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Weeds, when established, can greatly reduce the performance of a grass sward and research has shown that every 1% infestation of weeds (like docks or chickweed) can result in a 1% reduction in grass yields. So, controlling weeds in newly sown leys is critical to the establishment and performance of new sward. However this can be difficult when weeds like docks and chickweed are present.

Pastor Trio, represents a major advance for weed control in reseeded pasture. Containing the powerful active ingredient florasulam, Pastor Trio is imbued with the most advanced technology in weed control.

It also contains the two tried and tested ingredients fluroxypyr and clopyralid.  The cocktail of these three powerful ingredients with different modes of action ensures a very wide spectrum of weed control in reseeded pasture.

PastorTrio is especially powerful on docks and chickweed, two major weed hazards in reseeded pasture.  It is equally effective on thistles, dandelions, buttercups, redshank, fat hen, charlock, mayweed and fumitory.   

Common chickweed if uncontrolled can totally smother out the new grass seedling which results in patchy swards afterwards.

Common chickweed if uncontrolled can totally smother out the new grass seedling which results in patchy swards afterwards.


Many Reseeded pastures in recent weeks have shown a very high infestation of weeds. Docks appear to be coming through in big numbers. Pastor Trio provides the perfect opportunity to kill docks at the seedling stage.  If uncontrolled, dock roots can grow to a meter deep and can devastate grass yields.  Hitting them early is imperative.

Chickweed if left uncontrolled can effectively smothered the grass. If this is not tackled now early on, the reseed next autumn and beyond will be very patchy at best. Common chickweed causes the biggest problems but mouse eared chickweed can also be a problem.

Thistles, especially the spear thistle, appear to be a much bigger problem in recent years in newly sown pastures. Dandelions and buttercups, even in fields that were burned off before reseeding can become a major problem. These tend to be worse where reseeds are direct drilled or power harrowed instead of using the traditional ploughing method.

Pastor TrioPastor Trio will give great control of all of these. It should be applied at one litre/ha in 200 litres of water from the third leaf visible stage of the grass.  It can be applied up to 31 August.


Pastor Trio is also approved as a post-emergent spray in maize.  As well as controlling all the weeds listed above, it is also highly effective on black nightshade, field bindweed and black bindweed.

It should be applied at one litre/ha between the three and six leaf stage of the crop and before the maize is over 20cm tall.

For brochure and further information about Pastor Trio CLICK HERE