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Why does Bayer promote
Integrated Weed Management?

Why is Bayer taking stronger action on weeds?


Bayer’s Crop Science division is an innovative agricultural input company, the world’s third largest, and has high-value seeds, crop protection and non-agricultural pest control businesses. We offer a broad portfolio of products to our customers and provide extensive services for modern and sustainable agriculture. Our strategy is designed to help solve some of the most pressing challenges in agriculture, such as producing affordable, high-quality crops in a sustainable way. To master this, we rely on collaboration and joint efforts along the entire value chain.


At Bayer we are deeply concerned about the global food security challenge: How can we feed a growing global population on an ever-diminishing amount of farmland? One major factor makes mastering this challenge all the more difficult: weeds. Around 30,000 weed species worldwide are threatening the quality and volume of farmers’ yields. What is more, weeds are becoming more and more complex to manage:

  • Weeds are highly competitive towards crops as they compete for water, light and nutrients
  • Chemical solutions, which help farmers manage weeds, are becoming more and more limited, and new ones are urgently needed
  • There is an increasing demand for more sustainable practices.


Bayer’s Integrated Weed Management (IWM) program seeks to tackle this food security challenge by:

  • Offering customized integrated weed control solutions based on a broad portfolio of high quality seeds, innovative crop protection and supporting services
  • Strongly promoting best management practices and herbicide stewardship in and beyond the field
  • Giving advice based on the latest scientific insights by Bayer and its partners
Our engagement is driven by the conviction that the appropriate management and use of our solutions in specific programs will help secure yields, and thus enhance farmers’ economic returns, and also safeguard human health and the environment. At a farm level, practicing Integrated Weed Management requires knowledge, dedication and time so farmers must be encouraged and supported in their efforts through country-based initiatives and local programs all over the world.

Why farmers urgently need an integrated approach against weeds
If a particular weed management practice is working well and economically attractive, it is tempting for farmers to apply  ‘the same procedure as every year’ – even if they know that over-reliance on a single measure, any measure, can significantly increase selection pressure and result in weeds shifting and evolving to resistant weeds. That’s why farmers need a varied toolbox of products and practices to keep weeds off balance and delay the build-up of resistance. Incorporating IWM measures helps to sustain weed control systems over time, maintain farms’ productivity, and delay the potential raise of resistant populations. This requires the risk to be recognized, studied in detail, and addressed with a dedicated program over a longer period of time.

Bayer’s Integrated Weed Management (IWM) Program is a well-balanced combination of three components to enhance farmers’ productivity and secure food supplies in the long term:

  • Outstanding integrated weed solutions based on a broad portfolio
  • Locally implemented programs according to tailored best weed management practices
  • Sound basis supported by the latest scientific insights and contributions from valuable partnerships
In 2015 alone Bayer invested €1,089 million in crop science research.


At Bayer we have the expertise to provide effective answers to the new challenges in weed control. This confidence is based on the unparalleled depth and breadth of resistance expertise at our Weed Resistance Competence Center (WRCC). Our WRCC specialists study weed resistance mechanisms in the laboratory and the evolution of weed populations in the field; test and develop new concepts and tactics to manage weeds in more diverse ways; and communicate and share knowledge and solutions. However, since we know that these challenges can only be mastered through joint efforts in research and development, the WRCC cooperates globally with leading institutes and universities on numerous projects and networks with weed scientists worldwide to expand its capabilities to investigate many different weed management issues.

Crop Science

Crop Science

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Bayer’s IWM Program

Bayer’s IWM Program

What is our IWM approach?

Discover our global IWM Program