An alternative post-emergence herbicide for use in a wide range of broad leaved crops including beans, peas, and potatoes has been introduced by Interfarm UK.

Containing bentazone formulated as a 480 g/l soluble concentrate, Troy is said to deliver post-emergence contact broad-leaved weed control in dwarf French beans, runner beans, broad beans, navy beans, winter and spring field beans, combining peas, vining peas, linseed, narcissi and potatoes. It is active on a wide range of broad-leaved weeds including charlock, chickweed, cleavers, cranesbill, fool’s parsley, shepherd’s purse and spurrey, according to Dr David Stormonth, technical manager at Interfarm UK.

This is the last year for many popular pulse herbicides such as simazine, products containing terbutryn or fomesafen, and also for cyanazine, the firm pointed out. Bentazone, as in Troy, is fast becoming one of the few true post-emergence herbicides available in the pea and bean sector. It has been included in the Annex 1 positive list of the EC review.

Troy is a contact herbicide in the diazinone group. It is absorbed by the foliage and not translocated. Best results from this herbicide will be obtained when sprayed in warm growing conditions, when weeds are small and actively growing. The first spray should be when weeds are at the cotyledon stage and the second spray seven to 10 days after the first treatment.

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