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Antagonistic effect of predacious Arthrobotrys fungi on infective Haemonchus placei larvae

Published online by Cambridge University Press:  05 June 2009

J. V. Araújo ,
M. A. Santos ,
S. Ferraz  and
A. S. Maia
J. V. Araújo
Affiliation:
Departamento de Veterinária, Universidade Federal de Viçosa, 36.570-000, Viçosa, Minas Gerais, Brazil
M. A. Santos
Affiliation:
Departamento de Fitopatologia, Universidade Federal de Viçosa, 36.570-000, Viçosa, Minas Gerais, Brazil
S. Ferraz
Affiliation:
Departamento de Fitopatologia, Universidade Federal de Viçosa, 36.570-000, Viçosa, Minas Gerais, Brazil
A. S. Maia
Affiliation:
Departamento de Fitopatologia, Universidade Federal de Viçosa, 36.570-000, Viçosa, Minas Gerais, Brazil
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Abstract

Laboratory experiments were performed to investigate the ability of isolates from the predacious fungus species Arthrobotrys conoides (one isolate) and A. robusta (four isolates) to trap and kill infective Haemonchus placei larvae. Three groups for each isolate were formed: group 1, fungi and infective larvae; group 2, fungi; group 3, infective larvae. There were statistically significant differences (P<0.05) between the antagonistic effects of three isolates of A. robusta, but there was no such difference between the isolate of A. conoides and isolates of A. robusta. This result indicates that there can be a variation in the predatory capacity of different isolates within a single fungus species. After 20 days of assay, there was greater recuperation of infective H. placei larvae in group 3 compared to group 1.

Keywords

Predacious fungiArthrobotrysbiological controlHaemonchus placeiNematoda
Type
Research Papers
Information
Journal of Helminthology , Volume 67 , Issue 2 , June 1993 , pp. 136 - 138
Copyright
Copyright © Cambridge University Press 1993

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