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dc.contributor.authorShrader, M. E.
dc.contributor.authorBurrack, H. J.
dc.contributor.authorPfeiffer, Douglas
dc.date.accessioned2019-01-06T19:45:04Z
dc.date.available2019-01-06T19:45:04Z
dc.date.issued2018-10-01
dc.identifier.urihttp://hdl.handle.net/10919/86619
dc.description.abstractDrosophila suzukii (Matsumura) is a pest of small fruits and grapes in the United States and in its home range of Japan. Physiological and morphological laboratory testing was performed on six commonly grown wine grape varieties in Virginia. Skin thickness, penetration force, and ºBrix were analyzed to determine ovipositional preferences. Experiments were performed for three consecutive years from grapes collected at one Virginia vineyard. More eggs were laid in intact Viognier grapes than any other variety. Oviposition into intact grapes was not affected by skin thickness or ºBrix; however, oviposition increased when penetration force decreased. An ovipositional choice test determined no varietal preferences. Survivorship from egg to adulthood using uninjured and injured grapes was also assessed to determine varietal suitability as D. suzukii hosts, with more flies emerging from injured grapes than uninjured. However, D. suzukii adults did emerge from intact grapes and at higher percentages than previously recorded in other wine grape studies. All varieties had eggs oviposited into them when injured. Determining the time at which each grape variety became susceptible to oviposition was determined using a D. suzukii bioassay spanning 12 wk using grapes from the green pea stage until ripe. Susceptibility to D. suzukii oviposition was based upon ripening period and penetration force. Early ripening varieties may be more susceptible to D. suzukii oviposition in the field with later maturing, harder fleshed-varieties which may escape D. suzukii oviposition.
dc.format.extentPages 1-10
dc.rightsIn Copyright (InC)
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subject0703 Crop And Pasture Production
dc.subject0501 Ecological Applications
dc.subject0608 Zoology
dc.subjectEntomology
dc.titleDrosophila suzukii (Diptera: Drosophilidae) oviposition and adult emergence in six wine grape varieties grown in Virginia
dc.typeArticle - Refereed
dc.date.updated2019-01-06T19:45:02Z
dc.description.versionPublished (Publication status)
dc.description.notesThe lead author, Meredith Shrader, was my doctoral student.
dc.title.serialJournal of Economic Entomology
dc.identifier.doihttps://doi.org/10.1093/jee/toy305
dc.type.otherArticle
dc.identifier.volumeAdvance On-line
dc.identifier.orcidPfeiffer, Douglas [0000-0002-5283-7545]
dcterms.dateAccepted2018-09-05
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences
pubs.organisational-group/Virginia Tech
pubs.organisational-group/Virginia Tech/All T&R Faculty
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Entomology
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Faculty


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