United Kingdom

Early action on cleavers could save £200 a hectare

UK - April 20, 2010

Treating crops for cleavers earlier rather than later could reduce losses by anything up to £200/ha, according to Dow AgroSciences.

“Our research has shown that the difference between treating at GS30 or GS39 is anything up to 2.6 t/ha,” says Dow’s technical expert Stuart Jackson “Our calculations used an average yield reduction of 2.2 t/ha and a price of £92/t, but depending on the price of wheat the money lost could be even greater.

“Once weeds are actively growing, even when small, they are competing with the crop for light and nutrients. So our advice is that it pays to spray them early.

“While the daytime temperature has increased considerably recently, we are still experiencing very cold nights, and that is one of the reasons why Starane XL (florasulam and fluroxypyr) is the product of choice for cereals. It provides robust control of cleavers and other weeds even when it is warm and sunny during the day, and close to freezing at night.”

Cleavers cause such heavy losses because they are seven times more competitive than blackgrass, and three times as competitive as wild oats.

As well as robust control of cleavers, it also controls a range of other weeds including mayweeds, chickweed, volunteer oilseed rape and other brassica weeds.

Starane XL can be tank mixed with a wide range of products including growth regulators, fungicides, and insecticides.