2009-04-252009-04-251979https://hdl.handle.net/10365/3635Agricultural pests -- Cultural control.Pests -- Control.Weeds.Leafy spurge.Cropping cultivation, and herbicides to eliminate leafy spurge and prevent reinfestation1979 Leafy Spurge Symposium Proceedings; Bismarck, ND; June 26-27, 1979