Whelehan Crop Protection

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Solutions for Weed-free pastures

Control weeds in pastures because they:

- Compete with grass for space, light, nutrients and water
- Are unpalatable to stock
- Can be poisonous e.g. ragwort or buttercup
- Take over the pasture and left unchecked limit ability to graze
- Can spread to neighbouring properties
- Make pastures look messy, untidy and unkempt.

Choose a product that:

• Will deliver a high level of safety so grass growth is unaffected
• Has a short stock exclusion period so animals can return back to the field quickly
• Fits the weed spectrum being targeted and the method of application.

Whelehan Crop Protection provide a wide range of weed control solutions depending on your individual requirement.

Weed Free pastures
Doxstar Pro Herbicide

Doxstar Pro

A concentrated formulation controlling all species of docks. Use on both grazing and silage ground. Very safe to grass.


Envy 3 Litre

Weed Control Solution in established pastures,
Horse or Pony Paddocks and New Sown Leys.

Forefront T

Forefront T 2 Litre

Weed Control in cattle & sheep grazed grassland controlling docks, nettles, buttercups and a range of other weeds.

Grazon Pro

Grazon Pro 1 Litre

Spot treatment for docks, nettles and thistles. The ideal spot treatment solution for a wide range of difficult to control weeds where safety to grass is important.

Pastor Trio Herbicide

Pastor Trio 3 Litre

Pastor Trio is a wider spectrum grassland herbicide giving excellent control of docks, thistles and buttercups.


Thistlex - 1 Litre

Excellent thistle control in silage fields, hay meadows and grazed pastures.

Weeds Controlled

Where we have knowledge of how our products might affect other grassland weeds we have detailed it in the following tables.
These are not recommendations; just an indication of what control might be achieved and where information is based on anecdotal or limited data, the user bears the risk in respect of failures concerning efficacy and phototoxicity.

Weed Control - Annual Weeds
Weed Control Perennial Weeds
Key points

- Read the label in full before use
- Target weeds at the right size – young and actively growing is best. If you have topped the weeds first then wait 2-3 weeks for sufficient weed regrowth before spraying
- Wear suitable protective clothing when spraying – gloves, coveralls and rubber boots
- Spray must be aimed away from the water courses
- Keep other people and pets out of treated areas for at least 2 hours until spray has dried on leaf
- When spraying is finished, clean out the tank, spray lines and nozzle, making sure the washings go on an untreated area. If the container is empty, rinse thoroughly 3 times with clean water and dispose of the rinsings on an untreated area
- Re-seed bare patches of soil where weeds have previously been
- Ragwort label guidance - where ragwort is present users should consult the Code of Practice on How to Prevent the Spread of Ragwort. Ragwort plants sprayed with this herbicide are more palatable and contain higher levels of toxins. Animals should be excluded from treated areas until any ragwort has completely recovered or died and there is no visible sign of the dead weed. Do not include treated ragwort in hay or silage crops.

Follow up treatments are sometimes needed:

- Not all weeds are at their ideal treatment size at the same time
- The visible weed above ground can be small compared with often extensive root systems below ground
- Large numbers of weeds can shade each other
- Grassland with large weed populations often holds higher levels of weed seed in the soil
- Removal of weeds can leave bare patches of ground ideal for further germination of weed seeds.

Corteva Agriscience grassland herbicides are professional use products

- which you can only use if you hold a relevant certificate of competence. Otherwise, seek training or employ a spray contractor or local suitably-qualified farmer to do the job for you.

Knapsack Control

Knapsack control works out more cost-effective if weed populations are below 5%
(count number of docks and/or thistles in a 5m x 7m area – this number gives the % weed population).