Dear all, The deadline for ICPP this August in Lyon, France August 20-25 has been extended an additional week to Feb 28, speakers will hear back by mid to late March, and early bird registration ends in April. Below is a link to abstract submission as well as descriptions of the sessions we have organized. Please note that the organizing committee does not have funding to support speaker travel, except in the case of some speakers from developing countries. By Feb 28: https://www.icpp2023.org/call-abstracts Additionally, Tod Ramsfield has organized the session *"Current and emerging forest pathology issues"* and there are numerous other sessions relevant to forest pathology. *9.02/18.06 Advances in the use of novel monitoring programs and exotic sentinel trees to detect incipient threats posed by forest pathogens in forest ecosystems* Emergent diseases caused by invasive pathogens in forest ecosystems have substantial and well-characterized impacts on human wellbeing, livelihoods, ecosystem services, economies, the biosphere, and nature-based climate solutions. Unlike agricultural systems, invasive forest diseases are difficult to detect due to their cryptic nature and lag in detection. Due to the intractability of forest biosecurity based on reactive approaches, scientists have experimented for the last fifteen years with novel techniques to monitor for invasive pathogens. These new approaches include the use of sentinel trees—host specimens growing outside their native range—to document diversity and virulence of exotic pathogens before they enter the home range of native tree species. This session will present results of the use of sentinel trees in newly established gardens, botanical gardens and urban forests to identify future threats and cover efforts to monitor invasive pathogens introduced in nursery trade. *9.07/18.02 Understanding emergence of pathogens in commercial and public forest ecosystems* Along with farmlands, oceans, and the atmosphere, the sustainability of forests are threatened by a long list of interconnected threats, including climate change and plant pathogens. Novel, destructive host-pathogen associations continue to accumulate as a result of biological invasions. Meanwhile, climate change and landscape degradation continue to increase the susceptibility of forests to disease. Emergent diseases in managed and unmanaged forest ecosystems have substantial and well-characterized impacts on human wellbeing, livelihoods, ecosystem services, economies, the biosphere, and nature-based climate solutions. This session will explore genetic bases for pathogen emergence, and how it can be used to predict and understand the history and future of forest diseases; emergent diseases with insect vectors that are spreading as a result of climate change in Asia; emergent diseases in emergent economies in Africa and South America. *10.02/18.05 Social and cultural dimensions of international forest health* Along with farmlands, oceans, and the atmosphere, the sustainability of forests are threatened by novel, destructive host-pathogen associations that continue to accumulate as a result of biological invasions, with substantial and well-characterized impacts on human wellbeing, livelihoods, ecosystem services, economies, the biosphere, and nature-based climate solutions. Despite current scientific advances, introduction of exotic pathogens and resulting emergent forest diseases continue to be under detected. The problem goes beyond globalization and anthropogenic movements as it pertains to different social, political, and economic issues worldwide. This session will promote discussion and interdisciplinary collaboration among experts in the scientific and social dimensions of emergent pathogens in forests. Topics will cover indigenous perspectives and indigenous-led efforts to manage invasive pathogens, local and community knowledge and perceptions of forest health, and the contribution of social science, political science, and collective action frameworks for international frameworks to ensure resilience of forests and society to emergent pathogens. Best regards, [image: image.png] *Geoff Williams, PhDInternational Sentinel Network Coordinator* *Forest Service* *International Programs* *Office of the Chief* *Office: +1 (202) 263-9231* *WhatsApp: +1 (208) 874-7604**geoffrey.williams(a)usda.gov &lt;geoffrey.williams(a)usda.gov&gt;* 3101 Discovery Dr., Suite F Lansing, MI 48910 www.fs.fed.us <https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.fs.fed.us%2F&data=04%7C01%7C%7Ccd9bcaf69e89481c690908d96e53ef0c%7Ced5b36e701ee4ebc867ee03cfa0d4697%7C0%7C0%7C637662129034536018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Of%2BbKUO09cmZAtp1Yc5HQAko8%2FDCFcCljGfe0TgcuDg%3D&reserved=0> www.fs.fed.us/about-agency/international-programs <https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.fs.fed.us%2Fabout-agency%2Finternational-programs&data=04%7C01%7C%7Ccd9bcaf69e89481c690908d96e53ef0c%7Ced5b36e701ee4ebc867ee03cfa0d4697%7C0%7C0%7C637662129034536018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=TCGz6T4SF%2BEXgTfdPuzFP6Pu0wtYi53tfemmjyakkLQ%3D&reserved=0> <https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fusda.gov%2F&data=04%7C01%7C%7Ccd9bcaf69e89481c690908d96e53ef0c%7Ced5b36e701ee4ebc867ee03cfa0d4697%7C0%7C0%7C637662129034545979%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=7j8R54%2FINgNJwuZPtmmyf7qnKStbRuFDPvmAgn4O4ZQ%3D&reserved=0> <https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Ffacebook.com%2FUSDA&data=04%7C01%7C%7Ccd9bcaf69e89481c690908d96e53ef0c%7Ced5b36e701ee4ebc867ee03cfa0d4697%7C0%7C0%7C637662129034555933%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=uSn6vxbjaKnL6QHTWXJ1pRsmxcSLMV%2B5hIytKJibhwA%3D&reserved=0> *Caring for the land and serving people*