00000nam 2200000za 4500 9.847884 CaOODSP 20241203113640 cr ||||||||||| 171128s1985 onca|||fo f000 0 eng d CaOODSP eng eng fre n-cn--- En13-5/85-36E-PDF Painter, Scott. Short-term impact of harvesting on Eurasian watermilfoil [electronic resource] / by D.S. Painter & J.I. Waltho. Burlington, Ont. : Aquatic Ecology Division, National Water Research Institute, Canada Centre for Inland Waters, [1985]. 23 p. : ill. NWRI ; 85-36 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Eurasian watermilfoil is a nuisance aquatic plant which has invaded many lakes and rivers in Canada. Mechanical harvestingis generally agreed to be the most ecologically sound control method but is criticized because multiple harvests may be required each growing season and non long-term effect on regrowth may be apparent. Environment Canada's research on mechanical harvesting of milfoil examined the short-term effects of cutting to illustrate how to make a harvesting program as efficient as possible and to determine if harvesting stressed the plant. The short-term efficacy of harvesting was dramatically influenced by the timing of the cut in 19 harvesting scenarios examined. A June/August or June/September double cut would appear to be the most desirable scenario with very little advantage in a triple cut"--Managememt perspective. Includes abstract and management perspective in French. gccst Water plants gccst Invasive species Waltho, J. I. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 85-36 (CaOODSP)9.844121 PDF 1.64 MB https://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-36-eng.pdf