Field pea blackspot management guide for South Australia - 7 June 2021

Page last updated: Wednesday, 9 June 2021 - 10:41am

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 2021 to 6th June 2021 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.

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: 71.2 mm     Days with significant stubble moisture: 55

Forecast for crops sown on

6 June

13 June

20 June

Spores released

66%

79%

88%

Blackspot risk

Low

Low

Low

Blyth

Rainfall to date: 77.8 mm    Days with significant stubble moisture: 46

Forecast for crops sown on

6 June

13 June

20 June

Spores released

46%

62%

75%

Blackspot risk

Medium

Low

Low

Bute

Rainfall to date: 73.2 mm    Days with significant stubble moisture: 40

Forecast for crops sown on

6 June

13 June

20 June

Spores released

31%

48%

64%

Blackspot risk

Medium

Medium

Low

Ceduna

Rainfall to date: 76.3 mm    Days with significant stubble moisture: 44

Forecast for crops sown on

6 June

13 June

20 June

Spores released

41%

57%

72%

Blackspot risk

Medium

Medium

Low

Clare

Rainfall to date: 97.8 mm    Days with significant stubble moisture: 66

Forecast for crops sown on

6 June

13 June

20 June

Spores released

85%

92%

97%

Blackspot risk

Low

Low

Low

Cleve

Rainfall to date: 101 mm     Days with significant stubble moisture: 55

Forecast for crops sown on

6 June

13 June

20 June

Spores released

66%

79%

88%

Blackspot risk

Low

Low

Low

Crystal Brook

Rainfall to date: 60.5 mm    Days with significant stubble moisture: 32

Forecast for crops sown on

6 June

13 June

20 June

Spores released

15%

29%

46%

Blackspot risk

High

High

Medium

Eudunda

Rainfall to date: 67.8 mm    Days with significant stubble moisture: 48

Forecast for crops sown on

6 June

13 June

20 June

Spores released

50%

66%

79%

Blackspot risk

Medium

Low

Low

Farrell Flat

Rainfall to date: 73.4 mm    Days with significant stubble moisture: 41

Forecast for crops sown on

6 June

13 June

20 June

Spores released

34%

50%

66%

Blackspot risk

Medium

Medium

Low

Kapunda

Rainfall to date: 83.9 mm    Days with significant stubble moisture: 68

Forecast for crops sown on

6 June

13 June

20 June

Spores released

87%

94%

97%

Blackspot risk

Low

Low

Low

Keith

Rainfall to date: 105.9 mm    Days with significant stubble moisture: 58

Forecast for crops sown on

6 June

13 June

20 June

Spores released

72%

83%

91%

Blackspot risk

Low

Low

Low

Kimba

Rainfall to date: 76.6 mm    Days with significant stubble moisture: 36

Forecast for crops sown on

6 June

13 June

20 June

Spores released

23%

38%

55%

Blackspot risk

High

Medium

Medium

Kyancutta

Rainfall to date: 69.1 mm    Days with significant stubble moisture: 48

Forecast for crops sown on

6 June

13 June

20 June

Spores released

50%

66%

79%

Blackspot risk

Medium

Low

Low

Lock

Rainfall to date: 80.1 mm    Days with significant stubble moisture: 50

Forecast for crops sown on

6 June

13 June

20 June

Spores released

55%

70%

82%

Blackspot risk

Medium

Low

Low

Maitland

Rainfall to date: 115 mm    Days with significant stubble moisture: 54

Forecast for crops sown on

6 June

13 June

20 June

Spores released

64%

77%

87%

Blackspot risk

Low

Low

Low

Minlaton

Rainfall to date: 101.3 mm     Days with significant stubble moisture: 56

Forecast for crops sown on

6 June

13 June

20 June

Spores released

68%

80%

89%

Blackspot risk

Low

Low

Low

Minnipa Pirsa

Rainfall to date: 71.2 mm    Days with significant stubble moisture: 40

Forecast for crops sown on

6 June

13 June

20 June

Spores released

31%

48%

64%

Blackspot risk

Medium

Medium

Low

Mount Barker SA

Rainfall to date: 175.9 mm    Days with significant stubble moisture: 85

Forecast for crops sown on

6 June

13 June

20 June

Spores released

98%

100%

100%

Blackspot risk

Low

Low

Low

Murray Bridge

Rainfall to date: 72.8 mm    Days with significant stubble moisture: 47

Forecast for crops sown on

6 June

13 June

20 June

Spores released

48%

64%

77%

Blackspot risk

Medium

Low

Low

Naracoorte

Rainfall to date: 104.1 mm    Days with significant stubble moisture: 53

Forecast for crops sown on

6 June

13 June

20 June

Spores released

62%

75%

86%

Blackspot risk

Low

Low

Low

Nuriootpa

Rainfall to date: 77.4 mm    Days with significant stubble moisture: 62

Forecast for crops sown on

6 June

13 June

20 June

Spores released

79%

88%

94%

Blackspot risk

Low

Low

Low

Palmer

Rainfall to date: 85.6 mm    Days with significant stubble moisture: 49

Forecast for crops sown on

6 June

13 June

20 June

Spores released

53%

68%

80%

Blackspot risk

Medium

Low

Low

Parilla

Rainfall to date: 55.5 mm    Days with significant stubble moisture: 46

Forecast for crops sown on

6 June

13 June

20 June

Spores released

46%

62%

75%

Blackspot risk

Medium

Low

Low

Port Broughton

Rainfall to date: 81.6 mm    Days with significant stubble moisture: 52

Forecast for crops sown on

6 June

13 June

20 June

Spores released

59%

74%

85%

Blackspot risk

Medium

Low

Low

Riverton

Rainfall to date: 92.4 mm    Days with significant stubble moisture: 68

Forecast for crops sown on

6 June

13 June

20 June

Spores released

87%

94%

97%

Blackspot risk

Low

Low

Low

Roseworthy

Rainfall to date: 85.8 mm    Days with significant stubble moisture: 64

Forecast for crops sown on

6 June

13 June

20 June

Spores released

82%

90%

96%

Blackspot risk

Low

Low

Low

Sedan

Rainfall to date: 45.7 mm    Days with significant stubble moisture: 30

Forecast for crops sown on

6 June

13 June

20 June

Spores released

12%

25%

41%

Blackspot risk

High

High

Medium

Snowtown

Rainfall to date: 73.2 mm    Days with significant stubble moisture: 43

Forecast for crops sown on

6 June

13 June

20 June

Spores released

38%

55%

70%

Blackspot risk

Medium

Medium

Low

Strathalbyn

Rainfall to date: 145.9 mm    Days with significant stubble moisture: 74

Forecast for crops sown on

6 June

13 June

20 June

Spores released

93%

97%

99%

Blackspot risk

Low

Low

Low

Tepko

Rainfall to date: 72.5 mm    Days with significant stubble moisture: 44

Forecast for crops sown on

6 June

13 June

20 June

Spores released

41%

57%

72%

Blackspot risk

Medium

Medium

Low

Tumby Bay

Rainfall to date: 59.7 mm    Days with significant stubble moisture: 37

Forecast for crops sown on

6 June

13 June

20 June

Spores released

25%

41%

57%

Blackspot risk

High

Medium

Medium

Wolseley

Rainfall to date: 92.9 mm    Days with significant stubble moisture: 54

Forecast for crops sown on

6 June

13 June

20 June

Spores released

64%

77%

87%

Blackspot risk

Low

Low

Low

Yeelanna

Rainfall to date: 101.7 mm    Days with significant stubble moisture: 47

Forecast for crops sown on

6 June

13 June

20 June

Spores released

48%

64%

77%

Blackspot risk

Medium

Low

Low

Yorketown

Rainfall to date: 81.3 mm    Days with significant stubble moisture: 43

Forecast for crops sown on

6 June

13 June

20 June

Spores released

38%

55%

70%

Blackspot risk

Medium

Medium

Low

More information

For more information contact Dr Jenny Davidson at SARDI on ph +61 (0)8 8303 9389.

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Contact information

Jean Galloway
+61 (0)8 9690 2172