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Non-target effects of broadleaf herbicide on a native perennial forb: a demographic framework for assessing and minimizing impacts


Crone, Elizabeth E.; Marler, Marilyn; Pearson, Dean E. 2009. Non-target effects of broadleaf herbicide on a native perennial forb: a demographic framework for assessing and minimizing impacts. Journal of Applied Ecology. 46: 673-682.

Invasive species are one of the leading threats to biodiversity worldwide. Therefore, chemical herbicides are increasingly used to control invasive plants in natural and semi-natural areas. Little is known about the non-target impacts of these chemicals on native species. We conducted an experiment to test the demographic effects of the herbicide picloram on a native dominant forb, arrowleaf balsamroot Balsamorhiza sagittata . As reported in earlier studies, picloram did not change leaf area of balsamroot in the short term (5 years). However, a single application of picloram dramatically reduced flowering and seed set, and these effects have persisted for at least 4 years after spraying.

Keywords: Balsamorhiza sagittata, Centaurea maculosa, decision analysis, grassland, matrix model, pesticide, picloram, population dynamics, sensitivity analysis, weed control


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http://www.fs.fed.us/rm/pubs_other/rmrs_2009_crone_e001.pdf

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Title: RMRS Other Publications: Non-target effects of broadleaf herbicide on a native perennial forb: a demographic framework for assessing and minimizing impacts
Electronic Publish Date: May 15, 2009
Last Update:
May 15, 2009

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