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

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