Photographic guide to crown condition of oaks use for gypsy moth silvicultural treatments

by Gottschalk, Kurt William.
Published: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station ; Northeastern Area, State and Private Forestry, Appalachian Integrated Pest Management Program, 1993

Proceedings, 21st U.S. Department of Agriculture Interagency Research Forum on Invasive Species January 12-15, 2010, Loews Annapolis Hotel, Annapolis, Maryland

Published: U.S. Dept. of Agriculture, Forest Service, Northern Research Station, 2010

Proceedings, U.S. Department of Agriculture interagency Gypsy Moth research review, 1990 : January 22-25, 1990, East Windsor, CT

Published: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1991

Proceedings, 20th U.S. Department of Agriculture Interagency Research Forum on gypsy moth and other invasive species, 2009 : January 13-16, 2009, Loews Annapolis Hotel, Annapolis,...

Published: U.S. Dept. of Agriculture, Forest Service, Northern Research Station, 2009

Proceedings, U.S. Department of Agriculture Interagency Gypsy Moth Research Forum, 1994 : January 18-21, 1994, Loews Annapolis Hotel, Annapolis, Maryland

Published: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1994