These proceedings contain 61 papers classified under sections on agroecology, ecology of weed communities, integrated weed management, herbicide resistance, and invasive plants. Specific topics covered include the following: reduction of weed growth by cutting and competition; evaluation of weed diversity; biodiversity of medicinal plant species in the segetal communities in the Opole region (Poland); simulation of insect resistance in gene flow study between Brassica napus and wild B. juncea; effects of the harvesting season of sugarcane on weed growth dynamic in La Reunion Island; impact of volunteer rape on the productivity of barley; relationship between biomass and seed production by Alopecurus myosuroides after herbicide treatment; weed emergence patterns in winter cereals under zero tillage in dry land areas; size and composition of the weed seed bank after 12 years of continuous application of different fertilizer systems; multi-criteria evaluation of cropping systems prototypes based on integrated weed management; a rapid test of glyphosate resistance in ryegrass; cross resistance in Sinapis alba to ALS-inhibiting herbicides; resistance to glyphosate in Europe; and herbicide-resistant weeds in Iran.
