Larke - 10ltr - 750g MCPA

A soluble concentrate containing 750 g/l (63.6% w/w) MCPA as the dimethylamine salt.
A selective herbicide for the control of many broadleaved weeds in cereals and grassland.
 
PRODUCT BENEFITS
Use up to before GS 41 in winter wheat for late control of weeds.
A different mode of action to the ALS inhibitor group of products. A useful tool for resistance management.
No following crop restrictions.
Controls difficult weeds such as Fat hen, Charlock, Corn buttercup, Thistles and Poppy.
Broad spectrum of weed control in grassland.
An ideal mixer product for use in spring and winter cereals.
LERAP category: B
Pack size: 10 litres
Storage: PROTECT FROM FROST
 
Other specific restrictions:
This product qualifies for inclusion within the Local Environment Risk Assessment for Pesticides (LERAP) scheme. Before each spraying operation from a horizontal boom sprayer, either a LERAP must be carried out in accordance with CRD published guidance or the statutory buffer zone must be maintained. The results of the LERAP must be recorded and kept available for three years.
Do not apply by hand-held equipment.
Extreme care must be taken to avoid spray drift onto non-crop plants outside the target area.
Livestock must be kept out of treated areas until poisonous weeds such as Ragwort have died and become unpalatable.
This product must not be applied before the end of February in the year of harvest.
Do not apply in volumes less than 200 litres of water per hectare.
 
DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product.
 
RESTRICTIONS
DO NOT roll or harrow within a week of spraying.
DO NOT mow within four days of application.
DO NOT treat newly established grass less than one year old.
DO NOT treat grass suffering from drought, disease, during freezing conditions when rain is imminent or other adverse factors.
Extreme care must be taken to avoid spray drift onto non-crop plants outside of the target area.
DO NOT spray in windy weather, avoid drift on to neighbouring crops, especially beans, beet, brassicas, carrots, legumes, lettuce and tomatoes which are very susceptible.
DO NOT apply before undersowing.
WASH EQUIPMENT thoroughly immediately after use. Rinse with water three times, drain and allow to dry. Traces of herbicide left in the sprayer may damage susceptible crops if these are subsequently sprayed using the same equipment.
DO NOT apply in volumes less than 200 litres of water per hectare.
 
CROP SPECIFIC INFORMATION
Always spray when the crop is actively growing.
Winter wheat
All varieties of winter wheat may be treated.
Dose
0.9 to 2.2 l/ha (see ‘Weed Susceptibility’ table).
Maximum total dose
2.2 l/ha.
Timing
Apply in the spring from the leaf sheath erect stage to before flag leaf sheath extending stage (GS 41). Application under very hot conditions can cause ear damage if the crop comes under stress after application.
Water volume
Apply in 200–400 litres of water per hectare.
Spring wheat and winter and spring barley, oats and rye
Dose
0.9–2.2 l/ha (see ‘Weed Susceptibility’ table).
Maximum total dose
2.2 l/ha.
Timing
For all cereals apply in the spring before first node detectable stages (GS 31).
WINTER BARLEY, OATS AND RYE: Spray in the spring from the leaf sheath erect stage.
SPRING WHEAT, BARLEY AND RYE: Spray after the crop has developed five fully expanded leaves.
SPRING OATS: Spray after the crop has developed one fully expanded leaf.
Application under very hot conditions at later timings can cause ear damage if the crop comes under stress after application.
Barley is particularly subject to malformation and particular attention must be paid to the correct growth stage if this crop is intended for malting.
All varieties of spring wheat, barley, oats and rye may be treated.
Water volume
Apply in 200–400 litres of water per hectare.
Undersown cereals
Do not apply to cereals undersown with lucerne, peas or safoin.
Red clover
Dose
0.9 l/ha.
Maximum total dose
0.9 l/ha.
Timing
Application should be made when the red clover has at least two trifoliate leaves, and the cereal crop is at the correct growth stage, as listed above. Only apply if the weed canopy is dense and covers most of the clover seedlings. Some damage to red clover must be expected, but this will normally be out-grown. Do not apply if white clover is present.
Grasses
Dose
1.8 l/ha.
Maximum total dose
1.8 l/ha.
Timing
Application should be made when the grasses have begun to tiller, and the cereal crop is at the correct growth stage, as listed above.
Water volume
Apply in 200–400 litres of water per hectare.
Grassland
Dose
1.8–2.2 l/ha.
Maximum total dose
4.4 l/ha.
Timing
Use on established grassland and leys no less than one year old. Apply LARKE in spring and summer when growing conditions are favorable. Spray grass for hay or silage three–four weeks before cutting. Clover may be checked but recovers by the following Spring. Follow-up applications may also be needed where new seedling weeds appear. An interval of four–six weeks should elapse between successive applications if weeds persist.
A top dressing ten days before treatment is recommended to assist kill of weeds and subsequent recovery of the sward. Annual weed species will be best controlled if spraying is done while the majority of weeds are seedlings. Perennial weeds should be sprayed during their period of maximum growth, usually when the flower buds are beginning to form. The response of perennial weeds to treatments are often variable with only the aerial parts killed, though often suppression will occur. The recovery of the weeds will be reduced if the grass is growing vigorously at the time of treatment.
Water volume
Apply in 200–400 litres of water per hectare.
Grassland (seed crops)
Dose
2.1 l/ha.
Maximum total dose
2.1 l/ha.
Timing
The safe period for treatment occurs when the grasses have at least four leaves and have begun to tiller but at least five weeks preceding ear emergence. The best time varies according to the species and strain of grass concerned. Do not apply more than 2.1 l/ha of LARKE.
Water volume
Apply in 200–400 litres of water per hectare.
 
MIXING AND SPRAYING
Half-fill the tank with clean water and add the required quantity of LARKE, and add the remainder of the clean water with gently agitation which should continue until the contents are thoroughly mixed. Spray using a MEDIUM/COARSE spray (BCPC).
 
Tank cleaning
WASH EQUIPMENT thoroughly immediately after use. Rinse with water three times, drain and allow to dry. Traces of herbicide left in the sprayer may damage susceptible crops if these are subsequently sprayed using the same equipment.
 
COMPATIBILITY
LARKE can be tank-mixed with other pesticides, please consult your Nufarm distributor or Nufarm UK Limited.
 
RESISTANCE MANAGEMENT
When herbicides with the same mode of action are used repeatedly over several years in the same field, selection of resistant biotypes can take place. These can propagate and may become dominating. A weed species is considered to be resistant to a herbicide if it survives a correctly applied treatment at the recommended dose. A strategy for preventing and managing such resistance should be adopted. This should include integrating herbicides with a programme of cultural control measures. Guidelines have been produced by the Weed Resistance Action Group and copies are available from the HGCA, CPA, your distributor, crop adviser or product manufacturer

HSE