Life Histories and Fitness of Two Tuber Moth Species Feeding on Native Andean Potatoes

Horgan, FG; Quiring, DT; Lagnaoui, A; Pelletier, Y

Life Histories and Fitness of Two Tuber Moth Species Feeding on Native Andean Potatoes

Horgan, FG

Quiring, DT Lagnaoui, A Pelletier, Y

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Publication Type:: Journal Article
Citation:: Neotropical Entomology, 2012, 41 (4), pp. 333 - 340
Issue Date:: 2012-08-01

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Field	Value	Language
dc.contributor.author	Horgan, FG https://orcid.org/0000-0003-3796-667X	en_US
dc.contributor.author	Quiring, DT	en_US
dc.contributor.author	Lagnaoui, A	en_US
dc.contributor.author	Pelletier, Y	en_US
dc.date.available	2012-05-03	en_US
dc.date.issued	2012-08-01	en_US
dc.identifier.citation	Neotropical Entomology, 2012, 41 (4), pp. 333 - 340	en_US
dc.identifier.issn	1519-566X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/114968
dc.description.abstract	In the inter-Andean valleys of central Perú, two species of tuber moth, Phthorimaea operculella (Zeller) and Symmetrischema tangolias (Gyen), often occur simultaneously in stored potatoes. Traditional farming communities in the region produce a variety of native potatoes for local consumption. These include Solanum tuberosum subsp. andigena, the presumed predecessor of commercial potatoes, S. tuberosum subsp. tuberosum. In this study, we examined resistance against P. operculella in ten native Peruvian potato varieties (Casa blanca, Chispiadita, Madre de vaca, Mamaco negro, Misha, Chorisa, Mamaco rosado, Occa papa, Vacapa jayllo, and Yana tornasol). We also compared resistance in the first five of these varieties against S. tangolias. Varieties with pigmented periderms showed moderate resistance (30-40% against P. operculella in Mamaco negro, Mamaco rosado, and Yana tornasol and 55% against S. tangolias in Mamaco negro). All the other varieties were susceptible to both moth species. Small tubers tended to be the most resistant to the attack by both moths; however, this was not related to the availability of food for developing larvae, since pupal weight and development time were unaffected by the size of tubers. Similar responses by the two moths to native potatoes indicate that tuber resistance could be used to control the complex of tuber moths that damage potatoes in the Andes. We suggest that native potatoes, which are often easily introgressed with commercial potatoes, are a potential source of resistance against tuber moths. © 2012 Sociedade Entomológica do Brasil.	en_US
dc.relation.ispartof	Neotropical Entomology	en_US
dc.relation.isbasedon	10.1007/s13744-012-0042-z	en_US
dc.subject.classification	Entomology	en_US
dc.subject.mesh	Animals	en_US
dc.subject.mesh	Moths	en_US
dc.subject.mesh	Feeding Behavior	en_US
dc.subject.mesh	Solanum tuberosum	en_US
dc.title	Life Histories and Fitness of Two Tuber Moth Species Feeding on Native Andean Potatoes	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	41	en_US
utslib.for	0703 Crop and Pasture Production	en_US
utslib.for	0608 Zoology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	41	en_US

Abstract:

In the inter-Andean valleys of central Perú, two species of tuber moth, Phthorimaea operculella (Zeller) and Symmetrischema tangolias (Gyen), often occur simultaneously in stored potatoes. Traditional farming communities in the region produce a variety of native potatoes for local consumption. These include Solanum tuberosum subsp. andigena, the presumed predecessor of commercial potatoes, S. tuberosum subsp. tuberosum. In this study, we examined resistance against P. operculella in ten native Peruvian potato varieties (Casa blanca, Chispiadita, Madre de vaca, Mamaco negro, Misha, Chorisa, Mamaco rosado, Occa papa, Vacapa jayllo, and Yana tornasol). We also compared resistance in the first five of these varieties against S. tangolias. Varieties with pigmented periderms showed moderate resistance (30-40% against P. operculella in Mamaco negro, Mamaco rosado, and Yana tornasol and 55% against S. tangolias in Mamaco negro). All the other varieties were susceptible to both moth species. Small tubers tended to be the most resistant to the attack by both moths; however, this was not related to the availability of food for developing larvae, since pupal weight and development time were unaffected by the size of tubers. Similar responses by the two moths to native potatoes indicate that tuber resistance could be used to control the complex of tuber moths that damage potatoes in the Andes. We suggest that native potatoes, which are often easily introgressed with commercial potatoes, are a potential source of resistance against tuber moths. © 2012 Sociedade Entomológica do Brasil.

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http://hdl.handle.net/10453/114968