J. For. Sci., 2006, 52(3):136-140 | DOI: 10.17221/4495-JFS

Infection of wintering pupae of horse-chestnut leafminer Cameraria ohridella Deschka et Dimić. by Verticillium lecanii(Zimmerman)Viégas

T. Samek1, D. Novotný2, L. Jankovský3
1 Central Institute for Supervising and Testing in Agriculture, Brno, Czech Republic
2 Research Institute of Crop Production, Praha-Ruzyně, Czech Republic
3 Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic

The population dynamics of the horse-chestnut leafminer Cameraria ohridella Deschka et Dimić. was investigated in 1997-2000. The mortality of wintering pupae and the rate of fungal infections were also examined. The mortality of the horse-chestnut leafminer was nearly 40% at the end of spring. The spectrum of fungi on examined dead pupae was as follows: Verticillium lecanii (Zimmerman) Viégas, Cladosporium herbarum (Persoon: Fries) Link, Cladosporium cladosporioides (Fresen.) de Vries, Alternaria alternata (Fr.) Keissler, Acremonium strictum W. Gams, Rhizopus stolonifer (Ehrenberg: Fries) Lind., Arthrinium phaeospermum (Corda) Ellis and Acremonium sp. 1. Verticillium lecanii was the only identified fungus with an entomophagous status. The fungus is, however, a well documented entomopathogen of Homoptera, particularly of aphids, scale insects and whiteflies in tropical and subtropical regions.

Keywords: Cameraria ohridella; horse-chestnut leafminer; horse-chestnut; entomophagous fungi; Verticillium lecanii; mortality; population dynamics

Published: March 31, 2006  Show citation

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Samek T, Novotný D, Jankovský L. Infection of wintering pupae of horse-chestnut leafminer Cameraria ohridella Deschka et Dimić. by Verticillium lecanii(Zimmerman)Viégas. J. For. Sci. 2006;52(3):136-140. doi: 10.17221/4495-JFS.
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