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Scrobipalpa atriplicella (Lepidoptera: Gelechiidae), an invasive insect attacking quinoa (Amaranthaceae) in North America

Published online by Cambridge University Press:  21 June 2017

Boyd A. Mori ,
Colin Dutcheshen  and
Tyler J. Wist
Boyd A. Mori*
Affiliation:
Saskatoon Research and Development Centre, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, Saskatchewan, S7N 0X2, Canada
Colin Dutcheshen
Affiliation:
NorQuin (Northern Quinoa Production Corporation), 3002 Millar Avenue, Saskatoon, Saskatchewan, S7K 5X9, Canada
Tyler J. Wist
Affiliation:
Saskatoon Research and Development Centre, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, Saskatchewan, S7N 0X2, Canada
*
1Corresponding author (e-mail: Boyd.Mori@canada.ca)
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Abstract

Quinoa, Chenopodium quinoa Willdenow (Amaranthaceae), cultivation has expanded beyond its historical range in South America into Europe and North America due to its high nutritional properties for human consumption. With the introduction of a crop into a novel range comes the potential for insect pest issues. Here, using traditional morphology and DNA barcoding we identify larvae of Scrobipalpa atriplicella (von Röslerstamm) (Lepidoptera: Gelechiidae), an introduced Eurasian moth, feeding on quinoa throughout the Prairie region of western Canada. Larvae can feed within the stem, on foliage, and directly on seed within the panicles, which can result in up to a 100% yield loss. We summarise distinguishing adult characteristics, potential host plants, and give initial remarks on the life cycle of this moth and its known host range in Canada. The potential for high yield losses makes further investigation of S. atriplicella a priority to maintain and expand sustainable quinoa production in Canada.

Type
Insect Management - Note
Information
The Canadian Entomologist , Volume 149 , Issue 4 , August 2017 , pp. 534 - 539
Copyright
© Her Majesty the Queen in Right of Canada, as represented by the Minister of Agriculture and Agri-Food Canada 2017 

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Footnotes

Subject editor: Jon Sweeney

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