Understanding the cause and effect interactions between insects and their host-trees is key to our developing awareness of the integral role that insects play in maintaining the biodiversity and resilience of Pacific Northwestern forests. Robert Gara, UW professor of forest entomology, discusses insects' role in sustaining vigorous forests and effective techniques for managing insect outbreaks. Protecting forest biodiversity and resilience while effectively managing such outbreaks is a future challenge for the entomological profession. From the Series:Sustaining Our Northwest World: Tales from the Forest