Bert Cregg
Contact Me
Professor
Department of Horticulture
Phone:
517-353-0335
Email:
cregg@msu.edu
Degrees:
PhD in Forest Resources, University of Georgia, 1990
MPA in Public Administration, University of Nebraska, 1995
M.S. in Forest Science, Oklahoma State University, 1986
B.S. in Forest Management, Washington State University, 1983
A.S. in Forestry, Centralia College, 1980
Related Work
Authored Articles
- What are lichens and what are they doing on my tree?, April 16, 2025
- Addressing ice storm damage to trees, April 1, 2025
- Dealing with storm-damaged trees, April 1, 2025
- Real Christmas trees: Which one is right for you?, November 22, 2024
- Tips for success with your first real Christmas tree, November 22, 2024
- Michigan Christmas tree market looks steady for the 2024 season, November 22, 2024
- Making your real Christmas tree last through the holidays, November 22, 2024
- Living Christmas trees: Another real tree option, November 22, 2024
- Alternatives to Callery pear, an invasive and troublesome landscape tree, April 22, 2024
- Yikes! Yellow trees? What’s going on here?, April 19, 2024
- Frost and freeze protection for nursery crops, February 27, 2024
- When it comes to Christmas trees, when is a shortage not a shortage?, November 16, 2023
- Drought conditions begin to impact Michigan landscapes, June 21, 2023
- MSU Extension bulletin highlights alternatives to blue spruce, May 11, 2023
- The cone wars: How do we stop them?, May 8, 2023
- The top 10 do’s and don’ts of Christmas tree planting, March 28, 2023
- What can I plant to replace my storm-damaged tree?, March 1, 2023
- Real Christmas tree options for small spaces, November 21, 2022
- Don’t be a grinch, begin a holiday tradition at your local choose and cut Christmas tree farm, November 18, 2022
- Leaf scorch or oak wilt: What’s plaguing my tree?, September 26, 2022
- Fall color season is just around the corner, August 26, 2022
- Christmas trees 101: Irrigation management, August 16, 2022
- Landscape trees begin to show signs of summer stress, June 28, 2022
- Christmas trees 101: Nutrient management, May 18, 2022
- Christmas trees 101: Site selection and modifications, April 25, 2022
- Christmas trees 101: Soil test to optimize production, April 6, 2022
- Is there a Christmas tree shortage this year?, November 18, 2021
- Cones and acorns appear in copious quantities this fall, October 4, 2021
- Help me save my blue spruce, May 27, 2021
- Why is my Christmas tree beginning to grow?, December 10, 2020
- Christmas trees are naturally social distanced, November 13, 2020
- Worried about oak wilt?, April 6, 2020
- PhD student researches unconventional water sources for nursery crop irrigation, December 18, 2019
- Winter injury update to Michigan trees and shrubs, December 5, 2019
- What is spruce decline and what should you do about it?, June 28, 2019
- Why are my pine trees turning brown?, May 17, 2019
- Tree, turf and ornamental plant update — May 11, 2018, May 11, 2018
- Christmas trees for connoisseurs: Try an exotic species this year, November 22, 2017
- Introducing Michigan’s fall color lineup, October 2, 2017
- What’s going on with fall color in Michigan?, September 22, 2017
- Christmas tree, turf and ornamental plant update – May 19, 2017, May 19, 2017
- Don’t panic over frost damage to trees and shrubs, May 15, 2017
- Conifer problems that aren’t problems, May 5, 2017
- My backyard is under water—should I be worried about my trees?, April 6, 2017
- Cleaning up damaged trees after a windstorm, March 9, 2017
- Look before you plant landscape trees, May 3, 2016
- Knowing soil nutrient status is first step in developing fertilizer program, January 14, 2016
- Springtime means time to stop pruning oaks, May 1, 2015
- Winter injury or boxwood blight?, May 1, 2015
- Winter tests limits of plant cold hardiness, March 4, 2015
- New tip sheets on smart tree selections for communities and landowners, July 2, 2014
- Winter injury continues to show up in commercial nurseries, June 9, 2014
- Why are trees and shrubs so slow to leaf out this spring?, May 29, 2014
- Deer and rabbits and mice, oh my!, May 9, 2014
- Dealing with storm-damaged trees, November 18, 2013
- Fall color update in Michigan for 2013, September 18, 2013
- Growing edible pine nuts in Michigan, September 5, 2013
- Spruce trees produce a bumper crop of cones, September 5, 2013
- Imprelis update for late summer 2013, August 22, 2013
- Moisture stress and lack of nutrients contribute to maple color issues, August 22, 2013
- “Burning” of oak leaves associated with trunk injection, June 27, 2013
- Unsightly slime mold sighting on landscape mulch, June 20, 2013
- Severe chlorosis in pin oaks, June 13, 2013
- 2012 drought effects linger in trees and shrubs, June 6, 2013
- Imprelis update for spring 2013, June 6, 2013
- Update on winter injury to landscape trees for 2012-13, May 15, 2013
- Pollen cones may be plentiful on conifers in 2013, May 9, 2013
- 2013 Likely to be a big year for cones in Fraser fir plantations, May 9, 2013
- Mulching landscape beds FAQs, May 2, 2013
- Trees and flooding FAQs, April 25, 2013
- It’s raining, it’s pouring, and it’s a good time for a landscape site assessment, April 12, 2013
- Protecting trees and shrubs from frost damage, April 11, 2013
- Fall 2012 color outlook for landscape plants and trees, September 5, 2012
- Shade trees and conifers showing effects of tough summer, September 5, 2012
- Tree damage from Imprelis: One year later, June 19, 2012
- The do’s and don’ts of irrigating landscape plants, June 15, 2012
- Landscape trees and shrubs trying to make a comeback from late frost damage, May 25, 2012
- Maple seeds dropping in soon, May 11, 2012
- Late frost injury on nursery and landscape plants, May 4, 2012
- Landscape tree and shrub fertilization guide now available, April 20, 2012
- Mild winter weather provides “good news/bad news” scenario for landscape plants, March 4, 2012
- What’s new with Imprelis?, February 3, 2012
- USDA releases new hardiness zone map, January 30, 2012
- Act now to manage snow damage on arborvitaes, December 21, 2011
- MSU's Bert Cregg: Real Christmas trees are good for Michigan's environment and economy, November 29, 2011
- Fall predictions for landscape trees, September 19, 2011
- Eastern filbert blight on Turkish filbert, August 15, 2011
- Two more spruce problems that are not herbicide related, July 29, 2011
- Toxic mulch: When wood chips go bad, July 15, 2011
- Documenting suspected Imprelis injury, June 30, 2011
- What to do with Imprelis-affected trees, June 24, 2011
- Understanding tree reversions, June 17, 2011
- Getting the most from landscape herbicides, June 17, 2011
- Sizing up winter injury, April 28, 2011
- Cocoa mulch and dogs, March 21, 2011
- Mulch: Just do it!, March 21, 2011
- Going native with Michigan trees, March 14, 2011
- Reducing damage caused by tree roots, March 14, 2011
- Reducing damage caused by tree roots, March 14, 2011
- The value of green infrastructure for urban climate adaptation, March 10, 2011
- Don't give up on drought-stressed trees, September 10, 2010
- Thinking of ash alternatives? Don’t forget about elms, May 29, 2009
- Selection of salt tolerant trees, May 19, 2006
Articles Featuring
- Dr. Bert Cregg featured on Good Morning America, December 2, 2024
- Making your real Christmas tree last through the holidays, November 26, 2022
- Biomass allocation and nutrient use efficiency in response to water stress: insight from experimental manipulation of balsam fir, concolor fir and white pine transplants, November 16, 2021
- Reducing pesticide transport in surface and subsurface irrigation return flow in specialty crop production, August 24, 2021
- Species and season affect response of container-grown shade trees to pre-plant root modifications, May 18, 2021
- How 'Horticultural feminism' could alleviate allergies, May 14, 2021
- Irrigation return flow and nutrient movement mitigation by irrigation method for container plant production, March 29, 2021
- MSU Horticulture Faculty Members in Top 2 Percent, January 7, 2021
- MSU Horticulture faculty members ranked in top 2% of their field, January 6, 2021
- Don’t stress about what kind of Christmas tree to buy, but reuse artificial trees and compost natural ones, December 23, 2020
- Fresh tree, fresh cut, fresh water - how to get the most from your real Michigan Christmas tree, December 4, 2020
- The science of the season, December 4, 2020
- “Fresh tree, fresh cut, fresh water” – how to get the most from your real Michigan Christmas tree, November 20, 2020
- Fall colors are peaking in Northeast Michigan, October 15, 2020
- What Can Tree Growth Regulators Do for You?, October 6, 2020
- Farmers Enduring Drought, July 21, 2020
- Gardening: Dealing with the July drought, July 16, 2020
- 3 eco-friendly Christmas tree disposal tips, December 30, 2019
- Why are evergreen trees green all year?, December 28, 2019
- Ask Dr. Universe: Evergreen, December 24, 2019
- Needling question: Can science create a perfect Christmas tree?, December 19, 2019
- Ho, Ho, Horticulture: Is Your Fake Christmas Tree Environmentally Friendly?, December 12, 2019
- All of the Unexpected Things to Know (and Avoid) Before Buying a Christmas Tree, November 25, 2019
- A Look Into Fall Foliage, October 16, 2019
- Why are my pine trees turning brown?, June 2, 2019
- The Science of Growing a Perfect Christmas Tree, December 10, 2018
- Real vs. Artifical Christmas Trees: Which Is the Greener Choice?, November 26, 2018
- Reducing water use in ornamental plant production earns top distinction, January 11, 2018
- Project GREEEN helping Christmas tree industry thrive, September 22, 2017
- A changing climate: Selecting trees that flourish in urban settings, February 14, 2017
- New study guides poultry farmers on choosing eggs-actly the right hen housing system, April 2, 2015
- MSU researchers receive $7.7 million in specialty crop grants from USDA, October 3, 2014
- Herbicide could be turning evergreens brown, says AgBioResearch scientist, July 23, 2011
- AgBioResearch scientist cultivates improved sustainability practices for tree growers, December 30, 2010
Authored Documents
- Christmas Tree Species Guide, January 14, 2025
- How to Speak Christmas Tree – IPM: Abiotic Injury, May 1, 2024
- Climate Change Impacts on Christmas Tree Production in the Midwestern Region, February 26, 2024
- Nutrition Management: Nitrogen, December 31, 2023
- Precision Irrigation Management Using Sensor Technology in Christmas Tree Fields, September 30, 2023
- Fine Tune Your Fertilizer Program with Foliar Sampling, September 30, 2023
- How to Speak Christmas Tree: IPM: Disease Management, September 30, 2023
- Christmas Tree Planting Guide (E3481), August 8, 2023
- How to Speak Christmas Tree: Integrated Pest Management, July 1, 2023
- MSU Research Update: Winter 2022-23 Deer Repellent Trial, July 1, 2023
- How to Speak Christmas Tree: Soil Basics, May 1, 2023
- Phosphorus Management for Christmas Tree Production, May 1, 2023
- Alternatives to Blue Spruce: Top Conifers for Michigan Landscapes, April 30, 2023
- Managing Abiotic Problems in Christmas Tree Plantations, July 1, 2022
- Container Nursery Production Basics for Christmas Tree Growers, January 1, 2022
- Dealing with Deer, September 30, 2021
- What About Fall Planting?, July 1, 2021
- Alternative Approaches to Leader Control, May 1, 2021
- Is There Still a Place for Scotch pine?, January 1, 2021
- Is there a role for mulch in Christmas tree plantations?, September 30, 2020
- MSU Research Update: Can nitrogen stabilizers improve nitrogen management in Christmas tree plantations?, May 1, 2020
- Highlights of the 14th International Christmas Tree Research and Extension Conference, January 1, 2020
- Yellowwood, March 11, 2016
- Tupelo, March 11, 2016
- Tulip Tree, March 11, 2016
- Sycamore Maple, March 11, 2016
- Sweetgum, March 11, 2016
- Swamp White Oak, March 11, 2016
- Turkish Hazel, March 11, 2016
- Trident Maple, March 11, 2016
- Shingle Oak, March 11, 2016
- Silver Linden, March 11, 2016
- Scarlet Oak, March 11, 2016
- Shantung Maple, March 11, 2016
- Red Maple, March 11, 2016
- Northern Pin Oak, March 11, 2016
- London Planetree, March 11, 2016
- Miyabei Maple, March 11, 2016
- Little-leaf Linden, March 11, 2016
- Katsura Tree, March 11, 2016
- Japanese Pagodatree, March 11, 2016
- Honeylocust, March 11, 2016
- Kentucky Coffeetree, March 11, 2016
- Hybrid Elms, March 11, 2016
- Hedge Maple, March 11, 2016
- Hardy Rubber Tree, March 11, 2016
- Hackberry, March 11, 2016
- Ginkgo, March 11, 2016
- Freeman Maple, March 11, 2016
- Dawn Redwood, March 11, 2016
- European Hornbeam, March 11, 2016
- Chinkapin Oak, March 11, 2016
- Bur Oak, March 11, 2016
- Baldcypress, March 11, 2016
- Basswood or American Linden, March 11, 2016
- Amur Corktree, March 11, 2016
- American Hophornbeam, March 11, 2016
- American Hornbeam, March 11, 2016
- American Elm, March 11, 2016
Print
Email