Field pea blackspot management guide for Victoria – 15 April 2019

Page last updated: Wednesday, 17 April 2019 - 3:12pm

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 2019 to 14 April 2019 from the nearest weather station.

Key to blackspot severity scores

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

Blackspot risk

5 out of 10 years

3 out of 10 years

1 out of 10 years

Low

2

5

15

Medium

20

25

35

High

25

30

50

Ballarat

Rainfall to date: 38mm     Days with significant stubble moisture: 27

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Benalla

Rainfall to date: 48.1mm     Days with significant stubble moisture: 38

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

3 to 4

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is medium

Blackspot risk

High

Medium

Medium

Bendigo

Rainfall to date: 27.2mm     Days with significant stubble moisture: 19

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Charlton

Rainfall to date: 36.2mm     Days with significant stubble moisture: 21

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Cressy

Rainfall to date: 57.8mm     Days with significant stubble moisture: 32

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is medium

Blackspot risk

High

High

Medium

Edenhope

Rainfall to date: 31.7mm     Days with significant stubble moisture: 28

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Hopetoun

Rainfall to date: 16.2mm     Days with significant stubble moisture: 8

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Horsham

Rainfall to date: 19.5mm     Days with significant stubble moisture: 7

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Nhill

Rainfall to date: 21.8mm     Days with significant stubble moisture: 14

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Swan Hill

Rainfall to date: 14.9mm     Days with significant stubble moisture: 7

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Warranooke (Marnoo)

Rainfall to date: 47.3mm     Days with significant stubble moisture: 13

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Wycheproof

Rainfall to date: 21.5mm     Days with significant stubble moisture: 14

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

5

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is high

Blackspot risk

High

High

High

Yatchaw (Hamilton)

Rainfall to date: 50.3mm     Days with significant stubble moisture: 33

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow

Too early to sow

OK to sow but disease risk is medium

Blackspot risk

High

High

Medium

More Information

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

Agriculture Victoria Research logo

Contact information

Jean Galloway
+61 (0)8 9690 2172

Author

Kawsar Salam

Funding bodies