G.L. Graham and D. Savoie
Abstract: Cuphea (Cuphea viscosissima x C. lanceolata) is a potential new crop for New Brunswick producers.
Cuphea is slow to emerge and establish. This crop is best grown in weed–free conditions. Herbicide options for
weed control were evaluated in a trial near New Denmark, New Brunswick. Plant emergence and resulting plant
population was very low and may influence the results presented. Excellent crop tolerance was found following
isoxaflutole, mesotrione PRE, glyphosate, clopyralid, sethoxydim and mesotrione POST. A high level of weed control
was shown from isoxaflutole, mesotrione, glyphosate plus BAS 800H and nicosulfuron. Mesotrione and isoxaflutole
provided both excellent weed control and crop tolerance. Both products should be evaluated further to understand their
utility within cuphea production in New Brunswick.