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2008 National Sunflower Association Survey Project Leader: Dr. Duane Berglund, Retired NDSU Extension Agronomist and Professor Emeritus- Crop Science North Dakota-77 Minnesota-18 South Dakota-26 Kansas-14 Colorado-7 Oklahoma 2 Manitoba 18 T0TAL- 162 2008 Sunflower Survey- # Fields
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2008 National Sunflower Association Survey Project Leader: Dr. Duane Berglund, Retired NDSU Extension Agronomist and Professor Emeritus- Crop Science
North Dakota-77 Minnesota-18 South Dakota-26 Kansas-14 Colorado-7 Oklahoma 2 Manitoba 18 T0TAL- 162 2008 Sunflower Survey- # Fields
2008 Sunflower Survey • Only counties with 20,000 planted Acres or more • One field stop per 10,000 Acres • Fields Surveyed in 2005- 146 • Fields Surveyed in 2006 – 162 • Fields Surveyed in 2007 – 158 • Fields Surveyed in 2008 -- 162
Disease 17 Plant spacing 12 Weeds 8 Birds 6 Lodging 6 Other 6 Drought 5 Hail 2 Insects 1 Herb. Dam. 0 Drowned outs 0 No Problem 13 2008 # 1 Yield Limiting Factors- N. Dak. (77 Fields)
Disease 3 Plant spacing 7 Weeds 9 Birds 3 Lodging 4 Other 5 Drought 3 Hail 0 Insects 5 Herb. Dam. 1 Drowned outs 1 No Problem 38 2008 # 2Yield Limiting Factors- N. Dak. (77 Fields)
Disease 10 Plant spacing 1 Weeds 2 Birds 0 Lodging 0 Other 2 Drought 0 Hail 0 Insects 1 Herb. Dam. 0 Drowned outs 0 No Problem 2 2008 # 1Yield Limiting Factors- Minnesota (18 Fields)
Disease 1 Plant spacing 2 Weeds 2 Birds 2 Lodging 2 Other 0 Drought 0 Hail 1 Insects 2 Herb. Dam. 0 Drowned outs 0 No Problem 6 2008 # 2Yield Limiting Factors- Minn. (18 Fields)
Red Rust Incidence in Sunflower Rust Reported
Red Rust Severity in Sunflower Rust Severity Estimated for Fields Where Incidence Reported
North Dakota Kochia Canada Thistle Marshelder Green Foxtail Wild Buckwheat Biennial wormwood Minnesota Common ragweed Biennial wormwood Redroot pigweed Kochia Top Weeds Observed: 2008
Incidence of Grassy Weeds In Sunflower: ND/MN 2006, 2007 & 2008
South Dakota Redroot pigweed Kochia Green foxtail Russian thistle Manitoba Canada thistle Kochia Redroot pigweed Common ragweed Wild mustard Top Weeds in South Dakota and Manitoba: 2008
Kansas weeds Palmer Amaranth Kochia Puncture vine Volunteer Grain Devils Claw Colorado Weeds Russian thistle Redroot pigweed Puncture vine Lanceleaf sage Cocklebur Top Weeds Observed: 2008
2008 Sunflower Survey Sponsored by the National Sunflower Association