Spatial analysis of seasonal dynamics and overwintering of Drosophila suzukii (Diptera: Drosophilidae) in the Okanagan-Columbia Basin, 2010–2014
Spatial analysis of seasonal dynamics and overwintering of Drosophila suzukii (Diptera: Drosophilidae) in the Okanagan-Columbia Basin, 2010–2014
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- dc.contributor.author
- Thistlewood, Howard M.A.
- Gill, Paramjit
- Beers, Elizabeth H.
- Shearer, Peter W.
- Walsh, Doug B.
- Rozema, Brigitte M.
- Acheampong, Susanna
- Castagnoli, Steve
- Yee, Wee L.
- Smytheman, Peter
- Whitener, Alix B.
- dc.date.accessioned
- 2023-04-13T15:01:40Z
- dc.date.available
- 2023-04-13T15:01:40Z
- dc.date.issued
- 2018-02-28
- dc.description.abstract - en
- Spotted wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), was monitored from 2010 to 2014 in 314–828 sites located in interior fruit-growing regions of OR and WA, United States, and BC, Canada, using traps baited with apple cider vinegar or sugar-water-yeast. Seasonal population dynamics and sex ratios were summarized for berry, cherry, stone fruit, grape, non-crop host plants, non-host sites, and for conventional IPM, certified organic, backyard, and feral sites, by region and year. Overwintering was detected in all regions and years, despite winter temperatures below −17°C. A spatial analysis was conducted using a Geographic Information System (GIS), daily weather data, geomorphometric measures of terrain, distance to water, and other variables, at each site. Overwintering success at a site, measured as Julian week of first capture of D. suzukii, was significantly related (R2 = 0.49) in cherry habitats to year, agronomic treatment, and number of winter days with temperatures >−5°C. In berry, cherry, stone fruit and grape habitats, 2011–2014, it was significantly related (R2 = 0.42) to year, agronomic treatment, the logarithm of peak population of D. suzukii in the prior autumn, latitude, elevation, and topographic wetness index. The results show that D. suzukii has adapted to exploit a succession of irrigated crops and feral habitats in mixed landscapes of a semi-arid region with cold winters and hot dry summers, and are shaping strategies for pest management and for biological control.
- dc.identifier.citation
- Thistlewood, H. M., Gill, P., Beers, E. H., Shearer, P. W., Walsh, D. B., Rozema, B. M., Acheampong, S., Castagnoli, S., Yee, W. L., Smytheman, P., & Whitener, A. B. (2018). Spatial analysis of seasonal dynamics and overwintering of drosophila suzukii (Diptera: Drosophilidae) in the Okanagan-columbia basin, 2010–2014. Environmental Entomology, 47(2), 221–232. https://doi.org/10.1093/ee/nvx178
- dc.identifier.doi
- https://doi.org/10.1093/ee/nvx178
- dc.identifier.issn
- 1938-2936
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/143
- dc.language.iso
- en
- dc.publisher
- Oxford University Press
- dc.rights.openaccesslevel - en
- Gold
- dc.rights.openaccesslevel - fr
- Or
- dc.subject - en
- Agriculture
- dc.subject - fr
- Agriculture
- dc.subject.en - en
- Agriculture
- dc.subject.fr - fr
- Agriculture
- dc.title - en
- Spatial analysis of seasonal dynamics and overwintering of Drosophila suzukii (Diptera: Drosophilidae) in the Okanagan-Columbia Basin, 2010–2014
- dc.title.fosrctranslation - fr
- Spatial analysis of seasonal dynamics and overwintering of Drosophila suzukii (Diptera: Drosophilidae) in the Okanagan-Columbia Basin, 2010–2014
- dc.type - en
- Article
- dc.type - fr
- Article
- local.article.journalissue
- 2
- local.article.journaltitle
- Environmental Entomology
- local.article.journalvolume
- 47
- local.article.pagination
- 221-232
- local.peerreview - en
- Yes
- local.peerreview - fr
- Oui
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