Field pea blackspot management guide for Victoria - 30 May 2022

Page last updated: Tuesday, 31 May 2022 - 12:57pm

Field Pea Blackspot Management Guide is a location and season specific weekly forecast. It accounts for varietal resistance and chemical options, agronomic yield potentials, agronomic constraints (frost and terminal drought), risks of spore showers, disease severity, and disease related yield loss. It then weighs agronomic yield loss and disease yield loss and suggests a window of sowing dates.

This prediction is based on DPIRD's Blackspot Manager model using weather data from 1st January 2022 to 29th 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 location that has changed is Quambatook which is now Quambatook South.

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 or implement a disease management plan based on the blackspot risk of field pea crops. The Blackspot risk will be low once the majority of blackspot spores (approximately 60%) have been released prior to the crop emergence and sowing after this date will reduce yield losses from blackspot. There are many other reasons that affect grain yield and sowing prior to a low blackspot risk can often be advantageous, therefore, it is recommended discussing individual situations with an agronomist.

Blackspot risk

Spores released (%)

Yield loss range (%)

Low

60 – 100

2 - 15

Medium

30 - 59

20 - 35

High

0 - 29

25 - 50

Risk forecast map

Victoria risk forecast map
Map showing the relative current risk of spores based upon Blackspot Model outputs for various locations in Victoria for 30th May 2022.

Avalon Airport

Last date used for prediction: 28 May 2022
Rainfall to date: 222.6 mm Days with significant stubble moisture: 71

Forecast for crops sown on

28 May

4 June

11 June

Spores released

90%

95%

98%

Blackspot risk

Low

Low

Low

Ballarat

Last date used for prediction: 28 May 2022
Rainfall to date: 186.5 mm Days with significant stubble moisture: 66

Forecast for crops sown on

28 May

4 June

11 June

Spores released

85%

92%

97%

Blackspot risk

Low

Low

Low

Bendigo

Last date used for prediction: 28 May 2022
Rainfall to date: 233.6 mm Days with significant stubble moisture: 77

Forecast for crops sown on

28 May

4 June

11 June

Spores released

95%

98%

99%

Blackspot risk

Low

Low

Low

Beulah West

Last date used for prediction: 28 May 2022
Rainfall to date: 172 mm Days with significant stubble moisture: 59

Forecast for crops sown on

28 May

4 June

11 June

Spores released

74%

85%

92%

Blackspot risk

Low

Low

Low

Buln Buln

Last date used for prediction: 28 May 2022
Rainfall to date: 242.1 mm Days with significant stubble moisture: 103

Forecast for crops sown on

28 May

4 June

11 June

Spores released

100%

100%

100%

Blackspot risk

Low

Low

Low

Charlton

Last date used for prediction: 28 May 2022
Rainfall to date: 156.8 mm Days with significant stubble moisture: 62

Forecast for crops sown on

28 May

4 June

11 June

Spores released

79%

88%

94%

Blackspot risk

Low

Low

Low

Cressy

Last date used for prediction: 28 May 2022
Rainfall to date: 233.7 mm Days with significant stubble moisture: 73

Forecast for crops sown on

28 May

4 June

11 June

Spores released

92%

97%

99%

Blackspot risk

Low

Low

Low

Derrinallum

Last date used for prediction: 28 May 2022
Rainfall to date: 223.8 mm Days with significant stubble moisture: 76

Forecast for crops sown on

28 May

4 June

11 June

Spores released

94%

98%

99%

Blackspot risk

Low

Low

Low

Echuca Aerodrome

Last date used for prediction: 28 May 2022
Rainfall to date: 163.4 mm Days with significant stubble moisture: 63

Forecast for crops sown on

28 May

4 June

11 June

Spores released

80%

89%

95%

Blackspot risk

Low

Low

Low

Edenhope

Last date used for prediction: 28 May 2022
Rainfall to date: 200.1 mm Days with significant stubble moisture: 74

Forecast for crops sown on

28 May

4 June

11 June

Spores released

93%

97%

99%

Blackspot risk

Low

Low

Low

Horsham

Last date used for prediction: 28 May 2022
Rainfall to date: 163.6 mm Days with significant stubble moisture: 51

Forecast for crops sown on

28 May

4 June

11 June

Spores released

57%

72%

83%

Blackspot risk

Medium

Low

Low

Kerang

Last date used for prediction: 28 May 2022
Rainfall to date: 206.8 mm Days with significant stubble moisture: 69

Forecast for crops sown on

28 May

4 June

11 June

Spores released

88%

94%

98%

Blackspot risk

Low

Low

Low

Mildura Airport

Last date used for prediction: 28 May 2022
Rainfall to date: 188.7 mm Days with significant stubble moisture: 44

Forecast for crops sown on

28 May

4 June

11 June

Spores released

41%

57%

72%

Blackspot risk

Medium

Medium

Low

Molyullah

Last date used for prediction: 28 May 2022
Rainfall to date: 336.1 mm Days with significant stubble moisture: 78

Forecast for crops sown on

28 May

4 June

11 June

Spores released

96%

98%

100%

Blackspot risk

Low

Low

Low

Nhill

Last date used for prediction: 28 May 2022
Rainfall to date: 93 mm Days with significant stubble moisture: 49

Forecast for crops sown on

28 May

4 June

11 June

Spores released

53%

68%

80%

Blackspot risk

Medium

Low

Low

Quambatook South

Last date used for prediction: 28 May 2022
Rainfall to date: 152.5 mm Days with significant stubble moisture: 53

Forecast for crops sown on

28 May

4 June

11 June

Spores released

62%

75%

86%

Blackspot risk

Low

Low

Low

Swan Hill Aerodrome

Last date used for prediction: 28 May 2022
Rainfall to date: 182.6 mm Days with significant stubble moisture: 66

Forecast for crops sown on

28 May

4 June

11 June

Spores released

85%

92%

97%

Blackspot risk

Low

Low

Low

Warracknabeal Ailsa

Last date used for prediction: 28 May 2022
Rainfall to date: 200.7 mm Days with significant stubble moisture: 61

Forecast for crops sown on

28 May

4 June

11 June

Spores released

77%

87%

94%

Blackspot risk

Low

Low

Low

Warranooke

Last date used for prediction: 28 May 2022
Rainfall to date: 180.2 mm Days with significant stubble moisture: 58

Forecast for crops sown on

28 May

4 June

11 June

Spores released

72%

83%

91%

Blackspot risk

Low

Low

Low

Wycheproof

Last date used for prediction: 28 May 2022
Rainfall to date: 158.4 mm Days with significant stubble moisture: 51

Forecast for crops sown on

28 May

4 June

11 June

Spores released

57%

72%

83%

Blackspot risk

Medium

Low

Low

Yatchaw

Last date used for prediction: 28 May 2022
Rainfall to date: 166.1 mm Days with significant stubble moisture: 78

Forecast for crops sown on

28 May

4 June

11 June

Spores released

96%

98%

100%

Blackspot risk

Low

Low

Low

More Information

More information

For more information contact Dr Joshua Fanning at Agriculture Victoria on +61 419 272 075.

Contact information

Jean Galloway
+61 (0)8 9690 2172