Microplot studies with Xiphinema diversicaudatum under annual and perennial cropping regimes

Annual and perennial crops were grown in monoculture over three- or four-year experiments. Strawberry, raspberry and ryegrass maintained high population densities of Xiphinema diversicaudatum. Hop maintained relatively low population densities as did all annual crops tested, including winter wheat, winter beans, spring barley, potatoes, sugar beet and cabbage. Differences in nematode population density were not due to differences in soil porosity.