Bio-Control of Leafy Spurge in Support of Recovery of Species at Risk Year_II (SAR FieldReport 2002)

Leafy spurge (Euphorbia esula) is a deep-rooted perennial noxious weed that has rapidly spread across much of North America, especially throughout the western states and provinces. Leafy spurge will readily establish itself in a variety of environments, although it is quick to take advantage of disturbed sites. It can be found in Manitoba in pastures, agricultural lands, along roadsides and in wooded areas (Oliver, n.d.). Areas with high spurge densities and distributions also occur in the dry mixed grass prairie/sand dune habitat of the western spiderwort where there is less competition from native plants.