The Plant-Herbivore Interaction GRC is a premier, international scientific conference focused on advancing the frontiers of science through the presentation of cutting-edge and unpublished research, prioritizing time for discussion after each talk and fostering informal interactions among scientists of all career stages. The conference program includes a diverse range of speakers and discussion leaders from institutions and organizations worldwide, concentrating on the latest developments in the field. The conference is five days long and held in a remote location to increase the sense of camaraderie and create scientific communities, with lasting collaborations and friendships. In addition to premier talks, the conference has designated time for poster sessions from individuals of all career stages, and afternoon free time and communal meals allow for informal networking opportunities with leaders in the field.

Plant-herbivore interactions are the conduit for energy flow from the sun to the diversity of life on the planet. Understanding the genetic and chemical mechanisms underlying these interactions inform fundamental biological principles and hold the key for solving applied problems. Recent advances show that plant-herbivore interactions are at the center of networks of diverse communities, with the macroevolution of chemical defense a driver of plant and herbivore diversity. Variability in defenses affects antagonistic and mutualistic interactions, many of which are relevant for conservation. At the same time, sensory biology of herbivores operates at different spatial scales, with consequences for the effects of plant resistance in communities and in pest management applications. With each decade we are getting closer to understanding the genetic basis of adaptation, and current work in plant-herbivore interactions is revealing surprising rules that govern evolution in ecological communities. The meeting will incorporate the interactions between plants and their vertebrate and invertebrate herbivores, including pollinators and seed dispersers, and associated microbes across wild and human dominated systems. Sessions will highlight diverse speakers with diverse approaches to stimulate discussion about paths to push the discipline forward. The 15th Gordon Research Conference on Plant-Herbivore Interactions (GRC PHI) will cover a wide range of topics, including sensory biology by plants and herbivores across scales, evolution of plant defenses, multispecies interactions, applications to pest management and climate change, and how new tools are changing our discipline. The GRC PHI conference prides itself in creating a congenial, inclusive atmosphere, which facilitates far-reaching discussions across a broad range of expertise and levels of experience. The collection of speakers come from across the globe and represents a diversity of ideas and knowledge. The 2023 GRC PHI will feature a Power Hour, aimed at supporting the careers of female and underrepresented minority scientists, and will be preceded by a Gordon Research Seminar (GRS) specifically tailored to early-career scientists including graduate students and postdocs.