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Naturally occurring entomopathogenic nematodes in the province of West-Flanders, Belgium

Published online by Cambridge University Press:  05 June 2009

J.S. Miduturi
Affiliation:
CLO-Rijksstation voor Nematologie en Entomologie, Van Gansberghelaan 96, B-9820 Merelbeke, Belgium
M. Moens
Affiliation:
CLO-Rijksstation voor Nematologie en Entomologie, Van Gansberghelaan 96, B-9820 Merelbeke, Belgium
W.M. Hominick
Affiliation:
International Institute of Parasitology, 395A Hatfield Road, St Albans, Herts, AL4 0XU, UK
B.R. Briscoe
Affiliation:
International Institute of Parasitology, 395A Hatfield Road, St Albans, Herts, AL4 0XU, UK
A.P. Reid
Affiliation:
International Institute of Parasitology, 395A Hatfield Road, St Albans, Herts, AL4 0XU, UK

Abstract

The presence of naturally occurring entomopathogenic nematodes (epns) was surveyed in the West-Flanders province in the north-west of Belgium. In 21 sites of different agronomical situations, 130 soil samples were taken. Using the Galleria larva bait technique, 16 soil samples were found positive for epns. Fifteen samples were found to contain Steinernema spp. (nine S.feltiae, five S. affinis, one Steinemema species B3). The remaining positive sample contained Heterorhabditis sp. (North West European strain). The morphometric characters of the isolates were highly variable and did not correspond precisely to the original descriptions; however, biochemical characterization confirmed their identity. The epns were isolated from 50%, 18.8% or 12.3% of the samples taken in sand dunes, grassland or woodlands, respectively. S. feltiae and S. affinis were isolated in these three habitats; Heterorhabditis sp. was found in a grassland habitat. Steinernema feltiae was prevalent in loamy sand soils with a wide range of organic matter content; S. affinis, Heterorhabditis sp. and Steinernema species B3 were isolated in sandy loam soils. All the positive sample sites were in the pH range of 4.0–8.1. This is the first report of naturally occurring entomopathogenic nematodes in Belgium.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 1996

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