1:30 PM Foster, Sara^*,1, Mack, Richard¹, Black, R. Alan¹, ¹ Washington State University, Pullman, WA The Barberry Eradication Program in Whitman County, Washington: A reassessment.

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1:45 PM Nagel, Jennifer^*,1, Huxman, Travis², Griffin, Kevin³, Smith, Stanley⁴, ¹ Texas Tech University, Lubbock, TX² University of Arizona, Tucson, AZ³ Columbia University, Palisades, NY⁴ University of Nevada, Las Vegas, NV Carbon dioxide enrichment reduces the energetic cost of biomass construction in an invasive desert grass.

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2:00 PM Renne, Ian ^*,1, Rios, Bianca², Fehmi, Jeffrey^{2, 3}, Tracy, Benjamin¹, ¹ Department of Crop Sciences, Urbana, IL² Dept. of Natural Resources and Env. Sciences, Urbana, IL³ U.S. Army ERDC-CERL, Champaign, IL Allelopathic potential of an invasive forage grass on native grassland plants.

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2:15 PM Howe, Katherine^*,1, ¹ SUNY-Stony Brook, Stony Brook, NY Plant community composition and natural enemies affect invasion success of a grassland plant.

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2:30 PM Dwire, Kathleen ^*,1, Parks, Catherine², Perkins, Dana³, McInnis, Michael⁴, Read, Bridgett², ¹ USDA Forest Service, Laramie, WY, USA² USDA Forest Service, LaGrande, OR, USA³ USDI Bureau of Land Management, Challis, ID, USA⁴ Oregon State University, Corvallis, OR, USA Seed production, dispersal, and age determination of Potentilla recta L., an invasive non-native species in northeast Oregon.

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2:45 PM Break.

3:00 PM Rieder, Julie^*,1, Evans, Edward¹, ¹ Utah State University, Logan, UT Patterns of yellow starthistle (Centaurea solstitialis) emergence, establishment, and fecundity: The influence of vegetation cover.

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3:15 PM Abraham, Joel^*,1, Corbin, Jeffery¹, D'Antonio, Carla^{1, 2}, ¹ University of California, Berkeley, Berkeley, CA² USDA-ARS, Reno, Nevada Phenology and seedling competition affect regeneration of perennial grasses in California exotic annual grasslands.

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3:30 PM Kramer, Karen^*,1, Norton, Andrew¹, ¹ Colorado State University, Ft. Collins, Colorado Integrating intensive grazing and biological control for the management of Dalmatian toadflax.

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3:45 PM MacKinnon, Daniel^*,1, Hufbauer, Ruth ¹, Norton, Andrew¹, Jackson, Aaron ¹, ¹ Colorado State University, Fort Collins, CO Preference of an insect biological control agent for two invasive weeds, yellow and Dalmatian toadflax.

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