Management
The most effective management technique available to farmers is the use of disease-resistant cultivars. Resistant cultivars have been identified in alfalfa, bean, pea and red clover. Breeding for resistance has been successful in alfalfa and beans, however in beans it has been difficult to establish resistant cultivars that also meet consumer needs. The efficacy of chemical suppression is dependent on environmental factors such as temperature and soil moisture. Before widespread fungicide use was available, control consisted mainly of avoiding fields with high disease risk based on a procedure developed in 1958. Management practices should also include good soil drainage and soil testing to avoid infested fields. Crop rotation can be implemented to slow the rate of build-up of A. euteiches, however because oospores can survive for up to 20 years in the soil, rotation is not an effective means of eradicating the inoculum. Therefore, once high levels of A. euteiches have been identified in a field, growers should abstain from planting susceptible hosts in that field.
Read more about this topic: Aphanomyces Euteiches F.sp. Pisi
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