Weed Science Society of America

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What a decade of experience tells us about buffelgrass control

Buffelgrass is a highly invasive perennial that reduces the biodiversity of native ecosystems and provides ready fuel for wildfires in the arid regions where it thrives. After examining a decade of data from Arizona’s Saguaro National Park, researchers writing in the journal Invasive Plant Science and Management describe best practices for buffelgrass control.

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Tools for Palmer Amaranth Control Continue to Shrink

Palmer amaranth has a well-earned reputation as one of the most problematic weeds in agriculture. It is known for its many weedy traits and for its propensity to evolve resistance to herbicides of varying sites of action. An article featured in the latest issue of the journal Weed Science shows the number of tools available to control this weedy invader is continuing to shrink.

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Analysing seed germination and emergence data with R

Germination/emergence assays are relatively easy to perform, by following clear and standardised procedures. Most often, we take samples of seeds and we put them in Petri dishes/boxes/pots in some selected conditions (relating to, e.g., humidity content, light and temperature). We inspect those containers according to a tight schedule (e.g., daily) and, at each inspection, we count the number of germinated/emerged seeds and remove them from the containers.

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No Effective Post-Emergent Herbicides for Waterhemp?

Corn and soybean growers in Nebraska are now facing their worst nightmare. A research study featured in the journal Weed Science shows a population of waterhemp has evolved resistance to four distinct herbicide sites of action –  including PPO inhibitors, ALS inhibitors, EPSPS inhibitors and PS II inhibitors.…

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A New Herbicide for Watermelon Crops?

Watermelon growers face tough weed control challenges. One example: Crop seedlings need to be planted with plenty of elbow room – leaving wide spaces where broadleaf and grassy weeds can become established and reduce yields.…

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Land Managers Have a New Reason to Remove Invasive Plants

Scientists have discovered an important new reason to focus on removal of invasive plant species. A recent study featured in the journal Invasive Plant Science and Management shows that removing invaders alongside a stream or river can greatly improve the biodiversity of aquatic organisms.…

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