Effects of underwater clipping of purple loosestrife in a southern Ontario wetland
-
-
Authors: M. J. Haworth-Brockman, H. R. Murkin, R. T. Clay, and E. Armson
Date: 1991
Journal: Journal of Aquatic Plant Management
Volume: 29
Number: 2
Pages: 117-118
Summary of Methods: Effects of a single underwater surface clipping on established mature purple loosestrife plants were examined over one growing season at Green Gables Marsh near Kingston, Ontario (44° 46' N, 76° 01' W). One hundred 3 x 3 m plots were identified and assigned to four treatments: uncut, or clipped 10 cm below water surface in June 16 (early summer), July 15 (mid-summer), or August 18 (late summer). Number of plants per plot was counted each month after treatments from June 16 and continued through October 15.
Article Summary / Main Points: A single clipping did not significantly affect weed densities, which was about 8 stems per plot in the control and treatment plots. Plots clipped in early summer required two months for plant densities to reach those of control plots, while both mid- and late summer required only one month to reach control plot levels.
Vegetation Types: Riparian and Wetlands
MLRA Ecoregions: Not Applicable
Agrovoc Control Words: Riparian zones Rangelands Weeds
Article Review Type: refereed
Article Type: Experimental Research
Keywords: weed density, wetland weed, flooding, lythrum salicaria l., mechanical control, purple loosestrife, simulated grazing
Annotation: This study only examined clipping purple loosestrife once during the growing season, a second or third clipping may produce effective control.
-
Direct link not available.
-