Field pea blackspot management guide for South Australia - 22 May 2023

Page last updated: Monday, 22 May 2023 - 12:16pm

Please note: This content may be out of date and is currently under review.

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 2023 to 21st May 2023 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

Balaklava

Last date used for prediction: 21 May 2023
Rainfall to date: 80.9 mm Days with significant stubble moisture: 53

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

64%

77%

87%

Blackspot risk

Low

Low

Low

Blyth

Last date used for prediction: 21 May 2023
Rainfall to date: 98.6 mm Days with significant stubble moisture: 55

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

68%

80%

89%

Blackspot risk

Low

Low

Low

Bute

Last date used for prediction: 21 May 2023
Rainfall to date: 94.2 mm Days with significant stubble moisture: 50

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

55%

68%

80%

Blackspot risk

Medium

Low

Low

Ceduna

Last date used for prediction: 21 May 2023
Rainfall to date: 88.5 mm Days with significant stubble moisture: 45

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

46%

62%

75%

Blackspot risk

Medium

Low

Low

Clare

Last date used for prediction: 21 May 2023
Rainfall to date: 115.5 mm Days with significant stubble moisture: 52

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

62%

75%

86%

Blackspot risk

Low

Low

Low

Cleve

Last date used for prediction: 21 May 2023
Rainfall to date: 108.4 mm Days with significant stubble moisture: 63

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

82%

90%

96%

Blackspot risk

Low

Low

Low

Crystal Brook

Last date used for prediction: 21 May 2023
Rainfall to date: 82.6 mm Days with significant stubble moisture: 40

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

34%

50%

66%

Blackspot risk

Medium

Medium

Low

Eudunda

Last date used for prediction: 21 May 2023
Rainfall to date: 80.7 mm Days with significant stubble moisture: 72

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

91%

96%

98%

Blackspot risk

Low

Low

Low

Farrell Flat

Last date used for prediction: 21 May 2023
Rainfall to date: 79.4 mm Days with significant stubble moisture: 44

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

43%

59%

74%

Blackspot risk

Medium

Medium

Low

Kapunda

Last date used for prediction: 21 May 2023
Rainfall to date: 97.3 mm Days with significant stubble moisture: 71

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

91%

96%

99%

Blackspot risk

Low

Low

Low

Keith

Last date used for prediction: 21 May 2023
Rainfall to date: 131.1 mm Days with significant stubble moisture: 69

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

88%

94%

97%

Blackspot risk

Low

Low

Low

Kimba

Last date used for prediction: 21 May 2023
Rainfall to date: 81.2 mm Days with significant stubble moisture: 44

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

41%

55%

70%

Blackspot risk

Medium

Medium

Low

Kyancutta

Last date used for prediction: 21 May 2023
Rainfall to date: 74.2 mm Days with significant stubble moisture: 32

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

15%

27%

43%

Blackspot risk

High

High

Medium

Lock

Last date used for prediction: 21 May 2023
Rainfall to date: 81.8 mm Days with significant stubble moisture: 45

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

43%

57%

72%

Blackspot risk

Medium

Medium

Low

Maitland

Last date used for prediction: 21 May 2023
Rainfall to date: 145.2 mm Days with significant stubble moisture: 71

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

91%

96%

99%

Blackspot risk

Low

Low

Low

Minlaton

Last date used for prediction: 21 May 2023
Rainfall to date: 91.7 mm Days with significant stubble moisture: 52

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

62%

75%

86%

Blackspot risk

Low

Low

Low

Minnipa PIRSA

Last date used for prediction: 21 May 2023
Rainfall to date: 74.4 mm Days with significant stubble moisture: 32

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

15%

27%

43%

Blackspot risk

High

High

Medium

Mount Barker SA

Last date used for prediction: 21 May 2023
Rainfall to date: 168.3 mm Days with significant stubble moisture: 81

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

97%

99%

100%

Blackspot risk

Low

Low

Low

Murray Bridge

Last date used for prediction: 21 May 2023
Rainfall to date: 103.3 mm Days with significant stubble moisture: 61

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

79%

88%

94%

Blackspot risk

Low

Low

Low

Naracoorte

Last date used for prediction: 21 May 2023
Rainfall to date: 135.1 mm Days with significant stubble moisture: 66

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

86%

93%

97%

Blackspot risk

Low

Low

Low

Nuriootpa

Last date used for prediction: 21 May 2023
Rainfall to date: 101.7 mm Days with significant stubble moisture: 64

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

83%

91%

96%

Blackspot risk

Low

Low

Low

Palmer

Last date used for prediction: 21 May 2023
Rainfall to date: 72.2 mm Days with significant stubble moisture: 47

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

50%

66%

79%

Blackspot risk

Medium

Low

Low

Parilla

Last date used for prediction: 21 May 2023
Rainfall to date: 83.1 mm Days with significant stubble moisture: 57

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

72%

83%

91%

Blackspot risk

Low

Low

Low

Port Broughton

Last date used for prediction: 21 May 2023
Rainfall to date: 70.1 mm Days with significant stubble moisture: 43

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

41%

57%

72%

Blackspot risk

Medium

Medium

Low

Riverton

Last date used for prediction: 21 May 2023
Rainfall to date: 97.8 mm Days with significant stubble moisture: 73

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

93%

97%

99%

Blackspot risk

Low

Low

Low

Roseworthy

Last date used for prediction: 21 May 2023
Rainfall to date: 59.3 mm Days with significant stubble moisture: 31

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

15%

29%

46%

Blackspot risk

High

High

Medium

Sedan

Last date used for prediction: 21 May 2023
Rainfall to date: 52.5 mm Days with significant stubble moisture: 43

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

38%

53%

68%

Blackspot risk

Medium

Medium

Low

Snowtown

Last date used for prediction: 21 May 2023
Rainfall to date: 61.2 mm Days with significant stubble moisture: 32

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

15%

27%

43%

Blackspot risk

High

High

Medium

Strathalbyn

Last date used for prediction: 21 May 2023
Rainfall to date: 119 mm Days with significant stubble moisture: 79

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

97%

99%

100%

Blackspot risk

Low

Low

Low

Tepko

Last date used for prediction: 21 May 2023
Rainfall to date: 70.5 mm Days with significant stubble moisture: 47

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

50%

66%

79%

Blackspot risk

Medium

Low

Low

Truro

Last date used for prediction: 21 May 2023
Rainfall to date: 118 mm Days with significant stubble moisture: 72

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

92%

97%

99%

Blackspot risk

Low

Low

Low

Tumby Bay

Last date used for prediction: 21 May 2023
Rainfall to date: 75.1 mm Days with significant stubble moisture: 48

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

53%

68%

80%

Blackspot risk

Medium

Low

Low

Wolseley

Last date used for prediction: 21 May 2023
Rainfall to date: 118.7 mm Days with significant stubble moisture: 75

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

94%

97%

99%

Blackspot risk

Low

Low

Low

Yeelanna

Last date used for prediction: 21 May 2023
Rainfall to date: 100.3 mm Days with significant stubble moisture: 57

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

70%

80%

89%

Blackspot risk

Low

Low

Low

Yorketown

Last date used for prediction: 21 May 2023
Rainfall to date: 85.5 mm Days with significant stubble moisture: 46

Forecast for crops sown on

22 May

29 May

5 Jun

Spores released

48%

64%

77%

Blackspot risk

Medium

Low

Low

More information

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