Promoting Research, Education, and Awareness of Weeds in Managed and Natural Ecosystems

Weeds and invasive plants impact the world around us and our daily lives. They can reduce crop yields, choke waterways, trigger allergies, disrupt the natural habitats of plants and animals, create fire and safety hazards, and reduce aesthetic and property values. These are just a few of the environmental impacts caused by weeds.

Weed Science Society of America

WSSA Journals

Weed Technology, Weed Science, Invasive Plant Science and Management

WSSA Newsletter

2027 Annual Meeting

February 8 – 11, 2027

Grand Hyatt Denver
Denver, Colorado

Students

Headlines

Glyphosate Ban Could Cost Illinois Farmers $300M-$600M per year

Newly published research provides first evidence-based assessment, likely revenue loss

WESTMINSTER, Colorado –18 August 2026 – Recently published research in the journal Weed Technology assigns a significant annual cost to Illinois farmers if they were no longer able to use the herbicide glyphosate.

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Study Shows Early Planting Boosted Soybean Yields with Residual Herbicides

Soil residual herbicide programs in Indiana resulted in no yield loss compared to programs without residual herbicides

WESTMINSTER,

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High Rye Seeding Rates Prove Effective for Weed Suppression

A new Weed Science Society of America research article shows a generously seeded cereal rye cover crop helps reduce weed pressure for organic no-till soybean production

WESTMINSTER,

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