Field pea blackspot management guide for southern New South Wales - 13 May 2019

Page last updated: Friday, 17 May 2019 - 9:48am

Please note: This content may be out of date and is currently under review.

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 1st January 2019 to 12th May 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

Cootamundra

Rainfall to date: 208.1mm     Days with significant stubble moisture: 63

Forecast for crops sown on

12 May

19 May

26 May

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too early to sow - before the 19th May

Marginally too early to sow - 20th May - 26th May

OK to sow

Blackspot risk

Low

Low

Low

Griffith

Rainfall to date: 151mm     Days with significant stubble moisture: 50

Forecast for crops sown on

12 May

19 May

26 May

Blackspot severity

3 to 4

2

1

Sowing guide (based on agronomic suitability)

Getting too late to sow - after 9th June, but blackspot risk is medium

Getting too late to sow - after 9th June

Getting too late to sow - after 9th June

Blackspot risk

Medium

Low

Low

Temora

Rainfall to date: 194.5mm     Days with significant stubble moisture: 60

Forecast for crops sown on

12 May

19 May

26 May

Blackspot severity

2

1

1

Sowing guide (based on agronomic suitability)

Marginally too early to sow - 13th May -  19th May

OK to sow

OK to sow

Blackspot risk

Low

Low

Low

Wagga Ag Institute

Rainfall to date: 133.8mm     Days with significant stubble moisture: 70

Forecast for crops sown on

12 May

19 May

26 May

Blackspot severity

1

1

1

Sowing guide (based on agronomic suitability)

Too early to sow - before the 19th May

Marginally too early to sow - 20th May - 26th May

OK to sow

Blackspot risk

Low

Low

Low

More information

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

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Contact information

Jean Galloway
+61 (0)8 9690 2172

Field pea blackspot management guide for southern New South Wales - 13 May 2019

Author

Kawsar Salam

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