The good news for cereal growers is that Corteva has introduced a new active ingredient to fight broadleaf weeds.
The bad news is it won’t be available until 2028.
The new product is called Bexoveld, which Corteva says provides good control of broadleaf weeds, including key resistant species in cereal crops.
At low rates Bexoveld is effective against kochia, the number one broadleaf enemy of cereals in North America.
The novel auxin is a third generation 6-Arylpicolinate proprietary product built on experience with Arylex and Rinskor.
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“Bexoveld manages resistance by providing good post-emergence control of broadleaf weeds, including resistant biotypes,” said Mauricio Morell, leader of the company’s crop protection pipeline. I
“It binds differentially to auxin receptors, conferring better options for the control of resistant weeds.…
“As a part of an integrated weed management program, in rotation and combination with other herbicides, Bexoveld will help cereal growers manage resistant weeds. Bexoveld has shown activity on volunteer canola. However, testing is not yet complete to conclude the level of control expected.”
Arylpicolinate herbicides are noted for their favourable regulatory, toxicological and environmental profiles, Morell said.
Bexoveld breaks down quickly in soil, at least as fast as glyphosate, which means crop restrictions in the following season are minimal.
Residue levels of Bexoveld and its metabolites are below the limit of quantification in cereal grains, with low commercial application rates ranging from 7.5 to 10 gallic acid equivalent per hectare.
“Corteva intends to bring the product to the market as soon as possible,” Morell said.
“However, we need to accomplish the appropriate registration and regulatory authority milestones, as well as complete field testing.”
