Extension Publications — Dr. Bert Cregg, Associate Professor

Recent Extension Presentations and Publications

 

Stelzer, H. and B. Cregg. 2013. FAQ's for helping your tree survive during a drought. Extension Disaster Education Network (EDEN) 6 pp.

Cregg, B. and K. Frank. 2011. A Homeowner's guide to Imprelis herbicide injury in landscape trees.

Cregg, B. 2011. Going native with Michigan trees. The Michigan Landscape May/June pp. 31-34.

Cregg, B. 2011. Beyond blue spruce: Uncommon conifers for Michigan Landscapes. Meadowbrook Garden Club. Rochester, MI, March 24, 2011.

Cregg, B. 2011. Effect of organic mulches on soil properties, physiology, and growth of landscape shrubs. SE Oakland County Water Authority, Bingham farms, MI, March 8, 2011.

Cregg, B. 2011. Tree selection for urban communities: natives, exotics, and common sense. Global Re-Leaf of Michigan, Midland, MI, Feb. 23, 2011.

Extension Bulletins

Schutzki, R. and B. Cregg. 2007 Abiotic plant disorders. A diagnostic guide to problem-solving. MSU Extension Bulletin E-2996. 16 pp.

Cregg, B. and R. Schutzki. 2006. Recommended ash alternatives for Michigan's Lower Peninusula. MSU Extension Bulletin E-2925. 12 pp.

Pot-in-Pot production

Cregg, B.M., W. Klooster, R.T. Fernandez, and P. Nzokou. 2009. Container production for living Christmas trees. Great Lakes Christmas Tree Journal 4(1): 37-41.

Cregg, B.M. 2006. Pot-in-Pot Research at MSU: A growing partnership. The Michigan Landscape 49:49-52.

 

"Conifer Corner" articles from the Michigan Landscape magazine

Conifers by size class:

Miniature conifers

Dwarf conifers

Intermediate conifers

Large conifers

Conifers by form class

Pendulous conifers

Spreading

Broad upright

Narrow upright

Globe

Prostrate

Irregular conifers

Culturally altered

Conifers by species

Firs
Cedars
Pines
Spruces
Hemlocks
Falsecypresses
Deciduous conifers

25 years of the Harper Conifer Collection

Remembering Chub Harper

Conifer species profiles from the Great Lakes Christmas Tree Journal

Fraser fir

Korean fir

Nordmann fir

Concolor fir

Other topics

Conifer nutrition
Cregg. B.M. 2004.The cold truth about winter injury. The Landsculptor. February 2004. p 34-3
2003.ABC's of tree nutrition: Part 1.The Landsculptor. August 2003. p. 23-25.
Cregg, B.M. 2003. ABC's of tree nutrition: Part 2.The Landsculptor. September 2003. p. 21-23.

 

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