Abstract: Weeds have a significant impact on the production of cucurbit crops in Australia, and yet relatively little work has been conducted to develop integrated and sustainable forms of weed management in these crops. In this project we sought to scope the impact of weeds on cucurbit production, identify current techniques used by growers and assess their effectiveness and sustainability, and explore innovative approaches used in Australia and overseas. The research included a review of Australian and international literature, and consultation with cucurbit growers, herbicide producers and distributors. Weeds were reported to have a significant impact on cucurbit crop yield and quality, making crop management problematic. Significant weeds include fat hen (Chenopodium album), blackberry nightshade (Solanum nigrum), caltrop or cathead (Tribulus terrestris), pigweed/