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Metazachlor Matters

The Metazachlor Matters campaign encourages advisers and farmers to find out if land is in a high-risk safeguard zone for the active, at www.wiyby.co.uk and promotes how good agronomic practice also benefits stewardship.

The stewardship guidelines are a reaction to the pressures resulting from the implementation of the Water Framework Directive and are designed to curb the frequency and magnitude of metazachlor exceedances in water bodies.

This primarily occurs through surface run-off or field drainage after treatment. In line with current metazachlor labels, the maximum dose rate is 750g of ai/ha.

The key timing advice is to establish an oilseed rape crop in a timely manner and apply the herbicide as early as possible.

Planting should be completed by the end of August and the best timing for metazachlor is pre to early post emergence of the crop and weeds.

This is particularly important on drained soils and those drained areas in safeguard zones which are higher risk.



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