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Biotype determination of Spanish populations of Bemisia tabaci (Hemiptera: Aleyrodidae)

P. Guirao ; F. Beitia ; J. Cenis | 1997

A survey was made to assess the biotype status of populations of the whitefly Bemisia tabaci (Gennadius) in Spain. The study involved observation of the squash silver leaf reaction, analysis of esterase patterns and application of a RAPD-PCR tec[...]

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A differential interaction study of Bemisia tabaci Q-biotype on commercial tomato varieties with or without the Mi resistance gene, and comparative host responses with the B-biotype

G. Nombela ; F. Beitia ; M. Muniz | 2001

Three tomato varieties (Motelle, Ronita, and VFN8) bearing the Mi-1.2 gene providing resistance to nematodes Meloidogyne spp. and to the potato aphid Macrosiphum euphorbiae Thomas, and three varieties not bearing this gene (Moneymaker, Roma, and[...]

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Genetic relationships among biotypes of Bemisia tabaci (Hemiptera : Aleyrodidae) based on AFLP analysis

M. Cervera ; J. Cabezas ; B. Simon ; J. Martinezzapater ; F. Beitia ; J. Cenis | 2000

Genetic similarities between 13 samples belonging to nine reference biotypes and two field populations of Bemisia tabaci (Gennadius), one field population of B. medinae Gomez-Menor and another of B. afer Priesner & Hosny, were evaluated using am[...]

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