» Weeds in the News

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Montana State Online Course on Herbicide Physiology

This online course covers topics in herbicide classification, herbicide mode of action, and resistance mechanisms. The goals of the course are: to understand the fundamental physiology, biochemistry, and molecular biology more »

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Left Uncontrolled, Weeds Would Cost Billions in Economic Losses Every Year

If weeds were allowed to grow with no control measures, about half of corn and soybean crops across the United States and Canada would be lost, costing growers about $43 billion annually, says a team of researchers. more »

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Weeds and Regulations: A Wicked Problem

There is a troubling discrepancy between the large number of harmful invasive plant species and the number of invasive plant species that are actually regulated. At the federal level, the USDA’s Animal and Plant Health Inspection service (APHIS) includes more »

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Cut Down on Weed Escapes

Like clockwork, Mid-South cotton growers know that pigweed escapes will begin to pop up in their fields by mid-July. In addition to being prolific seed producers, the pesky weed can also feature resistance to several types of herbicides more »

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Mid-South to Adopt Harvest Weed Seed Control?

Will Mid-South producers soon adopt widely used Australian techniques aimed to keep resistant weed seed out of fields? Steve Powles, a leading resistant weed specialist in the world, predicts that is exactly what will happen. more »

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What Are Your Herbicide Options for Large Palmer Amaranth in Corn?

Wet weather in the forecast will likely make for a narrow window to get these fields sprayed timely. As a result, there is likely to be some good size Palmer amaranth up in some corn fields by the time we can get back into spray. more »

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Newly Evolved Species of Tumbleweed Rolling Through California

Believe it or not, tumbleweeds—so strongly associated with wide-open expanses of the western United States—are actually weedy invaders from other continents. The most iconic and successful of these, the Russian thistle (Salsola tragus), came to America more »

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Weeds on Eve of Destructor

Two decades of research and development into destroying weed seed has taken a giant step forward with the release of a harvester integrated version of the Harrington seed destructor. more »

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Invasion of Giant Tumbleweeds Causes Clean-up Chaos in Wangaratta, Australia

Giant two-metre-high tumbleweeds have inundated a small community in Victoria’s north-east, creating havoc and blanketing homes, cars and driveways. more »

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Herbicide Diversity Trends in US Crops, 1990-2014

There are two things that I think just about every weed scientist can agree on: 1) herbicide resistant weeds make weed management more difficult; and 2) the key to battling herbicide resistant weeds (or any weeds, really) is to use … more »

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