Modeling Distribution and Abundance of Soybean Aphid in Soybean Fields Using Measurements From the Surrounding Landscape

The Atrium, University of Guelph Institutional Repository

Modeling Distribution and Abundance of Soybean Aphid in Soybean Fields Using Measurements From the Surrounding Landscape

Show simple item record

dc.contributor.author Schaafsma, A. W.
dc.contributor.author Newman, J. A.
dc.contributor.author Hallett, Rebecca H.
dc.contributor.author Sikkema, S. Sikkema
dc.contributor.author Bahlai, Christie A.
dc.date.accessioned 2010-05-06T16:18:01Z
dc.date.available 2010-05-06T16:18:01Z
dc.date.issued 2010-02
dc.identifier.citation Bahlai C.A., Sikkema S., Hallett R.H., Newman J., Schaafsma, A.W. "Modeling Distribution and Abundance of Soybean Aphid in Soybean Fields Using Measurements From the Surrounding Landscape." Environmental Entomology 39.1 (2010): 50-56 en
dc.identifier.uri http://hdl.handle.net/10214/2170
dc.description.abstract Soybean aphid (Aphis glycines Matsumura) is a severe pest of soybean in central North America. Outbreaks of the aphid in Ontario are often spotty in distribution, with some geographical areas affected severely and others with few or no aphid populations occurring in soybean for the duration of the season. A. glycines spend summers on soybean and overwinter on buckthorn, a shrub that is widespread in southern Ontario and is commonly found in agricultural hedgerows and at the margins of woodlots. A. glycines likely use both short distance migratory flights from buckthorn and longer distance dispersal flights in the search for acceptable summer hosts. This study aims to model colonization of soybean fields by A. glycines engaged in early-season migration from overwintering hosts. Akaike's information criterion (AIC) was used to rank numerous competing linear and probit models using field parameters to predict aphid presence, colonization, and density. The variable that best modeled aphid density in soybean fields in the early season was the ratio of buckthorn density to field area, although dramatic differences in relationships between the parameters were observed between study years. This study has important applications in predicting areas that are at elevated risk of developing economically damaging populations of soybean aphid and which may act as sources for further infestation. en
dc.description.sponsorship Ontario Ministry of Agriculture Food and Rural Affairs Sustainable Production Program, the Ontario Soybean Growers, Agriculture and Agri-Food Canada, the Natural Science and Engineering Research Council of Canada, and the Keefer Family Trust en
dc.language.iso en en
dc.publisher Entomological Society of America en
dc.subject model selection en
dc.subject hedgerow en
dc.subject Rhamnus cathartica en
dc.subject Aphis glycines en
dc.title Modeling Distribution and Abundance of Soybean Aphid in Soybean Fields Using Measurements From the Surrounding Landscape en
dc.type Article en


Files in this item

Files Size Format View Description
s5.pdf 460.2Kb PDF View/Open Main article

This item appears in the following Collection(s)

Show simple item record

Search the Atrium


Advanced Search

Browse

My Account