UI Center for Research on Invasive Species and Small Populations UI Center for Research on Invasive Species and Small Populations University of Idaho College of Natural Resources University of Idaho College of Agricultural and Life Sciences Image Map
Aug 082012

George NewcombeAssociate Professor of Forest Pathology
Ecology & Conservation Biology
Forest Resources

(208) 885-5289


Dr. George Newcombe received a BS in Plant Science from McGill University in 1983 and a PhD in Botany from the University of Guelph in 1988. George’s research encompasses plant and forest pathology, and invasion biology. Specifically, his group is interested in the roles of fungi in plant communities. Photo in Beijing, September 2007, for the International Workshop on Biological Control of Invasive Species of Forest [Photo courtesy of Yilmaz Balci, University of Maryland]. more info

CRISSP Research
  1. Diagnosis of fungi that are new to North America or to the region. In 1992, George discovered for the first time in North America the Eurasian poplar leaf rust fungus, Melampsora larici-populina (Newcombe and Chastagner 1993). Since then, he has been a regular contributor to this element of invasion biology.
  2. Research on fungi that might protect native trees from exotic pathogens. With Beccy Ganley, a former PhD student, and Richard Sniezko, a colleague in the Forest Service, George discovered that selected endophytes might protect western white pine trees from the exotic disease, white pine blister rust. George and Richard are now using the same approach to see if endophyte inoculations of outplanted seedlings could make the difference in whitebark pine restoration. George is also attempting to use endophytes to protect hybrid popular plantations.
  3. Research on fungi that might be used against invasive plants. George has been researching selected endophytes that might work against invasive plants such as spotted knapweed, meadow hawkweed, and cheatgrass.
  4. Research on genes for resistance to exotic pathogens of plants. George has been conducting research in this area since getting involved in hybrid poplar research in 1991.
CRISSP Classes

FOR 531: Invasion Biology (for graduate students)
FOR 468: Forest and Plant Pathology (for senior undergraduate students)

 August 8, 2012
Aug 082012

John MarshallProfessor of Forest Ecology
Forest Resources

(208) 885-6695



Dr. John Marshall received a BS and MS in Forestry from Michigan State University and a PhD in Forest Science from Oregon State University in Corvallis. John’s research is focused on tree physiology, ecosystem ecology, and stable isotope ratios. Examples of his current reseach projects include the differences in water sources among tree species in northern Idaho, water-use efficiency difference among provenances of western conifers, and the use of carbon isotopes in tree rings to detect physiological responses to increasing carbon dioxide.

 August 8, 2012
Aug 072012


Associate Professor of Natural Resource Entomology
Plant, Soils, and Entomological Sciences



(208) 885-2722


Dr. Stephen Cook received a BS in Environmental Biology from Heidelberg College, a MS in Entomology from Texas A&M University and a PhD in Entomology from North Caroling State University. Steve’s research is on Forest entomology with emphases on: Chemical and behavioral ecology of insect-tree interactions; Insect population and community dynamics; Impact of invasive species on forest community dynamics; Use of remotely-sensed data for detection and assessment of insect infestations and damage; Biological control of forest insects; Management of selected insect populations. For Steve, forest entomology represents the ideal combination of basic and applied research and Idaho represents an ideal location. Whether they are basic or applied questions, there are many facets of forest entomology that can be addressed within a short drive of Moscow. Currently, one of my primary areas of interest is in developing detection and management strategies for ‘pest’ species (including non-native forest insects such as Balsam Woolly Adelgid).

CRISSP Classes

(click on the links below for more information)

FOR 466: Forest Diseases and Insects

FOR 207: Sustainable Forestry

FOR 569: Advanced Forest Entomology

 August 7, 2012