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Pasture & Brushweeds

Delivering a complete suite of crop protection solutions for today’s farmers.

We combine our world class global research pipeline with our local understanding of pasture production to develop, launch and deliver to market an innovative portfolio of products meeting the needs of the New Zealand farmer. 

Our pasture and brushweed portfolio includes product options that provide a solution for most scenarios typically encountered in New Zealand’s landscape.

Featured Products

Our portfolio of powerful, proven products covers crop protection herbicides to control docks, thistles, gorse as well as other broad-leaved and brush weeds.

Optimising your Pasture Production

We've developed a pasture protection portfolio specfically for New Zealand farmers; a portfolio which provides a solution for every situation and ensures they can produce a high-quality crop, maximise on-farm returns, and protect their livelihoods for generations to come.

New Pasture Weed Control

Download our selection chart to find the best products to target the problem weeds in your new or established pastures.

Brushweed Control

The control of Brushweeds is a regular expense item on most pastoral properties.  Although the control of Brushweeds is synonymous with use of herbicides, other farm management practices play an important part in a successful overall programme.

The use of herbicides is only one part of the programme and the failure to carry out complementary farm management practices can result in limited progress.

Methods of Application

The most suitable application method at a particular site will be determined by factors such as topography.  Weed size, accessibility, availability of water and spray equipment.  Aerial application is the most cost effective method on solid blocks of gorse in hill country or other areas where ground access is difficult.

Aerial spraying, particularly in hill country, is a skilled operation and spray needs to be released close to the target to get the maximum amount of herbicide on the bushes and reduce off-target drift of spray droplets to a minimum.

Brushgun treatment is most suitable for treating scattered infestations, particularly when bushes are up to two metres high.

Motorized Knapsacks are most efficient for treating scattered bushes less than one metre high on steeper hill country where access is more difficult and water is not readily available. 

Where only a few isolated bushes occur either cutting the stems at ground level and immediately swabbing the stumps or spraying the base of the stems can be the most cost effective method.

Application Technique

Ground applications should be made from all directions to full cover both foliage and stems.  Do not use gun spraying pressures of less than 1000kPa or greater than 2000kPa.

In large dense patches of gorse where full coverage is difficult to achieve it is more practicable to leave the centre unsprayed and treat the following year when the bushes on the perimeter have broken down.

For aerial application it is recommended that the herbicide be applied in 400 litres of water per hectare using the half overlap-opposite pass technique.  Best results from aerial treatment are achieved on gorse less than 2 metres high which have stems of less than 3cm diameter.

If gorse is larger than this, consideration should be given to desiccating and burning.

Tordon Weed Control Products

Discover our Tordon range of weed control products by downloading our handy weed reference chart.