Influence of Concomitant Pratylenchus brachyurus and Meloidogyne spp. on Root Penetration and Population Dynamics
Gay, C.M.; Bird, G.W.
Journal of Nematology 5(3): 212-217
1973
ISSN/ISBN: 0022-300X PMID: 19319334 Document Number: 64183
Populations of Pratylenchus brachyurus on cotton increased significantly in the presence of either Meloidogyne incognita or M. arenaria. This occurred with either simultaneous inoculation or earlier invasion by M. incognita. P. brachyurus penetrated cotton roots previously invaded by, or simultaneously inoculated with, M. incognita as well as, or better than, in its absence but earlier invasion by M. incognita suppressed P. brachyurus reproduction on tomato and had no effect on lucerne and tobacco. Populations of M. incognita on cotton were generally inhibited by the presence of P. brachyurus. Simultaneous inoculation with, or previous invasion by, P. brachyurus also inhibited root penetration by M. incognita. These findings emphasize the importancce of host susceptibility in the study of concomitant nematode populations. [AS].