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Evaluation of companion crops for thrips (Thysanoptera: Thripidae) management on French bean Phaseolus vulgaris (Fabaceae)

Published online by Cambridge University Press:  28 February 2007

J. Kasina ,
J. Nderitu ,
G. Nyamasyo ,
F. Olubayo ,
C. Waturu ,
E. Obudho  and
D. Yobera
J. Kasina*
Affiliation:
Department of Plant Science and Crop Protection, University of Nairobi, PO Box 30197, Nairobi, Kenya
J. Nderitu*
Affiliation:
Department of Plant Science and Crop Protection, University of Nairobi, PO Box 30197, Nairobi, Kenya
G. Nyamasyo
Affiliation:
Department of Zoology, University of Nairobi, PO Box 30197, Nairobi, Kenya
F. Olubayo
Affiliation:
Department of Plant Science and Crop Protection, University of Nairobi, PO Box 30197, Nairobi, Kenya
C. Waturu
Affiliation:
National Fibre Research Centre, Kenya Agricultural Research Institute, PO Box 298, Kerugoya, Kenya
E. Obudho
Affiliation:
Department of Plant Science and Crop Protection, University of Nairobi, PO Box 30197, Nairobi, Kenya
D. Yobera*
Affiliation:
Department of Plant Science and Crop Protection, University of Nairobi, PO Box 30197, Nairobi, Kenya
*
*Email: [email protected] [email protected]
*Email: [email protected] [email protected]
†Author deceased
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Abstract

Six companion crops, i.e. Tagetes erecta, Daucus carota L., Coriandrum sativum L., Brassica oleraceae L. var. acephala, Capsicum annuum L. and Zea mays L., were evaluated for their efficacy in suppressing field populations of Frankliniella occidentalis (Pergande) and Megalurothrips sjostedti Trybom on French bean Phaseolus vulgaris L. Each companion crop was interplanted with French beans in a 3×10 m plot and replicated three times in a completely randomized block design. The thrips populations on French bean flowers in experimental plots were compared with those on beans treated with two insecticides: L-cyhalothrin (Karate 1.75% EC) and methiocarb (Mesurol 500 SC) or untreated (control). Coriandrum sativum, Z. mays and T. erecta are recommended as companion crops for intercropping with French beans to reduce populations of thrips and hence minimize the use of chemical insecticides on this crop.

Keywords

companion cropsintercroppingFrankliniella occidentalisMegalurothrips sjostedtiPhaseolus vulgaris
Type
Research Article
Information
International Journal of Tropical Insect Science , Volume 26 , Issue 2 , June 2006 , pp. 121 - 125
Copyright
Copyright © ICIPE 2006

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