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- Herbicide for professional use
- Controls against docks, thistles, nettles, chickweed, buttercups, ragwort and dandelions
- Rate: 2.0
- AI per Hectare: 60g Aminopyralid and 200g Fluroxypyr
- Ha's per pack: 2.5ha (6.25ac)
**Please note that due to regulatory requirements, when purchasing Halcyon, you will be asked to provide a valid herd, flock, or PU (Professional User) number. This information should be inserted into the delivery instructions after purchase to ensure the product can be dispatched to you**
Halcyon 5L is a herbicide specifically designed for professional use. It is highly effective in controlling a wide range of weeds commonly found in cattle and sheep-grazed grassland. The product is formulated to provide long-term control of weeds such as docks, thistles, nettles, chickweed, buttercups, ragwort, and dandelions.
Halcyon offers several advantages that make it a preferred choice for weed control in grassland:
- Long-term dock control: Halcyon is particularly effective in controlling docks, ensuring a sustained reduction in their presence over an extended period.
- Wide weed spectrum: It targets a broad range of common weeds, including thistles, nettles, buttercups, chickweed, dandelions, and ragwort. This comprehensive control helps maintain a healthy and weed-free grazing environment.
- Ideal for cattle and sheep grazed grassland: Halcyon has been formulated to be the best available weed control solution in grassland areas where cattle and/or sheep are grazed. By effectively managing weeds, it helps improve the overall quality and productivity of the grazing land.
- Suitable for silage ground: In addition to grazed grassland, Halcyon can also be used on silage ground after the final cut of the year. This allows for effective weed control and prepares the land for the next season's growth.
- Root movement for long-term control: Halcyon is designed to move to the roots of weeds, ensuring high levels of long-term control. This feature helps prevent weed regrowth and reduces the need for frequent applications.
- Excellent grass safety: While providing effective weed control, Halcyon is formulated to have minimal impact on grass growth. It is designed to protect and preserve the health of grass, enabling it to thrive alongside weed suppression.
When using Halcyon, it is important to adhere to the recommended application rates. The concentration of active ingredients in Halcyon is 30g Aminopyralid and 100g Fluroxypyr per litre of the product. The recommended application rate is 2.0 AI (Active Ingredient) per hectare, which translates to 60g Aminopyralid and 200g Fluroxypyr per hectare.
Each pack of Halcyon 5L covers an area of 2.5 hectares (6.25 acres) and is suitable for professional use.
PRODUCT SPECIFICATIONS
| WEIGHT : | 5.000 KG |
DELIVERY & RETURNS
Please be advised that we are currently experiencing delivery delays due to unforeseen circumstances within the courier network. Please allow 5-6 working days for delivery. We apologise for any inconvenience.
DELIVERY INFORMATION:
- Standard parcel delivery: 2-4 working days
- Bulky pallet delivery: 4-7 working days (kerbside delivery only)
- Animal feed delivery: 3-5 working days
- Republic of Ireland delivery only
- Read our full delivery policy here
| DELIVERY TYPE | DELIVERY COST | COURIER | DELIVERY TIME |
|---|---|---|---|
| Standard parcel | €5 | ![]() |
2-4 working days |
| Oversized parcel | €5 | ![]() |
2-4 working days |
| Hazardous items | €10-€40 | ![]() |
4-7 working days |
| Bulky pallet | €40 | ![]() |
4-7 working days |
RETURNS INFORMATION:
- Read our full returns policy here.
- Customers are entitled to a 14-day cooling-off period. Goods can be returned within this timeframe, items must not have been used and in saleable condition with packaging intact where applicable.
- The cost of returning the goods will be charged to the customer for change-of-mind returns.



Halcyon 5L (Forefront)
€ 276.45
€285.00You save € 8.55
Halcyon 5L is a herbicide specifically designed for professional use. It is highly effective in controlling a wide range of weeds commonly found in cattle and sheep-grazed grassland.
The product is formulated to provide long-term control of weeds such as docks, thistles, nettles, chickweed, buttercups, ragwort, and dandelions.
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Subject to stock availability, we aim to ensure click and reserve orders are available for collection from your nominated branch within 3 hours of our email confirming your reservation. If travelling large distance, we advise to please call the selected branch to make sure stock is reserved for you without issue. Please check your selected stores trading hours as these may vary. Click and collect terms and conditions.