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Volunteer Field Peas

Pisum sativum
Field peas are legumes grown in most cropping parts of southern Australia, mostly for grain but also for green manure, forage or hay. They prefer sandy loams or heavier soils with a pH above 5. Most volunteer field peas will germinate the following autumn or winter after being harvested.
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Description

Most common varieties grown are ‘dun types’ which have purple/faintly pink flowers, yellow cotyledons and green, brown or green/brown seed coats. ‘White types’ are also grown and have white flowers, yellow cotyledons and a white-creamy seed coat. The commonly grown variety Kaspa is a ‘dun type’, semi-leafless/semi-dwarf variety which has modified tendrils which improve its standability compared to trailing field peas which are less erect and are more likely to lodge.

Control

In addition to reducing yield potential, if 10-20 plants/m2 are present in cereal crops, peas can also cause contamination downgrades in other grain crops. 

Compared to other pulses, field peas are the least susceptible to Group B herbicides however they are still vulnerable to them and Group I herbicides. Therefore, care should be taken if these herbicides are used to remove volunteer peas and then pulses are planned to be sown in a short rotation. This can be particularly problematic if there has been insufficient rainfall to reduce herbicide residues.

 

Precept® is registered for the control of 2-5 leaf field peas in wheat, barley, oats, cereal rye and triticale.  Velocity® is registered for the control of 2-8 leaf volunteer field peas in wheat, barley, cereal rye and triticale. When used in a tank mix with LVE MCPA and Lontrel®, Eclipse® is registered for the control of up to 6 node volunteer peas in wheat, barley, oats, cereal rye and triticale.

Roundup Ready® with Plantshield®and Roundup Ready PL are both registered for the control of up to 8 leaf volunteer peas in Roundup Ready and Truflex® canola crops.

Hussar® OD is registered for the suppression of 3-4 node volunteer peas in wheat. As a standalone option, Eclipse® is also registered for the suppression of up to 7 node volunteer peas in wheat, barley, oats, rye and triticale.

Related Products

Bayer Precept® Selective Herbicide
Velocity
Bayer Hussar® OD Selective Herbicide
Roundup Ready PL Herbicide with Plantshield technology
Roundup Ready with plantshield


References


AgriFutures Australia (2017), ‘Field pea’ Rural Industries Research & Development Corporation - RIRDC, https://www.agrifutures.com.au/farm-diversity/field-peas/

GRDC (2017), ‘GrowNote: Southern Field pea’, https://grdc.com.au/GN-Field-Pea-South

Herbiguide (2014), ‘Pea’, Herbiguide, http://www.herbiguide.com.au/Descriptions/hg_Pea.htm