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

Defeat your biggest threat - black-grass - before it is too late

Post-em. close up

Tackle emerged black-grass populations when they’re most susceptible

When it comes to black-grass, every percent of control counts. When each black-grass head produces on average 100 seeds, smart choices can make a big difference to seed return.

Bayer’s new post-emergence herbicide, Monolith, can provide 10% uplift in black-grass control in the spring compared to Atlantis WG during the spring and is one small change to boost your black-grass control programme.

Visit our Monolith page to discover how you can improve your black-grass control this spring.

young wheat

Introducing Monolith

Monolith is a new post-emergence grass-weed herbicides from Bayer. It combines mesosulfuron - the grass-weed active ingredient from Atlantis with propoxycarbazone to create a new standard for post-emergence black-grass control for use in the spring.

The additional 10% uplift in black-grass control that Monolith can provide over Atlantis WG will help reduce the number of seeds returning to the seed-bank helping you keep on top of your black-grass population.

Learn more about our new post-emergence herbicide here.

monolith tractor sprayer

Top Tip 1

Following up with a post-emergent in autumn will press home the advantage on plants weakened by the pre-emergent.


Top Tip 2

Black-grass plants with enhanced metabolism type resistance (EMR) to Atlantis can still be susceptible at early growth stages.


Top Tip 3

The aim is to land the herbicide on a small target leaf, so a fine spray quality, low forward speed and low wind speed are essential to maximise deposition and uptake.


Top Tip 4

Sunny conditions stimulating active growth can contribute to product efficacy, consider spraying on bright dry winter days where both crop and weeds are clearly growing.


Top Tip 5

Winter kill has a big effect on final levels of control – monitor sick black-grass plants and check if the frost finishes them off.


How should we measure success in weed control?

Harry Strek explains why it is just as important to look at how many weed seeds are being returned to the soil, as well as overall weed biomass, when assessing the success of weed control programmes.


Why does every percent extra control matter in weed control programmes?

Harry Strek explains why every extra percent control in a weed control programme matters. Just a few percent can be the difference between having a much larger weed problem the following season or having a more manageable population to control.


How important are spring crops for weed control?

Harry Strek explains that the more spring crops you have in your rotation the better the chance of being able to control black-grass. 


Do farmers need to control weed patches more aggressively?

Harry Strek explains why managing weed patches aggressively in a field will help slow down the evolution of resistance in a field, reduce the chance of more mutations that confer resistance, and to reduce the number of weed seeds that are returned to the soil.


Talk to us

Contact one of our technical team for more information or advice on getting the best start for your cereals crop this spring

Your local technical team