Entomologia Experimentalis et Applicata (2000) 94, 249-257

Raksha Malakar and Ward M. Tingey (2000)
Glandular trichomes of Solanum berthaultii and its hybrds with potato deter oviposition and impair growth of potato tuber moth
Entomologia Experimentalis et Applicata 94 (3), 249-257
Abstract: Glandular trichomes on foliage of the wild potato species, Solanum berthaultii Hawkes, deter oviposition by the potato tuber moth (PTM), Phthorimaea operculella Zeller and negatively affect other important performance parameters. Oviposition deterring factors are localized in the glandular trichomes of S. berthaultii. When mechanically transferred to foliage of a susceptible potato cultivar, trichome contents reduced egg laying by 97%. Removal of glandular trichomes from S. berthaultii foliage using a combination of chemical and mechanical procedures increased oviposition rates ca. 210-fold. Removal of trichomes also led to increased mobility of larvae on the leaf surface, more leaf feeding, shorter larval development and larger pupae. The resistance conferred by glandular trichomes of S. berthaultii provides an important genetic trait potentially useful for management of PTM.
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Link to article at publishers website
Database assignments for author(s): Raksha Malakar-Kuenen, Ward M. Tingey

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.
	Phthorimaea operculella	Potato (Solanum tuberosum)