Field pea blackspot management guide for New South Wales - 23 June 2020

Page last updated: Tuesday, 23 June 2020 - 2:02pm

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. 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 1st January 2020 to 22nd June 2020 from the nearest weather station.

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.

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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

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

Cootamundra

Rainfall to date: 351.7 mm.  Days with significant stubble moisture: 91

Forecast for crops sown on

22 June

29 June

6 July

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Getting too late to sow - after 30th June

Getting too late to sow - after 30th June

Too late to sow - after 14th July

Blackspot risk

Low

Low

Low

Forbes

Rainfall to date: 440.8 mm.  Days with significant stubble moisture: 78

Forecast for crops sown on

22 June

29 June

6 July

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too late to sow - after 23rd June

Too late to sow

Too late to sow

Blackspot risk

Low

Low

Low

Griffith

Rainfall to date: 269.8 mm.  Days with significant stubble moisture: 63

Forecast for crops sown on

22 June

29 June

6 July

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too late to sow - after 16th June

Too late to sow

Too late to sow

Blackspot risk

Low

Low

Low

Temora

Rainfall to date: 372.5 mm.  Days with significant stubble moisture: 88

Forecast for crops sown on

22 June

29 June

6 July

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too late to sow - after 23rd  June

Too late to sow

Too late to sow

Blackspot risk

Low

Low

Low

Wagga Ag Institute

Rainfall to date: 289.1 mm.  Days with significant stubble moisture: 82

Forecast for crops sown on

22 June

29 June

6 July

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Getting too late to sow - after 30th June

Getting too late to sow - after 30th June

Too late to sow - after 14th July

Blackspot risk

Low

Low

Low

More information

For more information contact Dr Kurt Lindbeck at NSW DPI on ph +61 (0)2 6938 1608.

NSW DPI logo

Contact information

Jean Galloway
+61 (0)8 9690 2172

Author

Kawsar Salam

Funding bodies