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  Evaluation of Rate and Timing Effect of Mesotrione within Cranberry (Vaccinium macrocarpon Ait.) Production

G.L. Graham1, R. Tremblay1 and G. Thebeau2

Parter: New Brunswick Cranberry Growers Association

Abstract: Mesotrione may offer significant weed control within cranberry production. A trial was established near Saint Charles, New Brunswick, to evaluate mesotrione application rates, timings and repeated applications on sedge (Cyperaceae) species. No crop injury or yield reductions were noted for any of the treatments evaluated. Weed pressure and control levels were variable, making conclusions difficult. No consistent difference was noted between the 50 and 100 g active ingredient/ha application rates or the application timings. Repeated applications tended to improve weed control, especially for early and late season evaluations, but were not consistently significant. This work should be repeated in other areas and, for other weed species, to fully understand the potential of mesotrione for cranberry production.

1NB Department of Agriculture and Aquaculture, Crop Development Branch, P. O. Box 6000, Fredericton, NB E3B 5H1
2NB Department of Agriculture and Aquaculture, Regional Agri-Business Development, 26 Acadie Street Bouctouche, New Brunswick E4S 2T2 Canada

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