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  Screening of Herbicides for Use in the Spring Following Land Clearing in Wild Blueberries

G.L. Graham, G. Chiasson and M. Melanson

Partner : Bleuets NB Blueberries

Abstract: With increased land clearing planned in New Brunswick, growers are in need of alternative strategies for weed control in blueberry stand establishment. Two trials, near Lavillette and Aulac, were established in commercial wild blueberry fields in 2009 to evaluate herbicide options for land clearing. Herbicide treatments had a minimal effect at the Lavillette location, likely due to the more difficult to control lambkill and rhodora weeds present. A high level of crop injury was reported from the Pronone post-emergence treatment at the Aulac location. Weed control at Aulac was highly variable. DPX-MAT rate and timing should be further refined to determine its utility within blueberry production. Hexazinone alone was not effective and it should be evaluated in combination with other herbicide treatments (mesotrione) to improve the weed control levels within initial land clearing operations.

Agriculture, Aquaculture and Fisheries
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