Field pea blackspot management guide for Victoria - 21 April 2020

Page last updated: Wednesday, 22 April 2020 - 3:45pm

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 spores 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. Field pea crops should be sown so that the majority of blackspot spores (approximately 60%) have been released prior to the crop emergence.

This prediction is based on DPIRD’s Blackspot Manager model using weather data from 1 January 2020 to 20 April 2020 from the nearest weather station.

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

Percentage yield loss (in years) for different levels of blackspot risk scenarios

Blackspot risk

Blackspot severity

5 out of 10 years

3 out of 10 years

1 out of 10 years

Low

1

0

0

0

Low

2

2

5

15

Medium

3-4

20

25

35

High

5

25

30

50

Ballarat

Rainfall to date: 216 mm  Days with significant stubble moisture: 70

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Too early to sow

Blackspot risk

Low

Low

Low

Bendigo

Rainfall to date: 193.8 mm  Days with significant stubble moisture: 60

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

2

1

1

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Too early to sow

Blackspot risk

Low

Low

Low

Beulah West (Hopetoun)

Rainfall to date: 115.5 mm  Days with significant stubble moisture: 44

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

3 to 4

3 to 4

2

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

Medium

Medium

Low

Charlton

Rainfall to date: 108.7 mm  Days with significant stubble moisture: 36

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

5

5

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

High

High

Medium

Cressy

Rainfall to date: 184.5 mm.  Days with significant stubble moisture: 64

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Too early to sow

Blackspot risk

Low

Low

Low

Derrinallum (Leslie Manor)

Rainfall to date: 189 mm.  Days with significant stubble moisture: 63

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Too early to sow

Blackspot risk

Low

Low

Low

Edenhope

Rainfall to date: 95.9 mm.  Days with significant stubble moisture: 44

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

3 to 4

3 to 4

2

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Too early to sow

Blackspot risk

Medium

Medium

Low

Horsham

Rainfall to date: 132 mm.  Days with significant stubble moisture: 64

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

Low

Low

Low

Molyullah (Benalla)

Rainfall to date: 273.5 mm.  Days with significant stubble moisture: 70

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

Low

Low

Low

Nhill

Rainfall to date: 120.2 mm.  Days with significant stubble moisture: 35

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

5

5

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

High

High

Medium

Quambatook

Rainfall to date: 116.5 mm.  Days with significant stubble moisture: 45

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

3 to 4

3 to 4

2

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

Medium

Medium

Low

Swan Hill Aerodrome

Rainfall to date: 87.4 mm.  Days with significant stubble moisture: 40

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

3 to 4

3 to 4

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

Medium

Medium

Medium

Warracknabeal

Rainfall to date: 89.5 mm.  Days with significant stubble moisture: 42

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

3 to 4

3 to 4

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

Medium

Medium

Medium

Warranooke (Marnoo)

Rainfall to date: 112.8 mm.  Days with significant stubble moisture: 43

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

3 to 4

3 to 4

2

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

Medium

Medium

Low

Wycheproof

Rainfall to date: 132.7 mm.  Days with significant stubble moisture: 41

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

3 to 4

3 to 4

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Ok to sow

Blackspot risk

Medium

Medium

Medium

Yatchaw (Hamilton)

Rainfall to date: 139.8 mm.  Days with significant stubble moisture: 60

Forecast for crops sown on

20 Apr

27 Apr

4 May

Blackspot severity

2

1

1

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

Too early to sow

Blackspot risk

Low

Low

Low

More information

For more information contact Dr Joshua Fanning at at Agriculture Victoria Research on ph +61 (0)3 4344 3335.

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Contact information

Jean Galloway
+61 (0)8 9690 2172