Research article - Peer-reviewed, 2002
Environmental impact on soil nematodes following the use of the ivermectin sustained-release bolus or the nematophagous fungus Duddingtonia flagrans to control nematode parasites of cattle in Sweden
Yeates, Gregor W.; Dimander, Sten-Olof; Waller, Peter J.; Höglund, JohanAbstract
Management of nematode parasites of grazing livestock is essential, but there is concern about the potential environmental risk from agents used in their control. In this experiment, parasites in young cattle were controlled, using ivermectin boluses or the predacious fungus Duddingtonia flagrans, over 3 years. Treatment differences were sought among the soil nematodes recovered from soil samples collected from the paddocks on which treated animals grazed, and compared with similar samples taken from an untreated control paddock. Analysis of the soil nematode fauna on 21 occasions failed to demonstrate any impact of parasite management on soil nematodes. In 0-22 mm soil total nematode abundance averaged 524 000 m(-2), with 18 nominal taxa and. H' diversity 2.41. There were both underlying paddock and year-to-year, climate-related, differences. The results of this trial not only confirm the lack of any adverse environmental impact of D. flagrans, a promising biological control agent, on soil nematodes, but also fail to show any impact arising from the use of ivermectin boluses.Keywords
bacterial feeding; diversity; Duddingtonia flagrans; environmental impact; Helicotylenchus; ivermectin; nutrient cycling; pasture; TylenchorhynchusPublished in
Acta Agriculturae Scandinavica, Section A - Animal Science2002, volume: 52, number: 4, pages: 233-242
Publisher: TAYLOR & FRANCIS AS
Authors' information
Yeates, Gregor W.
Landcare Research
Dimander, Sten-Olof
National Veterinary Institute (SVA)
Dimander, Sten-Olof
SLU - Swedish University of Agricultural Sciences
Waller, Peter J.
National Veterinary Institute (SVA)
Waller, Peter J.
SLU - Swedish University of Agricultural Sciences
National Veterinary Institute (SVA)
Swedish University of Agricultural Sciences, Department of Veterinary Microbiology
UKÄ Subject classification
Pathobiology
Publication Identifiers
DOI: https://doi.org/10.1080/090647002762381113
URI (permanent link to this page)
https://res.slu.se/id/publ/40888