackspot risk

Low

Low

Low

Naracoorte

Last date used for prediction: 21 May 2022
Rainfall to date: 111.4 mm Days with significant stubble moisture: 60

Forecast for crops sown on

21 May

28 May

4 June

Spores released

75%

86%

93%

Blackspot risk

Low

Low

Low

Nuriootpa

Last date used for prediction: 21 May 2022
Rainfall to date: 77.5 mm Days with significant stubble moisture: 35

Forecast for crops sown on

21 May

28 May

4 June

Spores released

21%

34%

50%

Blackspot risk

High

Medium

Medium

Palmer

Last date used for prediction: 21 May 2022
Rainfall to date: 100.3 mm Days with significant stubble moisture: 63

Forecast for crops sown on

21 May

28 May

4 June

Spores released

80%

88%

94%

Blackspot risk

Low

Low

Low

Parilla

Last date used for prediction: 21 May 2022
Rainfall to date: 132.2 mm Days with significant stubble moisture: 62

Forecast for crops sown on

21 May

28 May

4 June

Spores released

79%

86%

93%

Blackspot risk

Low

Low

Low

Port Broughton

Last date used for prediction: 21 May 2022
Rainfall to date: 63.7 mm Days with significant stubble moisture: 19

Forecast for crops sown on

21 May

28 May

4 June

Spores released

1%

4%

13%

Blackspot risk

High

High

High

Riverton

Last date used for prediction: 21 May 2022
Rainfall to date: 81.4 mm Days with significant stubble moisture: 51

Forecast for crops sown on

21 May

28 May

4 June

Spores released

57%

68%

80%

Blackspot risk

Medium

Low

Low

Roseworthy

Last date used for prediction: 21 May 2022
Rainfall to date: 106 mm Days with significant stubble moisture: 31

Forecast for crops sown on

21 May

28 May

4 June

Spores released

13%

23%

38%

Blackspot risk

High

High

Medium

Sedan

Last date used for prediction: 21 May 2022
Rainfall to date: 71.9 mm Days with significant stubble moisture: 48

Forecast for crops sown on

21 May

28 May

4 June

Spores released

50%

62%

75%

Blackspot risk

Medium

Low

Low

Snowtown

Last date used for prediction: 21 May 2022
Rainfall to date: 71.9 mm Days with significant stubble moisture: 22

Forecast for crops sown on

21 May

28 May

4 June

Spores released

3%

7%

19%

Blackspot risk

High

High

High

Strathalbyn

Last date used for prediction: 21 May 2022
Rainfall to date: 102 mm Days with significant stubble moisture: 57

Forecast for crops sown on

21 May

28 May

4 June

Spores released

70%

80%

89%

Blackspot risk

Low

Low

Low

Tepko

Last date used for prediction: 21 May 2022
Rainfall to date: 79.3 mm Days with significant stubble moisture: 53

Forecast for crops sown on

21 May

28 May

4 June

Spores released

62%

72%

83%

Blackspot risk

Low

Low

Low

Tumby Bay

Last date used for prediction: 21 May 2022
Rainfall to date: 195.8 mm Days with significant stubble moisture: 56

Forecast for crops sown on

21 May

28 May

4 June

Spores released

68%

77%

87%

Blackspot risk

Low

Low

Low

Wolseley

Last date used for prediction: 21 May 2022
Rainfall to date: 78 mm Days with significant stubble moisture: 47

Forecast for crops sown on

21 May

28 May

4 June

Spores released

48%

64%

77%

Blackspot risk

Medium

Low

Low

Yeelanna

Last date used for prediction: 21 May 2022
Rainfall to date: 204.8 mm Days with significant stubble moisture: 49

Forecast for crops sown on

21 May

28 May

4 June

Spores released

53%

64%

77%

Blackspot risk

Medium

Low

Low

Yorketown

Last date used for prediction: 21 May 2022
Rainfall to date: 111.2 mm Days with significant stubble moisture: 44

Forecast for crops sown on

21 May

28 May

4 June

Spores released

41%

55%

70%

Blackspot risk

Medium

Medium

Low

More Information

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

Contact information

Jean Galloway
+61 (0)8 9690 2172