Horticultura Brasileira (2002) 20, 480-484

Wilson Itamar Maruyama, Luciana Cláudia Toscano, Arlindo L. Boiça Júnior and José Carlos Barbosa (2002)
Resistência de genótipos de tomateiro ao ácaro rajado
[Resistance of tomato genotypes to spider mite]
Horticultura Brasileira 20 (3), 480-484
Abstract: The resistance of different tomato genotypes to spider mite (Tetranychus urticae) was evaluated. The wild genotypes evaluated were Lycopersicon pennellii (LA 716), L. hirsutum f. glabratum (PI 126449, PI 134417), L. hirsutum (PI 127826, PI 127827), L. peruvianum (CGO 6707), L. peruvianum f. dentatum (WYR 2020, LA 111), L. peruvianum f. glandulosum (LA 1113-1, LA 1113-2); and the commercial genotypes (L. esculentum) were Gem Pride, Santa Clara, and the F1 hybrids Bruna VFN, Carmem, Fortaleza and Débora Plus VFN. The number of eggs was counted, young phases (larvae, protonimphs, deutonimphs) and adults per leafleft. After the counting, the index of oviposition preference (IOP) also was calculated. The experiment was realized in randomized block design, with six replications. The LA 716, PI 126449, PI 134417, PI 127827, PI 127826 and Gem Pride genotypes showed non-preference for spider mite oviposition, being deterrents through IOP classification, while LA 111, WYR 2020, LA 1113-2 and LA1113-1 genotypes were the more preferred for oviposition and stimulants for oviposition by the IOP.
(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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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.
	Tetranychus urticae	Tomato (Solanum lycopersicum)	Brazil (south)