Steinernema affine (Nematoda: Steinernematidae), a new record for North America and its distribution relative to other entomopathogenic nematodes in British Columbia

Abstract Randomly selected ecosystems in the coastal Greater Vancouver, Fraser valley and southern Vancouver Island regions, and in the interior Okanagan region of British Columbia, were sampled for the presence of entomopathogenic nematodes (EPN). Of 133 soil samples, 23 contained EPN (18 with stei...

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Bibliographic Details
Published in:Nematology : international journal of fundamental and applied nematological research 2005-01, Vol.7 (4), p.495-501
Main Authors: Mráček, Zdenek, Kindlmann, Pavel, Webster, John M
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biological control
Control
entomopathogenic nematodes
FIELD RELATIONSHIPS
Fundamental and applied biological sciences. Psychology
geographical distribution
habitats
HETERORHABDITIS
Heterorhabditis megidis
Invertebrates
Nemathelminthia. Plathelmintha
new geographic records
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
STEINERNEMA
Steinernema kraussei
SURVEY
surveys
Systematics. Geographical distribution
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Summary:Abstract Randomly selected ecosystems in the coastal Greater Vancouver, Fraser valley and southern Vancouver Island regions, and in the interior Okanagan region of British Columbia, were sampled for the presence of entomopathogenic nematodes (EPN). Of 133 soil samples, 23 contained EPN (18 with steinernematids and five with heterorhabditids). Three identified species and one unidentified species were found. Steinernema affine and S. kraussei occurred in most EPN positive locations in the coastal regions sampled. Steinernema affine was found in open habitats and S. kraussei in all types of tree habitats. Steinernema feltiae was found in only one location, White Rock, in the Greater Vancouver region, close to an ocean beach. Heterorhabditis megidis occurred in only the drier Okanagan valley region of central, southern British Columbia, which has a more extreme climate than the moist, moderate climate of the coastal region. It occurred mostly in agricultural land represented by orchards, vineyards, and secondary woodland. In field baiting and laboratory experiments S. affine appeared to be a more successful parasite than S. kraussei.
ISSN:1388-5545
1568-5411
1388-5545
DOI:10.1163/156854105774384714