Utah State University Extension
Russian olive (Elaeagnus augustifolia L.) is a small, thorny tree that is native to Europe. Russian olive readily invades fence lines, ditch banks, and pastures and displaces native species to form a monoculture in riparian areas.
Worwood, Dennis and Patterson, Ronald, "Russian Olive Control - Basal Bark Treatment" (2011). All Current Publications. Paper 1073.