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Leystar®
Herbicide
Leystar® is a selective herbicide for use in newly sown leys, established grassland, grass for seed, forage maize, cereals and cereals under/sown with grass.
Leystar is much valued by grassland farmers for its wide weed spectrum, including chickweed, seedling docks and thistles and for its good grass safety when used on newly sown leys. Leystar can also be used in maize and grass grown for seed.
For more information download our FREE Forage App. Available to download from the App Store or Google play now.
Or call our Technical hotline: 0800 689 8899 or e-mail: ukhotline@corteva.com
Benefits
Translocated to the roots
All three of Leystar's actives deliver effective translocation for wide spectrum weed control
Safety
Good grass safety
Wide spectrum weed control
Wide spectrum weed control of weeds including chickweed, mayweeds, seedling docks and thistles
Pack size
Leystar comes in a small, handy pack which treats 2 ha / 5 acres at 1.0 L/ha
Application Advice
Grass
- For best results apply to weeds which are small and actively growing
- Broad-leaved weeds not present at application will not be controlled
- Allow an interval of 4 weeks after application before cutting grass to optimise the effect of the herbicide
- Do not use on grassland that will be cut for animal feed, fodder or bedding nor for mulching or composting within 12 months of treatment
- Do not roll or harrow grass for 10 days before or 7 days after application
- Do not spray where clover or other legumes are a valuable constituent of the sward
- Grass seed can be stitched in 1 month after application
- Clover can be stitched in 3 months after application
- Grazing can resume just 7 days after application - this may need to be longer if foliage of poisonous weeds such as ragwort is present
- To avoid subsequent injury to crops other than grassland and cereals, all spraying equipment must be thoroughly cleaned using All Clear Extra spray cleaner.
Maize
- Apply when maize is between 3-6 leaf stage, and before the crop is over 20 cm tall. Do not apply once the buttress roots have started to develop on the first node.
- Crops that can be sown in the year of treatment with Leystar to forage maize include:
- Cereals, oilseed rape, grass and vegetable brassicas as transplants
- To protect surface water, do not apply to maize before 10th April
- To avoid subsequent injury to crops other than grassland and cereals, all spraying equipment must be thoroughly cleaned using All Clear Extra spray cleaner
- Tank mixes are not supported on maize.
Cereals and cereals under sown with grass
- Leystar can be applied in the spring on all varieties of winter and spring cereals
- Applications should be made from 1st February once the crop has reached 3 leaves.
Need more information?
If you have a question, or would like to learn more about Leystar application, check out our helpful resources:
Technical Hotline
FREE Forage App
For more information download our FREE Forage App. Available to download from the App Store or Google play now.
Crops of Use
You can view a comprehesive list of Leystar crops and controls in the technical specification sheet.
Grass
For Seed (Gramineae)
Established
New sown ley
Maize
Cereals
Winter
Spring
Technical Specifications
Leystar® | |
|---|---|
| Product Registration Number | MAPP 19938 |
| Active Ingredient | 100 g/litre fluroxypyr + 80 g/litre clopyralid + 2.5 g/litre florasulam |
| Pack Size | 2.0 Litres |
| Formulation | Emulsifiable Concentrate |
| Maximum Individual Dose | 1.0 L/ha newly sown leys, grass for seed, maize, cereals and cereals under sown with grass 2.0 L/ha established grass |
| Maximum Total Dose | 1.0 L/ha newly sown leys, grass for seed, maize, cereals and cereals under sown with grass (one application per year) 2.0 L/ha established grass (one application per year) |
| Latest Timing | 1st February to 30th September for grass for seed 1st February to 31st August for newly sown leys 10th April to 30th June (BBCH 13 – 16) for maize 1st February to before GS39 for winter sown cereals (wheat, barley, rye, triticale, spelt), these cereals undersown with grass 1st February to GS39 for spring sown cereals (wheat, barley, rye, Durum wheat), these cereals undersown with grass 1st February to GS31 for winter and spring oats, oats undersown with grass |
| Water Volumes | 200 L/ha newly sown leys and maize 80-250 L/ha cereals and under sown cereals |
| Spray Quality | MEDIUM as defined by BCPC |
| LERAP | B |
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