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Bromoxynil not a direct replacement for Totril

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With the loss of the herbicide Totril on 31 August 2016 many onion growers are considering using bromoxynil which has recently been approved for use in the crop. However Andy Richardson of Allium & Brassica Agronomy warned that it could not be used as a straight replacement.

Growers need to consider the different label recommendations of the two products containing bromoxynil (Butryflow SC and Buctril EC) he warned. One reason is that due to the higher risk of crop scorch compared to ioxynil (Totril) and its SC formulation, Butraflow cannot be applied to set crops. It also has a timing restriction and can only be used between 1 May and 30 September, so may be unsuitable for early crops. Buctril currently has no such restrictions.

“We’ve been looking at both products and we’ve been looking at Buctril since 2010. Based on our trials Buctril may be more useful to onion growers than Butryflow),” explained Andy.

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