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Arboriculture & Urban Forestry Online
Volume 18, Issue 2 — March 1992

Growth Response of Acer Saccharinum to Flurprimidol Injection    (View PDF)

James O. Luken and Roger D. Blanchard

Abstract: Cutless (flurprimidol) was injected in the trunks of nine silver maple trees during fall 1989. Eight trees of similar size and condition were not injected but served as controls. During the 1990 and 1991 growing seasons, significant reductions in leaf mass, current-year stem mass, and currentyear stem length in both upper and lower canopy branches occurred with Cutless injection. The longest shoots on injected trees showed 72 - 88% reduction in mean length when compared to control trees. A random sample of shoots (30 per branch) from injected trees also showed 80 - 82% reduction in mean length. Injected trees had variable response and gaunt appearance.


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