Herbicide pendimethalin gains off-label approval

The Horticultural Development Company has gained a specific off-label approval for pendimethalin, marketed as Stomp Aqua.

The herbicide is designed for use against weeds in outdoor ornamentals, outdoor hops, outdoor top fruit, Miscanthus, protected forest nursery and outdoor forest nursery.

Pendimethalin is now included on annex 1 to directive 91/414/EC and the new formulation was introduced by BASF, with the first label recommendations introduced this year on a wide range of crops.

The maximum number of treatments per year for each crop is one, apart from protected forest nursery, for which there is no limit. In each case, the maximum individual dose is 2.9 litres/ha, or 3.3 litres/ha for crops for game cover.

Pendimethalin is a mainly residual soil-acting herbicide for the control of polygonums, especially knot- grass, annual meadow grass and a wide range of broad-leaved weeds including chickweek, orache, poppy, fat-hen, field pansy, small nettle, red dead nettle, speedwells and shepherd's purse. Volunteer oilseed rape, black-nightshade and mayweeds are moderately susceptible.

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