On the Occurrence of Heterodera radicicola associated with Heterodera schachtii as a Field Parasite in Britain

Abstract

In August of the present year, specimens of young field-grown parsnips and carrots, showing heavily galled roots, were sent to this Institute by Mr. L. Ogilvie. The galls were found to result from eelworm infection, Heterodera radicicola being present in considerable numbers in the affected tissues.