OlupalPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

GENERAL INFORMATION

OLUPAL is a foliar acting grass-weed killer for the control of wild oats, Italian rye-grass and perennial rye-grass (from seed) in winter and spring wheat and winter and spring barley. It is an ACCase inhibitor, also classified by the Herbicide Resistance Action Committee as ‘Group A’. OLUPAL can contribute to the control of blackgrass in winter and spring barley as part of an integrated control strategy.

CROP SPECIFIC INFORMATION
Crops
OLUPAL can be used on all varieties of winter and spring wheat and winter and spring barley.

Timing
Spray after 1st February to before flag leaf sheath extending stage (GS41) of the crop.
Spraying should be done when the majority of weeds have germinated, but before weed competition reduces yield.

Rates of use
Apply OLUPAL at 0.5 - 1.1 litres per hectare. The dose rate of OLUPAL depends on target grass species and season.

WEED CONTROL
Winter and spring wheat and winter and spring barley
Wild oats – apply 0.82 litres per hectare OLUPAL from 1st leaf unfolded to flag leaf ligule visible.
Italian rye-grass and perennial rye-grass (from seed) – apply 0.82 litres per hectare OLUPAL from 1st leaf unfolded to flag leaf ligule visible. Where applications are made to ryegrasses no larger than the 2 tiller stage (GS22) a dose of 0.55 litres per hectare may give acceptable levels of control. Always use as part of a weed control programme including other products active against ryegrasses.
Winter and spring barley
Black grass – as part of an integrated control strategy – apply 1.1 litres per hectare OLUPAL after 1st February up to the 7 tiller stage (GS27). Always use in sequence with other products with different modes of action that are active against black grass and as part of an integrated weed control programme. Where resistant biotypes are present control will be unacceptable.

FOLLOWING CROPS
There are no restrictions on succeeding crops in a normal rotation. In the event of a crop failure after application of OLUPAL, 4 weeks should elapse after application before ryegrass, maize, oats or broad-leaved crops are planted as replacement crops.

MIXING AND SPRAYING
Mixing Procedure
Make sure the sprayer is set to give an even application at the correct volume. Fill the spray tank with half the required volume of water and begin agitation. Add the required amount of OLUPAL to the spray tank and mix thoroughly. Add the rest of the water and continue to agitate until spraying operation is complete.

Spray Quality
Apply OLUPAL using a conventional fan nozzle producing a spray quality at the finer end of the medium range as defined by the British Crop Protection Council. A spray pressure of 2-3 bars is recommended.

Spray Volume
Spray OLUPAL in 100 - 400 litres of water per hectare.