UBC Undergraduate Research

Post application efficiency of the organic herbicides Topgun and Ecoclear, for the control of the weed species Canadian Thistle (Cirsium canadensis), Morning Glory (Convolvulus spp.) and Horsetail (Equisetum arvense) Dunsford, Teale B.


Objectives of this study were to examine the long term control of the weedy species Canada Thistle, Morning Glory, and Horsetail with previously applied Topgun and Ecoclear concentrations and combinations. No re-spraying of herbicides occurred. Weeds were counted biweekly to observe changes in plant densities. Results concluded that 100% Topgun was most effective in long term low densities of Thistle and Horsetail. Morning glory data was insignificant to show any difference. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”

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