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Resistance of selected melon lines to the carmine spider mite Tetranychus cinnabarinus (Acari: Tetranychidae)–field and laboratory experiments

Published online by Cambridge University Press:  10 July 2009

Fadel Mansour ,
Z. Shain ,
Z. Karchi  and
U. Gerson
Fadel Mansour*
Affiliation:
Agricultural Research Organization, Newe Ya'ar Research Center, Haifa, Israel
Z. Shain
Affiliation:
Agricultural Research Organization, Newe Ya'ar Research Center, Haifa, Israel
Z. Karchi
Affiliation:
Agricultural Research Organization, Newe Ya'ar Research Center, Haifa, Israel
U. Gerson
Affiliation:
Department of Entomology, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
*
ARO, Newe Ya'ar Research Center, P.O. Haifa 31999, Israel
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Abstract

The resistance of two melon lines (CHI-7 and BUS-7) selected for resistance to the carmine spider mite, Tetranychus cinnabarinus (Boisduval), and of the susceptible line (NY), was studied under field and laboratory conditions. Significant differences among lines were observed at different growth stages. Throughout the season, the resistant lines had reduced populations of mites, 35–100% lower on CHI-7 and 25–100% lower on BUS-7, compared with the susceptible line NY. Laboratory evaluation of antibiosis to the mite at different plant growth stages showed that on CHI-7 and BUS-7 mite fecundity was reduced by 29–60% and 43–83%, respectively.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 84 , Issue 2 , June 1994 , pp. 265 - 267
Copyright
Copyright © Cambridge University Press 1994

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