Field pea blackspot management guide for South Australia - 16 April 2018

Page last updated: Friday, 20 April 2018 - 10:46am

Please note: This content may be out of date and is currently under review.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. This prediction is based on DPIRD's Blackspot Manager model using weather data from 1 January 2018 to 16 April 2018 from the nearest weather station.

Key to blackspot severity scores

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

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

Balaklava

Rainfall to date: 25.2mm. Days with significant stubble moisture: 15

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Blyth (Hart)

Rainfall to date: 30.1mm. Days with significant stubble moisture: 22

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Bordertown

Rainfall to date: 32mm. Days with significant stubble moisture: 21

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Bute

Rainfall to date: 34.5mm. Days with significant stubble moisture: 26

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 3-4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High Medium

Clare

Rainfall to date: 46mm. Days with significant stubble moisture: 35

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 3-4 3-4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High Medium Medium

Crystal Brook

Rainfall to date: 25mm. Days with significant stubble moisture: 14

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Eudunda

Rainfall to date: 49.6mm. Days with significant stubble moisture: 27

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 3 to 4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High Medium

Keith

Rainfall to date: 27.6mm. Days with significant stubble moisture: 13

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Kent Town

Rainfall to date: 31.6mm. Days with significant stubble moisture: 14

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Kimba

Rainfall to date: 26.6mm. Days with significant stubble moisture: 8

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Kingsford

Rainfall to date: 43.2mm. Days with significant stubble moisture: 36

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 3-4 3-4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High Medium Medium

Kyancutta

Rainfall to date: 29.6mm. Days with significant stubble moisture: 15

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Lameroo

Rainfall to date: 13.3mm. Days with significant stubble moisture: 7

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Lock

Rainfall to date: 34mm. Days with significant stubble moisture: 21

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Maitland

Rainfall to date: 37.2mm. Days with significant stubble moisture: 26

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 3-4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High Medium

Mannum

Rainfall to date: 23mm. Days with significant stubble moisture: 10

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Minlaton

Rainfall to date: 24.9mm. Days with significant stubble moisture: 15

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Minnipa

Rainfall to date: 25.6mm. Days with significant stubble moisture: 17

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Marginally early
Blackspot risk High High High

Mount Barker

Rainfall to date: 84.3mm. Days with significant stubble moisture: 45

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 3-4 3-4 2
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk Medium Medium Low

Murray Bridge

Rainfall to date: 25.3mm. Days with significant stubble moisture: 15

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Mypolonga

Rainfall to date: 21.4mm. Days with significant stubble moisture: 9

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Naracoorte

Rainfall to date: 41.8mm. Days with significant stubble moisture: 36

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 3-4 3-4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High Medium Medium

Nuriootpa

Rainfall to date: 44.6mm. Days with significant stubble moisture: 25

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Palmer

Rainfall to date: 36mm. Days with significant stubble moisture: 22

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Port Broughton

Rainfall to date: 31.1mm. Days with significant stubble moisture: 22

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Riverton

Rainfall to date: 46.4mm. Days with significant stubble moisture: 28

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 3-4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High Medium

Sedan

Rainfall to date: 25.2mm. Days with significant stubble moisture: 12

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Snowtown

Rainfall to date: 42.4mm. Days with significant stubble moisture: 30

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 3 to 4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High Medium

Strathalbyn

Rainfall to date: 42.4mm. Days with significant stubble moisture: 26

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 3-4
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High Medium

Tumby Bay

Rainfall to date: 25.4mm. Days with significant stubble moisture: 10

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Yeelanna

Rainfall to date: 37mm. Days with significant stubble moisture: 18

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

Yorketown

Rainfall to date: 25.1mm. Days with significant stubble moisture: 8

Weekly forecast 15 Apr 22 Apr 29 Apr
Blackspot severity 5 5 5
Sowing guide (based on agronomic suitability) Too early to sow Too early to sow Too early to sow
Blackspot risk High High High

More Information

For more information contact Dr Jenny Davidson at SARDI on ph +61 (0)8 8303 9389.

SARDISARDI

Author

Kawsar Salam

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