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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

Multiyear Study Evaluates Control Options for Swallowwort Vines

Scientists have just concluded a six-year study of potential controls for pale swallowwort and black swallowwort (Vincetoxicum spp.) – two perennial vines native to Europe that are invading habitats in northeastern North America.

WSSA Survey Ranks Palmer Amaranth as the Most Troublesome Weed in the U.S., Galium as the Most Troublesome in Canada

LAWRENCE, Kansas – April 5, 2016 – It’s now official.  A survey conducted by the Weed Science Society of America (WSSA) has ranked Palmer amaranth,

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WSSA Herbicide Handbook

10th Edition

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WSSA is a non-profit professional society promoting research, education, and awareness of weeds in managed and natural ecosystems

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