Parasitism and Pathogenicity of Xiphinema Diversicaudatum, an Ectoparasitic Nematode

Host status of some plants for Xiphinema diversicaudatum (Micol.) and their susceptibility to viruses transmitted by this species

“…In circumstances where X . diversicaudatum is a pest of glasshouse roses (Schindler, 1957;Brown, 1965) it might be better to grow chrysanthemum rather than tomato, if it were commercially feasible to supplement nematicidal treatment with an alternative crop.…”

“…Prunus spinosa, Fraxinus excelsior and Quercus robur maintained populations which were greater than the controls ( Table 2). The low numbers of nematodes on Rosa canina are considered anomalous because there was practically no new root growth on this plant for about 10 wk after transplanting whereas there is much evidence to indicate its suitability as a host (Schindler, 1957;Brown, 1965). On Rubus fruticosus, which grew vigorously, numbers decreased below those of the fallow controls but not significantly so; thus within the same plant genus R. idaeus and R. fruticosus were good and poor hosts respectively.…”

Pathogenesis of Nematode-Infected Plants

“…Fisher & Raski (31) observed some galling of grape roots with X. index and with X. diversicaudatum on rose, such as that reported by Schindler (80), but the seedling techniques failed to duplicate the development of extensive enlarged galls in plants infected by these nematodes in pot and field experiments.…”

AN OUTBREAK OF ARABIS MOSAIC VIRUS AND XIPHINEMA DIVERSICAV DATUM (MICOLETZKY) IN SCOTLAND

“…Numbers of Xiphinema diversicaudatum per 200 g in soil samples from Liberton Gardens Most X. diversicaudatum were found in samples taken from the root zone of Myrobalan plum in the south hedge (see Table). Some of the young roots exhibited nodular galls similar to those associated with X. diversicaudatum feeding on roses (Schindler, 1957;Brown, 1965) and other woody plants (Harrison and Winslow, 1961); elder roots growing in the same zone appeared to be little affected and at most exhibited slight swelling. Fewer X. diversicaudatum were found in the rows of raspberries close to the hedge than in the hedge itself, and none was found in any other samples from the raspberry plots.…”