2009-04-272009-04-271983https://hdl.handle.net/10365/3701Pests -- Control.Weeds.Leafy spurge.Preliminary investigations on the herbicidal efficacy of compounds of natural origin and of experimental synthetic herbicides on greenhouse-grown leafy spurge plants1983 Leafy Spurge Symposium Proceedings; Sundance, WY; June 21-22, 1983