Kaleb Baker

Publication Date


Document Type


First Advisor

Swingley, Wesley D.

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Biological Sciences


Ecology; Conservation biology; Conservation of natural resources


Lonicera maackii is a non-native shrub that has invaded eastern and midwestern North American deciduous forests, altering the ecosystem functions and reducing biodiversity. Managers tasked with controlling L. maackii, being resource limited, require effective methods that are quick and easy to use without inflicting extensive nontarget damage. This study explores prescribed fire and seasonal basal applications of triclopyr as control methods and examines their extent of off-target damage. Paired-split plots were established to implement seasonal basal bark treatments within burned/unburned units where individual L. maackii were tracked to determine mortality and the hyperlocal impacts of management. Basal bark treatments were found to kill 98.4% of L. maackii without regard to the dormancy status of L. maackii. Off-target cover was reduced similarly for all herbicide application seasons while richness and Shannon diversity showed statistically different seasonal impacts but were biologically small. Prescribed fire did not impact L. maackii mortality, interact with herbicide efficacy, or alter the extent of off-target damage post-treatment. Basal bark applications of triclopyr are an effective means of control, unrelated to application timing.


Committee members: Barber, Nicholas A.; Jones, Holly P.; King, Richard B.||Advisor: Swingley, Wesley D.||Includes illustrations and map.||Includes bibliographical references.


47 pages




Northern Illinois University

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