Corynebacterium insidiosum was transmitted by Ditylenchus dipsaci into alfalfa crown buds resulting in increased incidence of bacterial wilt in a wilt-susceptible variety. Plant nematodes and related soil forms are frequently members of plant disease complexes. They can, according to Steiner (1953), act as initiators, cooperators, synergists, and aggravators of disease and should therefore be considered important components of a complex biotic community. Plant parasitic nematodes provide avenues of entry for plant parasitic micro

ABSTRACT

No abstract

Paratylenchus neoprojectus n. sp. was found with P. projectus in soil around alfalfa collected from Breton, Alberta. The diagnostic characters established for P. neoprojectus were determined by studies of a population reared from a single larva. It has a spear 28 to 31 μ long. Lip region round, in some cases faintly truncate. Excretory pore usually is at the level of the basal esophageal bulb, 72 to 88 μ from the anterior end. Ovary prominently developed. Tail generally conically rounded, in some cases broadly or narrowly rounded.

ABSTRACT