In a survey of raspberry plantations in Eastern Scotland in 1977, Pratylenchus penetrans was found on 34 of 52 farms examined. In pot tests with soil from sites infested by P. penetrans raspberry plants grew poorly in untreated soils. Growth was improved by air drying, deep freezing (-20 deg C) or with aldicarb treatments of the soil. In two field trials treatment at planting with aldicarb (6.7 kg/ha) increased the total length of cane per plot at the end of the first year by 25 and 48%. Dazomet at 220 and 340 kg/ha increased the total cane length by 62 and 70%, respectively, compared with the untreated control. At the 2nd site the plots were split, one set receiving nitrogen at 112 kg/ha. Nitrogen did not stimulate growth on control plots but on those treated with aldicarb and dazomet the cane length was increased by 12 and 3%, respectively.