Suggested Reading
Albers, J.; Hayes, E. 1993. How to detect, assess and correct hazard trees in recreational areas, revised edition. St. Paul, MN: Minnesota DNR. 63 p.
Bedker, P.J.; O’Brien, J.G.; Mielke, M.E. 1995.
How to Prune Trees. NA-FR-01-95. Radnor, PA: USDA Forest Service, Northeastern Area State and Private Forestry. 30 pp. (Also available on the Internet via FTP or the World Wide Web at: http://willow.ncfes.umn.edu).
Fazio, J. 1989. How to Hire an Arborist. Tree City USA Bulletin No. 6. Nebraska City, NE: National Arbor Day Foundation; 8 p.
Fazio, J. 1989. How to Recognize and Prevent Hazard Trees. Tree City USA Bulletin No. 15. Nebraska City, NE: National Arbor Day Foundation; 8 pp.
Robbins, K. 1986. How to Recognize and Reduce Tree Hazards in Recreation Sites. NA-FR-31. Radnor, PA: USDA Forest Service, Northeastern Area;. 28 p.
Shigo, A. L. 1986. A New Tree Biology. Durham, NH: Shigo and Trees, Associates; 595 p.
The Authors:
Minnesota DNR
Minnesota Department of Natural Resources
500 Lafayette Road
St. Paul, MN 55155-4044
USDA Forest Service
Northeastern Area State & Private Forestry
Headquarters Office
USDA Forest Service
Northeastern Area State and Private Forestry
5 Radnor Corporate Center, Suite 200
Radnor, PA 19087-4585 Durham Field Office
USDA Forest Service
Northeastern Area State and Private Forestry
Louis C. Wyman Forest Sciences Laboratory
P.O. Box 640
Durham, NH 03824-9799 Morgantown Field Office
USDA Forest Service
Northeastern Area State and Private Forestry
180 Canfield Street
Morgantown, WV 26505-3101 St. Paul Field Office
USDA Forest Service
Northeastern Area State & Private Forestry
1992 Folwell Ave.
St. Paul, MN 55108-1099
How to Recognize Hazardous Defects in Trees
was written to help people identify potential problems with trees. Trees with serious defects can pose an extreme hazard and should be treated with caution. The best way to correct a hazardous tree is to hire a professional arborist. Information in this publication can help to identify trees that require attention.
Bedker, P.J.; O’Brien, J.G.; Mielke, M.E. 1995.
How to Prune Trees. NA-FR-01-95. Radnor, PA: USDA Forest Service, Northeastern Area State and Private Forestry. 30 pp. (Also available on the Internet via FTP or the World Wide Web at: http://willow.ncfes.umn.edu).
Fazio, J. 1989. How to Hire an Arborist. Tree City USA Bulletin No. 6. Nebraska City, NE: National Arbor Day Foundation; 8 p.
Fazio, J. 1989. How to Recognize and Prevent Hazard Trees. Tree City USA Bulletin No. 15. Nebraska City, NE: National Arbor Day Foundation; 8 pp.
Robbins, K. 1986. How to Recognize and Reduce Tree Hazards in Recreation Sites. NA-FR-31. Radnor, PA: USDA Forest Service, Northeastern Area;. 28 p.
Shigo, A. L. 1986. A New Tree Biology. Durham, NH: Shigo and Trees, Associates; 595 p.
The Authors:
Minnesota DNR
- Jana Albers, Plant Pathologist, Grand Rapids, MN. Tom Eiber, Entomologist, St. Paul, MN. Ed Hayes, Plant Pathologist, Rochester, MN.
- Peter Bedker, Plant Pathologist, St. Paul, MN. Martin MacKenzie, Plant Pathologist, Morgantown, WV. Joseph O’Brien, Plant Pathologist, St. Paul, MN. Jill Pokorny, Plant Pathologist, St. Paul, MN. Mary Torsello, Plant Pathologist, Durham, NH.
- Minnesota Department of Natural Resources, and USDA Forest Service. 1996. How to Recognize Hazardous Defects in Trees. USDA Forest Service NA-FR-01-96. 20 pp.
Minnesota Department of Natural Resources
500 Lafayette Road
St. Paul, MN 55155-4044
USDA Forest Service
Northeastern Area State & Private Forestry
Headquarters Office
USDA Forest Service
Northeastern Area State and Private Forestry
5 Radnor Corporate Center, Suite 200
Radnor, PA 19087-4585 Durham Field Office
USDA Forest Service
Northeastern Area State and Private Forestry
Louis C. Wyman Forest Sciences Laboratory
P.O. Box 640
Durham, NH 03824-9799 Morgantown Field Office
USDA Forest Service
Northeastern Area State and Private Forestry
180 Canfield Street
Morgantown, WV 26505-3101 St. Paul Field Office
USDA Forest Service
Northeastern Area State & Private Forestry
1992 Folwell Ave.
St. Paul, MN 55108-1099
How to Recognize Hazardous Defects in Trees
was written to help people identify potential problems with trees. Trees with serious defects can pose an extreme hazard and should be treated with caution. The best way to correct a hazardous tree is to hire a professional arborist. Information in this publication can help to identify trees that require attention.
