Response of desirable trees to aminocyclopyrachlor in the field and greenhouse
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Aminocyclopyrachlor is a selective, plant growth regulator herbicide in the pyrimidine carboxylic acid family. Previously, aminocyclopyrachlor was marketed for turfgrass management but was withdrawn by the EPA in light of unexpected non-target injury related to desirable tree species such as white pine (Pinus strobus), and Norway spruce (Picea abies). Field trials to assess the impact of aminocyclopyrachlor on two tree species green ash (Fraxinus pennsylvanica) and honeylocust (Gleditsia triacanthos) were conducted to determine the relative sensitivity of green ash and honeylocust to ...