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Differences in Phyllotreta cruciferae and Phyllotreta striolata (Coleoptera: Chrysomelidae) responses to neonicotinoid seed treatments
Download2008
Keddie, B. A., Sarfraz, R. M., Tansey, J. A., Dosdall, L. M.
Abstract: Insecticidal seed treatments are used commonly throughout the Northern Great Plains of North America to systemically protect seedlings of canola (Brassica napus L. and Brassica rapa L.) from attack by the flea beetles Phyllotreta cruciferae (Goeze) and Phyllotreta striolata (F.)...
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Species delimitation in the Choristoneura fumiferana species complex (Lepidoptera: Tortricidae)
DownloadFall 2010
Species identifications have been historically difficult in the economically important spruce budworm (Choristoneura fumiferana) pest complex. Morphological, ecological, behavioural, and genetic characters have been studied to try to understand the taxonomy of this group, but diagnostic character...
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Relationships and introgression within Carthamus (Asteraceae), with an emphasis on safflower (Carthamus tinctorius).
DownloadFall 2010
Carthamus (Asteraceae) contains both crop species (C. tinctorius, safflower) and weedy species, increasing the need for a better understanding of the genus. Despite previous studies, many outstanding questions remain regarding the phylogenetic relationships of safflower, especially with regards...
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Fall 2019
Temporal isolation contributes to ecological speciation in a diversity of insect taxa. Such prezygotic isolation can reduce or stop hybridization between closely related taxa or populations, leading to speciation. Within the spruce budworm (Choristoneura fumiferana) species complex, hybridization...