Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz (1991) 64, 18-22

L. Rovesti, E.W. Heinzpeter and K.V. Deseö (1991)
Distribution and persistence of Steinernema spp. and Heterorhabditis spp. (Nematodes) under different field conditions
Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 64 (1), 18-22
Abstract: The vertical and horizontal distribution, as well as the persistence of Steinernema glaseri, S. carpocapsae (1192, I 100 and Mexican strains), Heterorhabditis bacteriophora, H. heliothidis and Heterorhabditis sp. were studied in three different soil types under field conditions. The presence of infective juveniles in soil samples taken at various depths was assessed using Galleria mellonella larvae as baits for the nematodes. Results show that all tested nematodes had a similar pattern of vertical distribution. On the other hand, Heterorhabditis spp. were significantly more persistent than Steinernema spp. in all soil types. As for the horizontal dispersal, none of the nematodes were ever found outside the treated plots, indicating that most of the juveniles remained near the point of application.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
non-target effects/fate in environm.
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Steinernema carpocapsae/Xenorhabdus nematophila (entomopathogen)
Heterorhabditis bacteriophora/Photorhabdus (entomopathogen)
Steinernema glaseri/Xenorhabdus poinarii (entomopathogen)
Heterorhabditis heliothidis (entomopathogen)