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Toxicity of some pesticides to Eretmocerus debachi (Hymenoptera: Aphelinidae), an important parasitoid of Parabemisia myricae (Homoptera: Aleyrodidae)

Published online by Cambridge University Press:  10 July 2009

Nedim Uygun ,
Cetin Sengonca ,
Mehmet R. Ulusoy  and
Ulrich Kersting
Nedim Uygun
Affiliation:
Department of Plant Protection, University of Cukurova, Turkey
Cetin Sengonca*
Affiliation:
Institute of Phytopathology, University of Bonn, Federal Republic of Germany
Mehmet R. Ulusoy
Affiliation:
Department of Plant Protection, University of Cukurova, Turkey
Ulrich Kersting
Affiliation:
Institute of Phytopathology, University of Bonn, Federal Republic of Germany
*
C. Sengonca, Institute of Phytopathology, University of Bonn, Nuβallee 9, D-53115 Bonn, Federal Republic of Germany.
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Abstract

The effects of nine pesticides commonly used in citrus orchards were tested on adults, larvae and pupae of the parasitoid Eretmocerus debachi Rose & Rosen in the laboratory. All pesticides caused immediate mortality to adult parasitoid females and significant losses in efficiency, if applied to larvae of E. debachi in its host Parabemisia myricae (Kuwana). Only the fungicide captan and the insecticide Mercathion (malathion) were slightly harmful and harmless to the parasitoid larva. Gramoxone (paraquat), Dursban 4 (chlopyrifos-ethyl), Mercathion and Supracide (methidathion) were harmful to E. debachi pupae, while five other pesticides were only moderately harmful or harmless.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 84 , Issue 1 , March 1994 , pp. 119 - 122
Copyright
Copyright © Cambridge University Press 1994

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