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Wiley InterScience | ||||||||||||
  Entomologia Experimentalis et ApplicataVolume 120 Issue 2, Pages 131 - 137 Published Online: 12 Jul 2006 Journal compilation © 2010 The Netherlands Entomological Society Published on behalf of The Netherlands Entomological Society
Abstract | References | Full Text: HTML, PDF (Size: 171K) | Related Articles | Citation Tracking  Aspects of tuber resistance in hybrid potatoes to potato tuber worm Copyright © 2006 Society/Blackwell Publishing Ltd No claim to original US government works KEYWORDS larval behavior • oviposition •
Phthorimaea operculella
•
Solanum berthaultii
•
Solanum tuberosum
• potato tuber moth • periderm thickness • Lepidoptera • Gelechiidae Abstract
Tubers produced from crosses between the wild potato, Solanum berthaultii Hawkes (Solanaceae), and the cultivated species Solanum tuberosum L. (Solanaceae) are resistant to potato tuber worm (PTW), Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae), infestation compared to those of the popular commercial North American cultivars Allegany, Atlantic, Chieftain, Katahdin, MaineChip, NorDonna, Norwis, Russet Norkotah, Snowden, and Yukon Gold. Given a choice between Atlantic and hybrid tubers, female PTW deposited ca. 50% fewer eggs on hybrid tubers than on those of Atlantic; larval survival and production of prepupae on hybrid tubers were reduced similarly. Time needed for neonates to penetrate eye buds was ca. 100 min greater on hybrid tubers compared to that on cv. Atlantic. Periderm of hybrid tubers is thicker than that of cv. Atlantic and may contribute to the delay in larval penetration of tubers and the success of initial establishment. Accepted: 21 March 2006 | 
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