Revised, March 31 — Cheminova Canada has picked up registration for an “effective and economical alternative” to DuPont’s Express, a tank-mix partner for weed killers such as glyphosate or 2,4-D.
Nuance, a granular sulfonylurea herbicide, will be available throughout Western Canada this year with the Group 2 chemical tribenuron methyl as its active ingredient.
The broadleaf weed killer is sold on its own, but before use, it must be tank-mixed with approved partner herbicides.
Cheminova on Tuesday billed the product as an “economical alternative to DuPont’s Express SG,” but a DuPont spokesperson said Wednesday that Express SG includes proprietary technology that allows its granules to dissolve into solution.
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A granular version of Express that doesn’t include the company’s Solumax technology would instead form a water-dispersed suspension, which involves “very different” recommendations on tank cleanout, the DuPont spokesperson said.
The spokesperson said Nuance would instead be similar in formulation to DuPont’s Express Toss-N-Go product.
Nuance “will provide growers with a new weapon for use in pre-seed burndown, summerfallow and or post-harvest applications when tank-mixed with glyphosate,” Cheminova said in a release Tuesday.
“Nuance provides effective, consistent control of many hard-to-kill broadleaf weeds, sharpening the activity and weed spectrum of glyphosate,” Cheminova Canada country manager Doug McLean said in the company’s release.
“In addition to glyphosate, Nuance can also be mixed with other suitably registered herbicides such as 2,4-D or MCPA ester for resistance management, expanded weed spectrum as well as various other use patterns,” he said.
Nuance is to be packaged by the case of eight 320-gram bottles, one of which can be used to treat 80 acres at the “most commonly used rate,” the company said.
Nuance also has no restrictions on recropping choices the following season, the company said.
Based at Kilworth, Ont., west of London, the Canadian wing of Danish ag chem firm Cheminova markets a stable of proprietary and off-patent generic herbicides, insecticides and fungicides.
