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Pacific Northwest Plant Disease Management Handbook
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Pea (Pisum sativum)-Wilt and Near-wilt
Cause The fungi, Fusarium oxysporum f. sp. pisi, races 1, 5, and 6, produce wilt symptoms; race 2
produces near-wilt symptoms. Races 5 and 6 are known to be economically important only in western
Washington and southwest British Columbia. Races 1 and 2 reportedly are in all pea-growing regions of
Oregon and Washington.
Symptoms Wilt-plants are yellow and stunted, and leaves tend to curl and wilt, usually in definite areas
within the planting. Often, the vascular system is reddish to yellow-brown, especially at the nodal area
of the stem (stem leaflet area).
Near-wilt-usually occurs in scattered plants in the field and is evident when the plant approaches green
or canning maturity. In severe cases, where rotations are close, disease can be widespread within a
planting.
Cultural control
Practice longer rotations (not shorter than one in 5 years).
Plant resistant varieties.
Race 1-Most garden pea varieties grown today, with the exception of Little Marvel, are
resistant to race 1.
A limited number of canning and freezing varieties are resistant to races 2, 5, and 6. Consult
seed catalogs and/or seed companies for specific varieties and their resistance to these races.
Pscheidt, J.W., and Ocamb, C.M. (Senior Eds.). 2021 Pacific Northwest Plant Disease Management Handbook.
© Oregon State University.
Use pesticides safely!
Wear protective clothing and safety devices as recommended on the label. Bathe or shower after each use.
Read the pesticide label—even if you’ve used the pesticide before. Follow closely the instructions on the label (and any other
directions you have).
Be cautious when you apply pesticides. Know your legal responsibility as a pesticide applicator. You may be liable for injury or
damage resulting from pesticide use.
Trade-name products and services are mentioned as illustrations only. This does not mean that the participating Extension Services endorse
these products and services or that they intend to discriminate against products and services not mentioned.
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- Homeowner packaging commonly available.
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- Acceptable in organic production.
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