This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
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Fall 2021
Plasmodiophora brassicae Wor. is a soilborne parasite causing clubroot of canola (Brassica napus L.), a serious disease managed mostly by planting clubroot resistant (CR) cultivars. Recently, new pathotypes of P. brassicae have emerged that overcome resistance, highlighting the need for a greater...
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Examining the Biology and Monitoring Tools of Sitodiplosis mosellana in the Peace River region, Alberta
DownloadSpring 2019
Wheat midge, Sitodiplosis mosellana Géhin (Diptera: Cecidomyiidae), is an invasive pest of wheat that has spread into the Peace River region of Alberta, Canada. The biology and monitoring of wheat midge has not previously been examined in this region. Wheat midge overwintering density and...
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New options for Integrated Pest Management of Varroa destructor (Acari: Varroidae) in colonies of Apis mellifera (Hymenoptera: Apidae) under Canadian Prairie conditions
DownloadSpring 2013
Varroa destructor Anderson & Truman 2000 (Acari: Varroidae) is an ectoparasite of Apis mellifera L. (Hymenoptera: Apidae) that is managed using the strategy of Integrated Pest Management to prevent A. mellifera colony mortality. New miticides for the Integrated Pest Management of V. destructor...