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Crop Protection Grassland

Whelehan Crop Protection Grassland Newsletter

 

With the welcome return of some rainfall to many parts of the country, there's still plenty of the growing season ahead, so now is the time to start thinking about autumn weed control.

Taking action at the right time can help young reseeds that were sown in recent weeks get established quickly, reduce weed competition and protect the investment you've made in grass and clover. With more farms incorporating clover into reseeding programmes, choosing the right herbicide has never been more important.

 

Protect New Reseeds with ProClova® XL

Young reseeds need every opportunity to establish before winter. Left unchecked, weeds such as docks and chickweed can quickly compete with emerging grass plants, reducing establishment and overall productivity.

ProClova® XL offers excellent broad-spectrum weed control while remaining safe on clover, making it an ideal choice where clover is part of the reseeding programme.

Why choose ProClova® XL?

✅ Clover-safe in new leys

✅ Rainfast in just one hour, providing greater flexibility when weather windows are tight

✅ Controls docks, chickweed, redshank, fathen and many more broad-leaved weeds

✅ Supplied as a convenient co-pack treating up to 3ha in new leys

👉 Learn more about ProClova® XL

 

 

Dealing with larger weeds in newly sown leys

When seedling weeds have progressed beyond the optimum growth stage for treatment, or where docks are re-establishing from root fragments rather than seed, consider using the higher established grassland rate of ProClova XL. Established grassland is defined as having more than 90% ground cover or being over one year old, whichever occurs first.

Many summer reseeds were not sprayed during the drought period, as seedling grasses and clover were struggling to germinate and establish. However, many deep-rooted weeds continued to grow and may now be larger than the optimum treatment stage.

With rainfall having returned, these fields should be targeted for treatment to eliminate weeds before winter. Chickweed will continue to thrive throughout the winter period and, in some cases, can smother new seedlings if left uncontrolled.

Similarly, docks left untreated will begin to develop a deep taproots, making them more difficult to control in subsequent years, particularly in clover-rich swards.

 

ProClova XL is the ideal product of choice this autumn.

 
 
 

Deciding when to ‘spray or delay’ with ProClova XL

✅ Do not spray if grasses have fewer than 3 true leaves or clover has fewer than 3 trifoliate leaves.
✅ Do not spray if rain is imminent (rainfast within 1 hour).

 

✅ Do not spray if air temperatures during the 3 days before or 3 days after the intended spray date are likely to be below 8°C. This is important to ensure optimum product performance and clover recovery following application of ProClova XL.

 
 
 

 

Controlling docks in the Autumn

There is still an opportunity to control docks in grazing swards this autumn and benefit from improved grass utilisation and animal performance for the remainder of the grazing season, as well as into next year.

 

Opportunities to spray weed-infested swards following first-cut silage were limited this year. However, over the coming weeks, conditions may be suitable for treatment with a translocated herbicide.

Where docks are the dominant weed, DoxstarPro is the proven solution. Research trials and practical farm experience have consistently demonstrated its ability to provide long-term dock control. As a translocated herbicide, DoxstarPro moves throughout the plant, ensuring the active ingredient reaches the extensive root system, which can extend to depths of up to one metre.

 

Autumn applications have consistently delivered excellent levels of root kill. At this time of year, docks are actively transporting nutrient reserves from the leaves down into the root system in preparation for winter. This natural movement also helps carry the herbicide deep into the roots, resulting in more effective long-term control.

 

 

During the drought period, while grass struggled to grow, many deep-rooted weeds like docks continued to grow due to their deep taproots. These docks can be controlled in the coming weeks as the grass recovers from the drought stress.