The course builds up on the Bachelor course Entomology and Pathology. The basics of the ecology, function, importance and management of insects and pathogens (in particular fungi) in forests are deepened and illustrated with examples from research. In addition to general aspects of forest health with regard to native and invasive species, applied and methodological aspects are also addressed.

The most relevant ecological principles of forest insects and their various functions within forest ecosystems are discussed basing on specific examples. Emphasis is put on the ecology of the most relevant insect groups and on the management of both detrimental and endangered species. In addition, the impact of climate change on forest insects and of alien species is discussed.