Dear Colleagues, With great optimism, the Scientific Organizing Committee would like to announce the new dates of 20-24 September, 2021 for the IUFRO conference, "Biological Invasions in Forests: Trade, Ecology and Management" to be held in Prague, Czech Republic. This is a joint meeting of IUFRO units: 7.03.12 - Alien Invasive Species and International Trade 7.03.07 - Population Dynamics of Forest Insects 8.02.04 - Ecology of Alien Invasives The conference is hosted by the Czech University of Life Sciences Prague Beginning in February we will accept submissions of abstracts for oral and poster presentations on topics including: - Invasions of non-native insects, tree pathogens, plants and other organisms in forest ecosystems - The role of trade and travel as pathways for invasions - Ecology and impact of non-native species in forests - Management of invasions / biosecurity Registration will also open in February. For more information, please visit the conference website: https://iufro.czu.cz or email: Andrew Liebhold USDA Forest Service aliebhold(a)gmail.com Rene Eschen CABI R.Eschen(a)cabi.org Petra Jiroudková Czech University of Life Sciences Prague jiroudkova(a)fld.czu.cz Andrew Liebhold http://sandyliebhold.com Northern Research Station 304-285-1512 USDA Forest Service 304-285-1505 FAX 180 Canfield St. 724-317-8668 mobile Morgantown, WV 26505 USA