A Modification of the Gemmell Single Cyst Technique for the Potato Strain of the Eelworm Heterodera schachtii Schmidt

Abstract

THERE is little doubt that the single cyst technique recently described by Gemmell¹ is a considerable advance on methods previously used in work with the potato strain of the eelworm Heterodera schachtii. As it is probable that the method will eventually be widely used, it was thought worth while to describe a simple modification of the method which, it is thought, possesses certain advantages over the original.