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Screening tomato (Lycopersicon esculentum Mill.) Accessions for resistance to the twospotted spider mite tetranychus urticae Koch: Population growth studies

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Publication Date
2011-09-01
Author
Knapp, Markus
Mugada, Debora Apiyo
Agong', Stephen G.
Type
Article
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Abstract/Overview

The resistance of 63 tomato (Lycopersicon esculentum Mill.) accessions to the twospotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae), was investigated in screen house experiments and compared to Money Maker, a T. urticae-susceptible variety widely grown in Kenya. The number of motile mite stages 12 days after inoculation with 5 adult female mites was significantly lower than in the control variety (Money Maker) in seven accessions (Marglobe, Roma-VF, 94 RT 330, Continental Michel, Early Pearson, ARP 366–4 and 94 RT 316). Egg numbers were significantly lower than in the control in 14 accessions (Marglobe, Cal-J-VF, Roma-VF, Beauty, 95 RT 315, 93 KT 20, EC.3504,94 RT 313, EC-1193, Continental Michel, Early Pearson, ARP 366–4,94 RT 316 and Malawi Local 3). This study reveals the existence of resistance to T. urticae in the tomato accessions.

Publisher
International Journal of Tropical Insect Science
Permalink
https://doi.org/10.1017/S1742758400012200
http://ir.jooust.ac.ke:8080/xmlui/handle/123456789/1380
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