Field pea blackspot management guide for southern New South Wales - 5 June 2019

Page last updated: Friday, 7 June 2019 - 10:58am

Please note: This content may be out of date and is currently under review.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 the Department of Primary Industries and Regional Development's (DPIRD) Blackspot Manager model using weather data from 1 January 2019 to 2 June 2019 from the nearest weather station.

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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: 226.4mm Days with significant stubble moisture: 76

Forecast for crops sown on	2 June	9 June	16 June
Blackspot severity	1	1	1
Sowing guide (based on agronomic suitability)	Sow	Sow	Sow
Blackspot risk	Low	Low	Low

Forbes

Rainfall to date: 161.2mm Days with significant stubble moisture: 66

Forecast for crops sown on	2 June	9 June	16 June
Blackspot severity	1	1	1
Sowing guide (based on agronomic suitability)	Sow	Getting too late to sow - after 16 June	Too late to sow - after 23 June
Blackspot risk	Low	Low	Low

Griffith

Rainfall to date: 161mm Days with significant stubble moisture: 59

Forecast for crops sown on	2 June	9 June	16 June
Blackspot severity	2	1	1
Sowing guide (based on agronomic suitability)	Sow	Getting too late to sow	Too late to sow
Blackspot risk	Low	Low	Low

Temora

Rainfall to date: 204.2mm Days with significant stubble moisture: 66

Forecast for crops sown on	2 June	9 June	16 June
Blackspot severity	1	1	1
Sowing guide (based on agronomic suitability)	Sow	Getting too late to sow - after 16 June	Too late to sow - after 23 June
Blackspot risk	Low	Low	Low

Wagga Ag Institute

Rainfall to date: 155.2mm Days with significant stubble moisture: 80

Forecast for crops sown on	2 June	9 June	16 June
Blackspot severity	1	1	1
Sowing guide (based on agronomic suitability)	Sow	Sow	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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