This section archives survey results for the most common and troublesome weeds in the U.S. and Canada. This is a voluntary survey offered to the members of the:
- Weed Science Society of America (WSSA)
- Aquatic Plant Management Society (APMS)
- Canadian Weed Science Society (CWSS)
- Northeastern Weed Science Society (NEWSS)
- North Central Weed Science Society (NCWSS)
- Southern Weed Science Society (SWSS)
- Western Society of Weed Science (WSWS)
Common weeds refer to those weeds you most frequently see, while troublesome weeds are those that are most difficult to control (but may not be widespread). A baseline survey was conducted in 2015 and surveyed weeds in 26 different crop, non-crop, aquatic, and natural areas. For the subsequent years 2016-2018, the survey is divided into a 3 year rotation for weeds in 1) broadleaf crops; 2) grass crops; and 3) aquatic/non-crop areas. For more details of the survey, contact Lee Van Wychen (Lee.firstname.lastname@example.org), Science Policy Director for the National and Regional Weed Science societies.
- 2017 Survey for weeds in grass crops, pasture and turf
- Crops/systems surveyed: 1) corn, 2) rice, 3) sorghum, 4) spring cereal grains, 5) winter cereal grains, 6) pastures, rangeland, other hay, and 7) turf (Survey is closed now and results will be posted here soon).
- 2016 Survey for weeds in broadleaf crops, fruits, & vegetables
- Crops/systems surveyed: 1) alfalfa, 2) canola, 3) cotton, 4) fruits, 5) peanut, 6) pulse crops, 7) soybean, 8) sugarbeet, 9) vegetables-cole crops, 10) vegetables-cucurbits, 11) vegetables-fruiting, and 12) vegetables-other
- Suggested citation: Van Wychen L (2016) 2016 Survey of the Most Common and Troublesome Weeds in Broadleaf Crops, Fruits & Vegetables in the United States and Canada. Weed Science Society of America National Weed Survey Dataset. Available: http://wssa.net/wp-content/uploads/2016_Weed_Survey_Final.xlsx
- WSSA Press Release on 2016 Survey Results
- 2015 Baseline survey for 26 different crop, non-crop, aquatic, and natural areas
- Crops/systems surveyed: 1) alfalfa, 2) aquatic – irrigation & flood control, 3) aquatic – lakes, rivers, reservoirs, 4) aquatic – ponds, 5) canola, 6) corn, 7) cotton, 8) forestry, 9) fruits & nuts, 10) natural areas – parks, wildlife refuges, 11) ornamentals, 12) pastures – rangeland, other hay, 13) peanut, 14) pulse crops, 15) rice, 16) right-of-ways – rail, road, utility, 17) sorghum, 18) soybean, 19) spring cereal crops, 20) sugarbeet, 21) turf, 22) vegetables – cole crops, 23) vegetables – cucurbits, 24) vegetables – fruiting, 25) vegetables – other, and 26) winter cereal crops.
- Suggested citation: Van Wychen L (2016) 2015 Baseline Survey of the Most Common and Troublesome Weeds in the United States and Canada. Weed Science Society of America National Weed Survey Dataset. Available: http://wssa.net/wp-content/uploads/2015_Weed_Survey_Final.xlsx.
- 2018 Survey – Weeds in Aquatic Systems, Non-Crop, and Natural areas