New Tool for Weed Resistance Management

Find out how far herbicide resistance has spread with a new interactive map.
New Tool for Weed Resistance Management
Syngenta has developed a new online tool for growers and retailers as they prepare for the 2020 growing season. The Interactive Resistance Map shows where resistant weed species have been reported across the mainland U.S., from 1970 through 2019. Visitors to the website can adjust a slider to advance the years and track the shifting path of resistance over recent decades. The range and number of affected weed species in a given location are represented by a shaded area, allowing growers to easily see how resistance has become the serious challenge that it is today.
How far has herbicide resistance spread since 1970? The new interactive map from @Syngenta shows where resistant weeds have been reported.

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The consequences of weed management practices have never been more apparent than after a tough 2019 season. To help growers in the fight against resistance in their fields, Syngenta is also offering a free, three-part agronomic guide for 2020 planting preparations, plus information about the corn and soybean herbicide programs Syngenta agronomists recommend.

  • Part I: Weed Seed Bank Management

    In 2020, weed seed bank management is top of mind for most growers and retailers. Delayed and prevented planting and a lack of preemergent herbicide use this past year means 2020 will see a more densely populated weed seed bank. Vigilant management can make or break the season ahead. The first article in the #Plant2020 Prep Series covers tips for managing the elevated level of weed seeds this year.

  • Part II: Preemergent Herbicide Power

    What starts as a tiny weed seed can grow into a huge problem, as many species multiply exponentially when allowed to go to seed. On top of that, different species can reach towering heights, potentially overshadowing the average 8-foot-tall mature corn plant.

    The second article in the #Plant2020 Prep Series takes a closer look at why residual preemergent herbicide applications are the cornerstone for high-yielding corn and soybean crops.

  • Part III: Two Forms of Resistance, Four Control Strategies

    Target site resistance is the type of weed resistance that growers are most familiar with and typically face. But recently, a second type has become more common: metabolic.

    The challenge of 100% herbicide effectiveness continues to grow each season. The third article in the series breaks down the differences between the types of resistance and covers where the current state of resistance is headed tomorrow, so growers can adapt their management practices accordingly.

    Looking at the current toolbox for fighting resistance, many of the herbicides currently available contain active ingredients originally developed in Syngenta labs. For decades, Syngenta has been collaborating with university experts and conducting research to solve problems associated with herbicide resistance.

The interactive map is another initiative from Syngenta in the fight against resistant weeds. Each season, Syngenta gives growers and retailers access to the most diverse herbicide portfolio available and promotes sound resistance management, including both effective chemistries and cultural practices.