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Biologists track the invasion of herbicide-resistant weeds into southwestern Ontario

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A team led by biologists have identified the ways in which herbicide-resistant strains of the invasive common waterhemp weed have emerged in fields of soy and corn in southwestern Ontario. The resistance, first detected in 2010, spread thanks to two mechanisms: either pollen and seeds of resistant plants were physically dispersed by wind, water and […]

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Teen study reveals how schools influence e-cigarette use, outlines prevention strategies

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When e-cigarettes hit the US market in 2007, they were promoted as a safer, healthier alternative to traditional, combustible cigarettes. The unintended consequence of vaping devices and e-cigarettes, however, is a new generation of vapers — teenagers — becoming addicted to nicotine. This study examines how schools influence e-cigarette use in adolescence, outlining various prevention […]