The following piece is from our sister publication, Germination.
BASF has issued an urgent notice to its grower customers warning of a high degree of risk of injury for sensitive crops in 2022, such as canola, durum wheat and canary seed, due to possible herbicide carryover caused by this year’s drought.
“We all know that certain environmental conditions can delay the breakdown of herbicide residues in soil. But this year is different,” the company says in its notice.
“Our research shows that in seasons where there has not been an adequate amount of rainfall throughout the season to facilitate herbicide breakdown in the soil, injury to more sensitive rotational crops is likely to occur.”
With current environmental records showing rainfall below this threshold for many parts of Western Canada, BASF is making the following agronomic recommendations in addition to the current rotational crop recommendations on its imidazoline based herbicide labels:
Growers who farm in the dark brown, black, grey or grey wooded soil zones who have received less than 125 mm of accumulated rainfall between June 1 and Sept. 1, 2021:
- If you applied Solo ADV, Solo Ultra or Viper ADV in 2021 you should NOT plant canola, durum wheat or canary seed in 2022
- If you applied Odyssey NXT, Odyssey Ultra or Odyssey Ultra NXT in 2021 you should NOT plant durum wheat or canary seed in 2022
- If you applied Odyssey NXT, Odyssey Ultra or Odyssey Ultra NXT in 2020 you should NOT plant canola in 2022
Growers who farm in the brown soil zone who have received less than 125 mm of accumulated rainfall between June 1 and Sept. 1, 2021 AND those who received less than 15 mm of rainfall in any of the months of June, July or August 2021 (regardless of total accumulated rainfall between June 1 and Sept. 1):
- If you applied Solo ADV, Solo Ultra or Viper ADV in 2021 you should NOT plant canola, durum wheat or canary seed in 2022
- If you applied Odyssey NXT, Odyssey Ultra or Odyssey Ultra NXT in 2021 you should NOT plant durum wheat or canary seed in 2022
- If you applied Odyssey NXT, Odyssey Ultra or Odyssey Ultra NXT in 2020 you should NOT plant canola in 2022
Due to the extreme risk of crop injury, BASF will not be supporting canola, durum wheat, and canary seed as follow crops in the 2022 season if these recommendations are not followed. The company also goes on to say the notice is the first in a series of communications coming over the next several weeks.
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