Barley Barley Crop Icon Brassicas Brassicas Crop Icon Sugar Beet Sugar Beet Carrots Carrots Icon Leeks Leek Icon Maize Maize Icon Oilseed Oilseed Icon Onions Onions Icon Other Cereals Other Cereals Icon O R T Peas And Beans Peas and beans Icon Potatoes Potatoes Icon Salad Crops Salad Crops Icon Soft Fruits Crops Soft Fruits Icon Top Fruits Crops Top Fruits Icon Wheat Crops Wheat Icon Calendar Calendar icon Arrow Next Arrow Previous Close Checkmark

Kill black-grass pre-harvest (press release)

Cambridge, 25th July 2012

The sudden weather turnaround has given beleaguered growers an unexpected
opportunity to tackle this year’s black-grass populations before all viable seeds have

Just a few days’ sun has been enough to highlight just how far behind normal growth
stages black-grass is this year, advises Bayer CropScience, creating the ideal scenario
for control with pre-harvest applications of glyphosate.

“Unusually, black-grass is green in many crops,” points out Bayer’s Chris Cooksley.
“Crucially, this means it’s still photosynthesising and transport systems within the plant will
be active. An application of glyphosate will not only take out these plants, but also render
unviable any seeds that are still attached and taking nutrients.”

Despite the warmer temperatures, the base of many crops remains damp and soil
moisture levels are perfect for black-grass germinations, Mr Cooksley notes. “So a timely
application of glyphosate that penetrates the crop canopy could also take out any early

“This is an unexpected chance to effect a firm reduction in seed bank numbers ahead of
the autumn campaign,” Mr Cooksley says. “Take these opportunities while they remain,
as anything you can do now will greatly reduce the pressure on your pre- and post-em
treatments in the new season crop.”

Mr Cooksley reminds growers that applications can only be applied up to 30% grain
moisture and should not be applied to seed crops.

Chris Cooksley, Tel. no: 01223 226615
Whisper PR, Natalie Reed, Tel no: 01608 637805
Find more information at
About Bayer CropScience
Bayer is a global enterprise with core competencies in the fields of health care, nutrition and high-tech materials. Bayer
CropScience, a subgroup of Bayer AG with annual sales of EUR 7.255 billion (2011), is one of the world’s leading
innovative crop science companies in the areas of crop protection, non-agricultural pest control, seeds and traits. The
company offers an outstanding range of products and extensive service backup for modern, sustainable agriculture and
for non-agricultural applications. Bayer CropScience has a global workforce of 21,000 and is represented in more than
120 countries. This and further news is available at:
Forward-Looking Statements
This release may contain forward-looking statements based on current assumptions and forecasts made by Bayer
Group or subgroup management. Various known and unknown risks, uncertainties and other factors could lead to
material differences between the actual future results, financial situation, development or performance of the company
and the estimates given here. These factors include those discussed in Bayer’s public reports which are available on
the Bayer website at The company assumes no liability whatsoever to update these forward-looking
statements or to conform them to future events or developments.