Field pea blackspot sowing guide for WA is now available online

Field pea with blackspot
Field pea with blackspot. Photo courtesy of: DPIRD.

DPIRD’s field pea blackspot risk sowing guide for Western Australia is now available online.

Plant pathologist Jean Galloway (DPIRD) says that Blackspot Manager’s forecasts are variable across the field pea producing areas and growers and agronomists are urged to check their location as blackspot risks are high in some locations.

The blackspot risk is low for the Lake King area, particularly for properties that received some rain on the weekend, and sowing of field peas is recommended now for that area.

Blackspot risk is currently medium for the Esperance area (Scaddan and Salmon Gums) and for some locations in the Great Southern region (Kojonup, Kondinin and Newdegate). If some rainfall is received in the next week it should be safe to sow field pea in these areas by mid-May. Growers are advised to check DPIRD’s updated forecast at the beginning of next week before sowing field peas.

Growers at Mount Barker and the southern coastal area are not advised to do early sowing of field peas due to agronomic reasons. The forecast suggests by the time you enter the recommended sowing window for this area your blackspot risk will be low.

The risk of blackspot infection off last year’s stubble for growers in the northern, central and some locations in the great southern (Katanning, Boyup Brook, Pingrup) is still high due to the lack of summer rainfall events. Growers in these areas are advised to delay sowing field pea and when they do sow to observe a 500m separation of this year’s field pea crop from last year’s field pea stubble and where possible to avoid sowing into or near two and three year old field pea stubbles.

Development officer Ian Pritchard (DPIRD) reminds growers that dry sowing of field peas is not recommended. For those areas that are already at low to medium risk of blackspot you will need to wait until more rainfall is received to sow.

For more details on the latest forecast refer to the department's Field pea blackspot management guide for Western Australia - 3 May 2018.

For more information on blackspot refer to the department’s Diagnosing blackspot in field peas and Blackspot in field peas disease forecast 2018.

To subscribe to the free Blackspot Manager SMS service simply text ‘Blackspot’, your name and location to 0475 959 932.

For advisors with growers in multiple locations, a Blackspot Manager email service is available. To subscribe send an email to

For more information contact Jean Galloway, Research Officer, Northam on +61 (0)8 9690 2172, Mark Seymour, Research Officer, Esperance +61 (0)8 9083 1143 or Ian Pritchard, Development Officer, South Perth on +61 (0)8 9368 3515.