Een ziekte in erwten,veroorzaakt door het aaltje hoplolaimus uniformis thorne

Summary In some gardens on light sandy soil in Ede a poor growth and yellowing of the leaves beginning with the lowermost ones was observed in peas together with root rot and reddish discoloration of the vascular bundles. The soil was heavily infected withHoplolaimus uniformis Thorne,Pratylenchus penetrans (Cobb)Sher andAllen,P. minyus Sher andAllen and aTylenchorhynchus species.The disease symptoms described above were reproduced experimentally by growing peas in soil inoculated withHoplolaimus uniformis.The other species mentioned above did not damage peas grown in soil inoculated with numbers five times as high as in the original soil.