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GENERAL INFORMATION
ACOLNIS is a foliar acting grass-weed killer for the control of wild oats, Italian ryegrass 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 1’. ACOLNIS also controls blackgrass in winter and spring barley as part of an integrated control strategy.

RESISTANCE MANAGEMENT
This product contains pinoxaden which is an ACCase inhibitor, also classified by the
Herbicide Resistance Action Committee as ‘Group 1’.
Use only as part of a resistance management strategy that includes cultural methods of control and does not use ACCase inhibitors as the sole chemical method of grassweed control.
Applying a second product containing an ACCase inhibitor to a crop will increase the risk of resistance development; only use a second ACCase inhibitor to control different weeds at a different timing.

Strains of some annual grasses (e.g. black-grass, wild-oats, and Italian rye-grass) have developed resistance to herbicides which may lead to poor control. A strategy for preventing and managing such resistance should be adopted. Guidelines have been produced by the Weed Resistance Action Group and copies are available from AHDB,
CPA, your distributor, crop advisor or product manufacturer.
Key aspects of the ACOLNIS resistance management strategy are:
• Always follow WRAG guidelines for preventing and managing herbicide resistant grass weeds.
• Do not use ACOLNIS or any other ACCase inhibitor as the sole means of grass weed control in successive crops.
• Use grassweed herbicides with different modes of action throughout the cropping rotation.
• To reduce the risk of developing resistance, applications should be made to young, actively growing weeds.
• Use tank/product mixes or sequences of herbicides with different modes of action within individual crops, or successive crops.
• Monitor weed control effectiveness and investigate any odd patches of poor grass weed control. If unexplained, contact your agronomist who may consider a resistance test appropriate.
• Use crop rotation and other cultural control measures to prevent and manage herbicide resistant grass weeds.
• Only apply ACOLNIS once per crop.
• Where resistant biotypes are present control from ACOLNIS will be unacceptable.
ACOLNIS has no residual activity. Optimum weed control will only be achieved when all grass weeds have emerged.
The activity of ACOLNIS is not affected by soil type, organic matter or straw residues.
ACOLNIS does not control broad-leaved weeds and if these are present a specific broad-leaved weed herbicide will be required.
ACOLNIS is not recommended for the control of black grass in winter or spring wheat.

CROP SPECIFIC INFORMATION
Crops
ACOLNIS 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 (GS 41) of the crop.
Spraying should be done when the majority of weeds have germinated, but before
weed competition reduces yield.

Rates of use
Apply ACOLNIS at 0.55 - 1.1 litres per hectare. The dose rate of ACOLNIS 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 ACOLNIS from 1st leaf unfolded to flag leaf ligule visible.
Italian rye-grass and perennial rye-grass (from seed) – apply 0.82 litres per hectare ACOLNIS 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 – apply 1.1 litres per hectare ACOLNIS 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 blackgrass and as part of an integrated weed control programme. Where resistant biotypes are present control from ACOLNIS 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 ACOLNIS, 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 ACOLNIS 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 ACOLNIS 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.