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Will Gene Sequencing Lead to New Weed Control Strategies?

Palmer amaranth and waterhemp are two troublesome amaranthus species weeds that are resistant to multiple herbicides. They also have unique reproductive features. more »

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A Perfect Storm: Are Environmental Factors Fueling Herbicide Resistance?

Sobering global survey data shows weeds have evolved resistance to 167 herbicides spanning 23 of 26 known sites of action. Now scientists writing in the journal Invasive Plant Science and Management say climate change and elevated levels of carbon dioxide (CO2) may be contributing to the development of herbicide resistance. more »

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Can Native Plants Make a Comeback on Their Own

As invasive shrubs become more prevalent in U.S. forests, they are creating dense understories that outcompete native plants. Land managers with limited resources find themselves facing a tough decision. Does it make sense to remove the invaders if a comprehensive restoration program isn’t possible? more »

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Can Cover Crops Slow Herbicide Resistance?

Herbicide resistance is a costly and growing problem. In fact, many weed populations now exhibit resistance to multiple herbicide mechanisms of action. more »

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Mix Things Up to Control Dicamba-Resistant Kochia

Kochia is a highly invasive weed known to be resistant to multiple herbicides. In the Great Plains region, kochia populations have now evolved resistance to dicamba. more »

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Herbicide-Resistant Kochia: What We Know – and Don’t Know – About This Troublesome Weed

The broadleaf weed kochia is a real and growing threat to major cropping systems and soil conservation practices across the Great Plains. Some kochia populations are now resistant to as many as four herbicide sites of action, making it imperative that we understand more about the weed and how to manage it. more »

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Rethinking Invasive Weed Control: Sometimes Treating Fewer Plants Can Produce a Greater Impact

When battling invasive weeds, it’s easy to conclude that treating the largest masses first is the best strategy. But scientists writing in the journal Invasive Plant Science and Management say that isn’t always best. more »

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For Effective Henbit Control, Timing Matters

Spring-applied herbicides are no match for henbit, a winter annual weed found in more than 50 crops – including corn, cotton and soybean. But researchers say a simple change in application timing can make all the difference. more »

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Research Focuses on Factors that Fuel New Plant Invasions

Which environmental factors are most important to the establishment of new plants of invasive species? Is it seed dispersal from existing plants? Canopy disturbance? Disturbance to the soil or leaf litter? more »

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Researchers Document the Role Rainfall Plays in Organic Weed Control

Organic  growers can face tough challenges when it comes to weed control.  But new research published in the journal Weed Science shows weather conditions and well-timed cultural management techniques can make a big difference. more »

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