Lois Berg Stack

Professor and Ornamental Horticulture Specialist
School of Food and Agriculture
University of Maine Cooperative Extension
495 College Avenue
Orono, ME 04469

Degree: Ph.D., University of Wisconsin-Madison, 1984

Research Topic:  Invasive plant management, native plant pollen/nectar sources, Aronia melanocarpa

Overview of Research: I conduct applied research that responds to production and management need of Maine’s ornamental horticulture industry. My current projects include assessment of Aronia melanocarpa production in New England and assessment of introduced and native plants as pollen/nectar sources for native bees and honeybees. I work extensively with the green industry in New England. Extension projects include editorship of the biennial New England Greenhouse Floriculture Guide, collaborative planning of the Northeast Greenhouse Conference and the New England Grows trade show, collaboration on economic impact surveys of New England’s green industry, and development of topic-focused educational programs for Maine’s green industry.

Representative Publications:
Coats, V.C., Stack, L.B., and Rumpho, M.E. (201x).Maine nursery and landscape industry perspectives on invasive plant issues.Invasive Plant Science and Management. (in press)

Hawkins, B., S.E. Burnett and L.B. Stack.2012. Survey of consumer interest in organic, sustainable, and local container-grown plants in Maine. HortTechnology (in press).

Murphy, A., R. Austin, R. Bangs, G. Fish, R. Roberge and L.B. Stack. 2011. Maine Sustainable Landscape Certification Manual. Maine Landscape and Nursery Association.

Stack, L.B., ed. 2010. New England greenhouse floriculture guide: a management guide for insects, diseases, weeds and growth regulators 2011-2012. New England Floriculture, Inc.

Garland, K.F., S.E. Burnett, L.B. Stack and D. Zhang. 2010. Minimum daily light integral for growing high-quality coleus. HortTechnology 20:929-933.

Perry, L.P. and L.B. Stack. 2009. $4.7 billion & growing: a summary of the impact of the environmental horticulture industry on the New England economy.  New England Nursery Association, Inc.

Burnett, S.E. and L.B. Stack. 2009. Survey of the research needs of the potential organic ornamental bedding plant industry in Maine.  HortTechnology 19:743-747.

Stack, L.B., ed. 2008. New England greenhouse floriculture guide: a management guide for insects, diseases, weeds and growth regulators 2009-2010. New England Floriculture, Inc.

Burnett, S.E., D. Zhang, L.B. Stack and Z. He.  2008.  Effects of phosphorus on morphology and foliar nutrient concentrations of hydroponically grown Scaevola aemula R. Br. ‘Whirlwind Blue’.  HortScience 43(3):902-905.

Zhang, D., R. Zhang, J. Yu, L.B. Stack, B. Xie, and J.M. Ruter. 2008. Teaoil camellia — eastern “olive” for the world. Acta Horticulturae 769:43-48.