Effect of field crops on density of Pratylenchus in southeastern Australia; Part 2: P-thornei

The effect of 93 field crop and pasture cultivars on the end-of-season popu lation densities of Pratylenchus thornei in soil was determined in the fiel d in southeastern Australia. Wheat and barley cultivars had different effec ts on the population densities of P. thornei. Most commercial wheat cultiva rs that are grown in southeastern Australia were sucsceptible, while the ba rley cultivars were resistant or moderately resistant. Lentil, field pea, f enugreek, linseed, and medic were found to be resistant to P. thornei, whil e faba bean and canola were moderately resistant and narbon bean, subterran ean clover, and vetch were susceptible. This study will enable growers to s elect rotational crops to reduce the population densities of these nematode s and therefore minimize the yield loss they cause.