Horticultura Brasileira (2006) 24, 446-449

André C. Alves, André Luiz Lourenção, Arlete M.T. de Melo and Evandro da S. Matos (2006)
Atratividade e preferência para oviposição de Trialeurodes vaporariorum em genótipos de aboboreira
[Attractiveness and oviposition preference of Trialeurodes vaporariorum in squash genotypes]
Horticultura Brasileira 24 (4), 446-449
Abstract: Thirteen squash genotypes were evaluated in relation to attractiveness and oviposition preference of Trialeurodes vaporariorum (West.) (Hemiptera: Aleyrodidae) under field and greenhouse conditions. In the field, two experiments were carried out, one being with bush squash and the other with summer squash genotypes. Plant infestation occurs naturally after seedling transplanting. By counting adults on the abaxial surfaces of the leaves, in the bush squash experiment, the hybrid 'Arlika' showed the lowest attractiveness; in the summer squash experiment, no difference was observed among genotypes. Regarding eggs counting, 'Arlika' (bush squash experiment), 'Atlas', 'Sandy', 'Barbara', 'Baianinha' and 'Caravela' (summer squash experiment) presented nonpreference for oviposition. Oviposition was also evaluated in two no-choice experiments, with artificial infestation, under greenhouse conditions. In both, the least preferred genotypes for oviposition in the free-choice test maintained the nonpreference, demonstrating that the resistance is stable.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Database assignments for author(s): André Luiz Lourencao

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Trialeurodes vaporariorum	Squash/pumpkin (Cucurbita)	Brazil (south)