Abstract
Abstract The ability of a systemic selenium compound (SeO2) to reduce vole damage in hybrid poplars was tested in a feeding trial using captive voles. Selenium was applied to the soil around the base of trees twice during the growing season as 1000 mg SeO2 in 30 ml water. Treated cuttings achieved selenium concentrations of 6.43 ppm, over 9 × greater than controls (P < 0.001). Cuttings were taken from these treated and control trees, and offered to captive voles in a two-choice feeding trial. No significant differences (P = 0.205) in feeding were found between the selenium-treated and control cuttings. Although treated trees had higher levels of selenium than control trees, it appears that the concentrations tested did not reduce vole feeding on hybrid poplars. West. J. Appl. For. 18(3):163–165.
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