Harper, R.W. and P.A. Weston. 2015. Adaptation, performance, and host-resistance: Tsuga spp. research in the Northeast. RHODORA 117( 972): 514–515. (Abstract)

Harper, R.W. 2016. Review of Features from the past for the future, Branching Out: An integrated pest management newsletter for trees and shrubs, by D.D. O’Brien and G.W. Hudler. Arboriculture & Urban Forestry 42(3): 213-214.

Lemelin, R.H., J. Dampier, R.W. Harper, D. Balika, and R. Bowles. 2017. Perceptions of Insects: A Visual Analysis. Society & Animals. DOI: 10.1163/15685306-12341469. 

Harper, R.W. and P.A. Weston. 2016. Potential of alternative Tsuga spp. as landscape replacements for T. canadensis: Longer-term evaluation and propagation of T. chinensis. Arboriculture & Urban Forestry 42(5): 346-354.​

Allen, K.S., R.W. Harper, A. Bayer and N.J. Brazee. 2017. Nursery production systems and their impact on urban tree survival. Urban Forestry and Urban Greening 21(1):183-191.

Research Briefs

Research made interactive! Archived original research footage from the ​University of Massachusetts Department of Environmental Conservation, Amherst, MA.

Lemelin, R. H., R.W. Harper, J. Dampier, R. Bowles, and D. Balika. 2016. Humans, insects and Their interaction: a multi-faceted analysis. Animal Studies Journal 5(1): 65-79.

Rick Harper
Extension Assistant Professor of Urban and Community Forestry


​Department of Environmental Conservation
University of Massachusetts Amherst
160 Holdsworth Way
Amherst, MA 01003

rharper@eco.umass.edu


Chinese hemlock or Eastern hemlock? Human Perception's Research (Dampier et al. 2015). This video outlines exploratory research regarding these two hemlock species.

Harper, R.W., W. R. Autio, J.T. Finn and F.S. Rossi. 2016. Tree Wardens and public grounds management in North America: Overseeding athletic fields with perennial ryegrass to promote safe playing surface. Arboricultural Journal 40 (3):1-13.

Markarian, G., R.W. Harper and D.V. Bloniarz. 2016. Flexible, open-source programmes and estimating projections of urban tree benefits: A case study in Amherst, MA. Arboricultural Journal 38 (1):1-13.

Comparing Nursery Production Systems from Rick Harper


Planting a Balled-and-Burlapped, Conter-Grown, In-ground Fabric or Bare-Root Tree? This video outlines recent cost-analysis research (Green et al. 2015) regarding the planting of urban trees.

Emerging Approaches to Tree Inventory Anaylsis from Rick Harper


This research update examines the use of flexible, open-source computer programs to estimate projections of urban tree benefits (Markarian et al. 2016).

​The Urban Forestry Today Webcast Series is sponsored by the University of Massachusetts Department of Environmental Conservation, in cooperation with the USDA Forest Service, Massachusetts Department of Conservation and Recreation, University of Massachusetts Extension, and Massachusetts Tree Wardens' & Foresters' Association. 

For more information:

​​​​Urban Forestry Today

Publications

Green, B.L., R.W. Harper and D.A. Lass. 2015. Differing nursery production systems impact cost of planting oak species in the urban environment. Horttechnology 25(5):651-656.




 

Dampier, J.E.E., R.W. Harper, L. Schwartzberg and R.H. Lemelin. 2015. A comparison of Arborists’ and Horticulturists’ preferences of Tsuga chinensis to T. canadensis in the urban landscape. Arboriculture & Urban Forestry 41(1):41-48.​

 




Harper, R.W. 2015. Review of the ABCs field guide to young and small tree pruning, by A.G. Plenninger and C.J. Luley. Arboriculture & Urban Forestry 41(1):49-50.






Clapp, J.C., H.D.P. Ryan, R.W. Harper and D.V. Bloniarz. 2014. Rationale for the increased use of conifers as functional green infrastructure. Arboricultural Journal 36 (3):161-178.​





Harper, R.W. 2014. Review of wasp and bee management: a common-sense approach, by J.L. Gangloff-Kaufmann. Arboriculture & Urban Forestry 40(1):46-47.






Harper, R.W. and R.S. Cowles. 2013. Susceptibility of Chinese hemlock (Tsuga chinensis) to injury from autumn horticultural oil applications. Arboriculture & Urban Forestry 39(1):6-10.​






Weston, P.A. and R.W. Harper. 2009. Potential of Tsuga spp. from North America and Asia as replacements for eastern hemlock (Tsuga canadensis). Arboriculture & Urban Forestry 35(1):5-9.​