The seasonal occurrence, soil distribution and flight characteristics of Curculio sayi (Coleoptera: Curculionidae) in mid-Missouri

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The seasonal occurrence, soil distribution and flight characteristics of Curculio sayi (Coleoptera: Curculionidae) in mid-Missouri

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/5028

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dc.contributor.advisor Barrett, Bruce A. en
dc.contributor.author Keesey, Ian W. en_US
dc.date.accessioned 2010-01-12T19:08:35Z
dc.date.available 2010-01-12T19:08:35Z
dc.date.issued 2007 en_US
dc.date.submitted 2007 Fall en
dc.identifier.other KeeseyI-120707-T8417 en_US
dc.identifier.uri http://hdl.handle.net/10355/5028
dc.description The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. en_US
dc.description Title from title screen of research.pdf file (viewed on November 11, 2008) en_US
dc.description Includes bibliographical references. en_US
dc.description Thesis (M.S.) University of Missouri-Columbia 2007. en_US
dc.description Dissertations, Academic -- University of Missouri--Columbia -- Entomology. en_US
dc.description.abstract Chestnut trees were once a dominant sight across the deciduous forest of the eastern and central United States, but following a devastating blight in the early 1900's much of the native range for this tree species has been lost. As interest in the restoration of the American chestnut tree increases, and as commercial production of chestnut fruit is being developed using blight resistant cultivars from Asia, a large quantity of both native and hybridized trees are coming into maturity and nut production across the United States. The two weevil species in the United States, the greater chestnut weevil (Curculio caryatrypes, Boheman) and the lesser chestnut weevil (Curculio sayi, Gyllenhal) attack ripening chestnut fruit, and they can devastate a chestnut operation. Of these two species, the lesser chestnut weevil (C. sayi) has long been reported as the most common and most damaging chestnut pest insect species. Our study shows a bimodal emergence pattern for C. sayi, a finding not previously documented for this species of chestnut weevil. Emergence patterns were consistent over the three years of this study, with the largest numbers of adults appearing in May and September each year. Underground study results indicate a minimum of 15 months in larval diapause prior to adult development for C. sayi. Most of the larvae emerged as adults in the second year, though some may hold over to emerge the third year. The flight ability of C. sayi allows them to travel up to 3 kilometers in a single flight, though average distances per flight were closer to 500 meters. There were no major differences in flight ability between the genders. This study lays the basic biological and ecological ground work required for continued research into C. sayi, and for the establishment of educated pest management. en_US
dc.language.iso en_US en_US
dc.publisher University of Missouri--Columbia en_US
dc.subject.lcsh American chestnut en_US
dc.subject.lcsh American chestnut -- Diseases and pests en_US
dc.subject.lcsh Chestnut weevils -- Management en_US
dc.title The seasonal occurrence, soil distribution and flight characteristics of Curculio sayi (Coleoptera: Curculionidae) in mid-Missouri en_US
dc.type Thesis en_US
thesis.degree.discipline Entomology en_US
thesis.degree.grantor University of Missouri--Columbia en_US
thesis.degree.name M.S. en_US
thesis.degree.level Masters en_US
dc.identifier.merlin .b65265038 en_US
dc.identifier.oclc 271017113 en_US
dc.relation.ispartofcommunity University of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2007 Theses
dc.relation.ispartofcollection 2007 Freely available theses (MU)


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