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Field experiments on the ability of Arthrobotrys oligospora (Hyphomycetales) to reduce the number of larvae of Cooperia oncophora (Trichostrongylidae) in cow pats and surrounding grass

Published online by Cambridge University Press:  05 June 2009

J. Grønvold
Affiliation:
Royal Veterinary and Agricultural University, Institute of Hygiene and Microbiology, 13 Bülowsvej, DK-1870 Frederiksberg C, Denmark;
J. Wolstrup
Affiliation:
Royal Veterinary and Agricultural University, Department of Microbiology and Microbial Ecology, 21 Rolighedsvej, DK-1958 Frederiksberg C, Denmark;
S. A. Henriksen
Affiliation:
National Veterinary Laboratory, 27 Bülowsvej, DK-1870 Frederiksberg C, Denmark;
P. Nansen
Affiliation:
Royal Veterinary and Agricultural University, Institute of Hygiene and Microbiology, 13 Bülowsvej, DK-1870 Frederiksberg C, Denmark;

Abstract

In field experiments, conducted on parasite-free grass plots in two consecutive summers, artificially prepared cow pats containing Cooperia oncophora eggs were inoculated with the nematode-trapping fungus Arthrobotrys oligospora. Numbers of infective C. oncophora larvae isolated from the pats as well as from the surrounding herbage were subject to an approximately teh-fold reduction as compared with numbers in fungus-free pats and herbage surrounding these. This reduction was undoubtedly a result of entrapment of the parasite larvae within the faecal pats.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 1987

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