Field pea blackspot management guide for Western Australia - 13 June 2022

Page last updated: Tuesday, 14 June 2022 - 10:52am

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.

This prediction is based on DPIRD's Blackspot Manager model using weather data from 1stJanuary 2022 to 12th June 2022 from the nearest weather station.

You may notice weather station changes for one location, this is to ensure that the weather data being used is the most accurate available for the area, and can be influenced by BOM locations. The location that has changed is Lake King which now is Lake Camm.

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.

Missing a location or would like to receive email or sms alerts?

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

The aim is to delay sowing of field pea crops, where agronomically possible, until the majority of blackspot spores (approximately 60%) have been released prior to the crop emergence. This strategy reduces yield losses from blackspot.

Blackspot risk

Spores released (%)

Yield loss for different levels of blackspot risk scenarios (%)

Low

60 – 100

2 - 15

Medium

30 - 59

20 - 35

High

0 - 29

25 - 50

Risk forecast map
Map showing the relative current risk of spores based upon Blackspot Model outputs for various locations in Western Australia, 13th June 2022.

Bencubbin

Last date used for prediction: 12 June 2022
Rainfall to date: 199 mm Days with significant stubble moisture: 56

12 June

19 June

26 June

68% spores released - blackspot risk low

80% spores released - blackspot risk low

89% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Boyup Brook

Last date used for prediction: 12 June 2022
Rainfall to date: 141.1 mm Days with significant stubble moisture: 58

12 June

19 June

26 June

72% spores released - blackspot risk low

83% spores released - blackspot risk low

91% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Cunderdin

Last date used for prediction: 12 June 2022
Rainfall to date: 130.1 mm Days with significant stubble moisture: 47

12 June

19 June

26 June

48% spores released - blackspot risk medium

64% spores released - blackspot risk low

77% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Dalwallinu

Last date used for prediction: 12 June 2022
Rainfall to date: 92.1 mm Days with significant stubble moisture: 48

12 June

19 June

26 June

50% spores released - blackspot risk medium

66% spores released - blackspot risk low

79% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Too late to sow

Darkan

Last date used for prediction: 12 June 2022
Rainfall to date: 148.9 mm Days with significant stubble moisture: 63

12 June

19 June

26 June

80% spores released - blackspot risk low

89% spores released - blackspot risk low

95% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Dowerin

Last date used for prediction: 12 June 2022
Rainfall to date: 105.4 mm Days with significant stubble moisture: 60

12 June

19 June

26 June

75% spores released - blackspot risk low

86% spores released - blackspot risk low

93% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Gairdner

Last date used for prediction: 12 June 2022
Rainfall to date: 217.5 mm Days with significant stubble moisture: 106

12 June

19 June

26 June

100% spores released - blackspot risk low

100% spores released - blackspot risk low

100% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Grass Patch

Last date used for prediction: 12 June 2022
Rainfall to date: 199.6 mm Days with significant stubble moisture: 73

12 June

19 June

26 June

92% spores released - blackspot risk low

97% spores released - blackspot risk low

99% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Jacup

Last date used for prediction: 12 June 2022
Rainfall to date: 292.6 mm Days with significant stubble moisture: 92

12 June

19 June

26 June

100% spores released - blackspot risk low

100% spores released - blackspot risk low

100% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Katanning

Last date used for prediction: 12 June 2022
Rainfall to date: 151.8 mm Days with significant stubble moisture: 59

12 June

19 June

26 June

74% spores released - blackspot risk low

85% spores released - blackspot risk low

92% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Kojonup

Last date used for prediction: 12 June 2022
Rainfall to date: 172.2 mm Days with significant stubble moisture: 60

12 June

19 June

26 June

75% spores released - blackspot risk low

86% spores released - blackspot risk low

93% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Kondinin

Last date used for prediction: 12 June 2022
Rainfall to date: 167.8 mm Days with significant stubble moisture: 45

12 June

19 June

26 June

43% spores released - blackspot risk medium

59% spores released - blackspot risk medium

74% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Kulin

Last date used for prediction: 12 June 2022
Rainfall to date: 167.8 mm Days with significant stubble moisture: 44

12 June

19 June

26 June

41% spores released - blackspot risk medium

57% spores released - blackspot risk medium

72% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Lake Camm

Last date used for prediction: 12 June 2022
Rainfall to date: 172.6 mm Days with significant stubble moisture: 72

12 June

19 June

26 June

91% spores released - blackspot risk low

96% spores released - blackspot risk low

99% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Merredin

Last date used for prediction: 12 June 2022
Rainfall to date: 175.1 mm Days with significant stubble moisture: 65

12 June

19 June

26 June

83% spores released - blackspot risk low

91% spores released - blackspot risk low

96% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Mingenew

Last date used for prediction: 12 June 2022
Rainfall to date: 89.8 mm Days with significant stubble moisture: 44

12 June

19 June

26 June

41% spores released - blackspot risk medium

57% spores released - blackspot risk medium

72% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Moora North West

Last date used for prediction: 12 June 2022
Rainfall to date: 269.2 mm Days with significant stubble moisture: 58

12 June

19 June

26 June

72% spores released - blackspot risk low

83% spores released - blackspot risk low

91% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Mount Howick

Last date used for prediction: 12 June 2022
Rainfall to date: 189 mm Days with significant stubble moisture: 76

12 June

19 June

26 June

94% spores released - blackspot risk low

97% spores released - blackspot risk low

99% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Mount Madden East

Last date used for prediction: 12 June 2022
Rainfall to date: 166.6 mm Days with significant stubble moisture: 63

12 June

19 June

26 June

80% spores released - blackspot risk low

89% spores released - blackspot risk low

95% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Mt Barker

Last date used for prediction: 12 June 2022
Rainfall to date: 209.6 mm Days with significant stubble moisture: 96

12 June

19 June

26 June

100% spores released - blackspot risk low

100% spores released - blackspot risk low

100% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Mullewa

Last date used for prediction: 12 June 2022
Rainfall to date: 131.6 mm Days with significant stubble moisture: 49

12 June

19 June

26 June

53% spores released - blackspot risk medium

66% spores released - blackspot risk low

79% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Too late to sow

Narrogin

Last date used for prediction: 12 June 2022
Rainfall to date: 135 mm Days with significant stubble moisture: 32

12 June

19 June

26 June

15% spores released - blackspot risk high

29% spores released - blackspot risk high

46% spores released - blackspot risk medium

Do not sow

Do not sow

Sow - do not sow dry

Newdegate

Last date used for prediction: 12 June 2022
Rainfall to date: 154 mm Days with significant stubble moisture: 48

12 June

19 June

26 June

50% spores released - blackspot risk medium

66% spores released - blackspot risk low

79% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Northam

Last date used for prediction: 12 June 2022
Rainfall to date: 103.2 mm Days with significant stubble moisture: 50

12 June

19 June

26 June

55% spores released - blackspot risk medium

70% spores released - blackspot risk low

82% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Pingrup

Last date used for prediction: 12 June 2022
Rainfall to date: 157.6 mm Days with significant stubble moisture: 55

12 June

19 June

26 June

66% spores released - blackspot risk low

79% spores released - blackspot risk low

88% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Ravensthorpe

Last date used for prediction: 12 June 2022
Rainfall to date: 259.6 mm Days with significant stubble moisture: 71

12 June

19 June

26 June

90% spores released - blackspot risk low

96% spores released - blackspot risk low

98% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Salmon Gums

Last date used for prediction: 12 June 2022
Rainfall to date: 150.8 mm Days with significant stubble moisture: 64

12 June

19 June

26 June

82% spores released - blackspot risk low

90% spores released - blackspot risk low

96% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Scaddan

Last date used for prediction: 12 June 2022
Rainfall to date: 199.2 mm Days with significant stubble moisture: 82

12 June

19 June

26 June

97% spores released - blackspot risk low

99% spores released - blackspot risk low

100% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Tammin

Last date used for prediction: 12 June 2022
Rainfall to date: 152.6 mm Days with significant stubble moisture: 54

12 June

19 June

26 June

64% spores released - blackspot risk low

77% spores released - blackspot risk low

87% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Toodyay

Last date used for prediction: 12 June 2022
Rainfall to date: 123.6 mm Days with significant stubble moisture: 50

12 June

19 June

26 June

55% spores released - blackspot risk medium

70% spores released - blackspot risk low

82% spores released - blackspot risk low

Sow - do not sow dry

Sow - do not sow dry

Sow - do not sow dry

Contact information

Jean Galloway
+61 (0)8 9690 2172