Invasive tree insect species pose significant threats to the health and biodiversity of urban forests in Southern Ontario. This abstract explores the current state of mitigation efforts against three prevalent invasive species such as Spongy Moth and Emerald Ash Borer. The discussion highlights the importance of a comprehensive urban forest planning approach, encompassing inventory, public education, communication, and priority management.Efforts to combat invasive tree insects in Southern Ontario rely on a comprehensive urban forest planning framework. Firstly, conducting thorough inventories of urban forests is crucial for identifying vulnerable areas and assessing the extent of damage caused by these pests. Inventory data aids in prioritizing intervention strategies and allocating resources effectively.Public education plays a vital role in engaging communities and fostering awareness. Informing residents, property owners, and stakeholders about the threats posed by invasive insects empowers individuals to take proactive measures. Education campaigns through workshops, events, social media, and websites are essential for disseminating information effectively.Efficient communication channels are necessary for sharing critical information about identification, detection, and management of invasive species. Collaborative efforts among government agencies, research institutions, and community organizations ensure a coordinated response.Priority management involves identifying and addressing high-priority areas and species. Implementing targeted management practices, such as insecticide treatments and selective tree removal, helps mitigate the impact of invasive insects while preserving urban forest health.A comprehensive approach to urban forest planning, including inventory, public education, communication, and priority management, enhances Southern Ontario's ability to combat invasive tree insect species effectively. Such efforts are vital for safeguarding urban forests, preserving ecosystem services, and ensuring community well-being.