Biocontrol Potential of the Entomogenous Fungi Beauveria bassiana and Metarhizium anisopliae for Tsetse Flies ( Glossina spp.) at Developmental Sites

Spores of two entomogenous fungi, Beauveria bassiana and Metarhizium anisopliae , were mixed with sterile sand at two different concentrations (1.0 and 0.5 g/liter) and larvae of tsetse flies Glossina morsitans morsitans allowed to pupate in it, simulating field larviposition sites. One gram weight...

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Bibliographic Details
Published in:Journal of invertebrate pathology 1995-11, Vol.66 (3), p.237-241
Main Authors: Kaaya, Godwin P., Munyinyi, David M.
Format: Article
Language:English
Subjects:
Adoryphorus couloni
Animals
ARENA
AUXILIAIRE DE LUTTE BIOLOGIQUE
BEAUVERIA BASSIANA
biological control
CONTROL BIOLOGICO
Diptera
ESPORAS
fungi
Glossina
GLOSSINA MORSITANS
Glossina morsitans morsitans
Glossinidae
HABITAT
Larva
LARVAS
LARVE
LUTTE BIOLOGIQUE
METARHIZIUM ANISOPLIAE
Mitosporic Fungi
MORTALIDAD
MORTALITE
Mycopesticides
ORGANISMOS PARA CONTROL BIOLOGICO
Pest Control, Biological
Pupa
PUPAS
PUPE
SABLE
SIMULACION
SIMULATION
SPORE
tsetse
Tsetse Flies - microbiology
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Description
Summary:Spores of two entomogenous fungi, Beauveria bassiana and Metarhizium anisopliae , were mixed with sterile sand at two different concentrations (1.0 and 0.5 g/liter) and larvae of tsetse flies Glossina morsitans morsitans allowed to pupate in it, simulating field larviposition sites. One gram weight of B. bassiana-sand mixture was estimated to contain 1.4 × 10 6 spores/g and that of M. anisopliae-sand mixture 2.3 × 10 6 spores/g. Adult tsetse emerging from pupae in sand-spore mixtures suffered heavy mortalities 2-10 days postemergence. The highest mortality recorded at 1.0 g/liter was 97% for B. bassiana and 80% for M. anisopliae. Lower spore concentrations produced lower mortalities. Possibilities of biocontrol of tsetse in the field using mycopesticides at breeding sites are discussed.
ISSN:0022-2011
1096-0805
DOI:10.1006/jipa.1995.1095