Field pea blackspot management guide for South Australia - 26 June 2023

Page last updated: Tuesday, 27 June 2023 - 7:36am

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 2023 to 25th June 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

Map showing the relative current risk of spores based upon Blackspot Model outputs for various locations in South Australia, 26th June 2023.
Map showing the relative current risk of spores based upon Blackspot Model outputs for various locations in South Australia, 26th June 2023.

Balaklava

Last date used for prediction: 25 June 2023
Rainfall to date: 154.9 mm
Days with significant stubble moisture: 88

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

99%

100%

100%

Blackspot risk

Low

Low

Low

Blyth

Last date used for prediction: 25 June 2023
Rainfall to date: 167.3 mm
Days with significant stubble moisture: 81

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

97%

99%

100%

Blackspot risk

Low

Low

Low

Bute

Last date used for prediction: 25 June 2023
Rainfall to date: 173.7 mm
Days with significant stubble moisture: 79

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

97%

99%

100%

Blackspot risk

Low

Low

Low

Ceduna

Last date used for prediction: 25 June 2023
Rainfall to date: 119.2 mm
Days with significant stubble moisture: 71

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

91%

96%

99%

Blackspot risk

Low

Low

Low

Clare

Last date used for prediction: 25 June 2023
Rainfall to date: 226.8 mm
Days with significant stubble moisture: 86

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

99%

100%

100%

Blackspot risk

Low

Low

Low

Cleve

Last date used for prediction: 25 June 2023
Rainfall to date: 161.8 mm
Days with significant stubble moisture: 90

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

99%

100%

100%

Blackspot risk

Low

Low

Low

Crystal Brook

Last date used for prediction: 25 June 2023
Rainfall to date: 171.7 mm
Days with significant stubble moisture: 70

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

90%

96%

98%

Blackspot risk

Low

Low

Low

Eudunda

Last date used for prediction: 25 June 2023
Rainfall to date: 172.2 mm
Days with significant stubble moisture: 103

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Farrell Flat

Last date used for prediction: 25 June 2023
Rainfall to date: 184.9 mm
Days with significant stubble moisture: 79

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

97%

99%

100%

Blackspot risk

Low

Low

Low

Kapunda

Last date used for prediction: 25 June 2023
Rainfall to date: 206.6 mm
Days with significant stubble moisture: 107

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Keith

Last date used for prediction: 25 June 2023
Rainfall to date: 291.8 mm
Days with significant stubble moisture: 100

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Kimba

Last date used for prediction: 25 June 2023
Rainfall to date: 145.1 mm
Days with significant stubble moisture: 71

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

91%

96%

99%

Blackspot risk

Low

Low

Low

Kyancutta

Last date used for prediction: 25 June 2023
Rainfall to date: 108 mm
Days with significant stubble moisture: 49

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

55%

70%

82%

Blackspot risk

Medium

Low

Low

Lock

Last date used for prediction: 25 June 2023
Rainfall to date: 160.7 mm
Days with significant stubble moisture: 73

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

93%

97%

99%

Blackspot risk

Low

Low

Low

Maitland

Last date used for prediction: 25 June 2023
Rainfall to date: 235.3 mm
Days with significant stubble moisture: 104

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Minlaton

Last date used for prediction: 25 June 2023
Rainfall to date: 180.8 mm
Days with significant stubble moisture: 78

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

96%

99%

100%

Blackspot risk

Low

Low

Low

Minnipa PIRSA

Last date used for prediction: 25 June 2023
Rainfall to date: 86.8 mm
Days with significant stubble moisture: 46

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

46%

59%

74%

Blackspot risk

Medium

Medium

Low

Mount Barker SA

Last date used for prediction: 25 June 2023
Rainfall to date: 373.2 mm
Days with significant stubble moisture: 116

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Murray Bridge

Last date used for prediction: 25 June 2023
Rainfall to date: 166.7 mm
Days with significant stubble moisture: 96

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Naracoorte

Last date used for prediction: 25 June 2023
Rainfall to date: 271 mm
Days with significant stubble moisture: 98

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Nuriootpa

Last date used for prediction: 25 June 2023
Rainfall to date: 198.9 mm
Days with significant stubble moisture: 97

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Palmer

Last date used for prediction: 25 June 2023
Rainfall to date: 168.5 mm
Days with significant stubble moisture: 77

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

96%

98%

100%

Blackspot risk

Low

Low

Low

Parilla

Last date used for prediction: 25 June 2023
Rainfall to date: 192 mm
Days with significant stubble moisture: 97

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Port Broughton

Last date used for prediction: 25 June 2023
Rainfall to date: 163.7 mm
Days with significant stubble moisture: 76

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

95%

98%

99%

Blackspot risk

Low

Low

Low

Riverton

Last date used for prediction: 25 June 2023
Rainfall to date: 209.7 mm
Days with significant stubble moisture: 107

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Roseworthy

Last date used for prediction: 25 June 2023
Rainfall to date: 171.1 mm
Days with significant stubble moisture: 65

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

85%

92%

97%

Blackspot risk

Low

Low

Low

Sedan

Last date used for prediction: 25 June 2023
Rainfall to date: 112.2 mm
Days with significant stubble moisture: 67

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

87%

94%

97%

Blackspot risk

Low

Low

Low

Snowtown

Last date used for prediction: 25 June 2023
Rainfall to date: 155.4 mm
Days with significant stubble moisture: 62

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

80%

89%

95%

Blackspot risk

Low

Low

Low

Strathalbyn

Last date used for prediction: 25 June 2023
Rainfall to date: 222.9 mm
Days with significant stubble moisture: 112

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Tepko

Last date used for prediction: 25 June 2023
Rainfall to date: 146.6 mm
Days with significant stubble moisture: 78

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

96%

99%

100%

Blackspot risk

Low

Low

Low

Truro

Last date used for prediction: 25 June 2023
Rainfall to date: 214.4 mm
Days with significant stubble moisture: 107

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Tumby Bay

Last date used for prediction: 25 June 2023
Rainfall to date: 140.3 mm
Days with significant stubble moisture: 72

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

92%

97%

99%

Blackspot risk

Low

Low

Low

Wolseley

Last date used for prediction: 25 June 2023
Rainfall to date: 241.7 mm
Days with significant stubble moisture: 106

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Yeelanna

Last date used for prediction: 25 June 2023
Rainfall to date: 235.7 mm
Days with significant stubble moisture: 90

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

99%

100%

100%

Blackspot risk

Low

Low

Low

Yorketown

Last date used for prediction: 25 June 2023
Rainfall to date: 187.2 mm
Days with significant stubble moisture: 73

Forecast for crops sown on

26 Jun

3 Jul

10 Jul

Spores released

93%

97%

99%

Blackspot risk

Low

Low

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