Survey of plant-parasitic and entomopathogenic nematodes in vineyards of Quebec

A survey of plant-parasitic and entomopathogenic nematodes associated with vineyards was undertaken in the Estrie and Monteregie regions, the two majo r grapevine-producing areas in Quebec. Soil samples from 13 sampled vineyar ds were analyzed for the occurrence of plant-parasitic and entomopathogenic nematodes. Six genera of plant-parasitic nematodes were observed. The most commonly encountered plant-parasitic nematode genera were Pratylenchus and Paratylenchus, both occurring in 85% of sampled vineyards. No Xiphinema sp . were observed in surveyed vineyards. Entomopathogenic nematodes were reco vered from 85% of the samples. Heterorhabditid and steinernematid nematodes were isolated from one and 11 vineyards respectively. Steinernematid isola tes were identified as Steinernema carpocapsae.