2024
red winged blackbird
Image extract from
J. Duttenhefner presentation

Below are links to the PowerPoint presentations (in PDF format) from the 46th NSA Research Forum held January 10-11, 2024. Click on the title of the presentation to access the file. Presentations are listed in the order in which they appeared in the program. Presentations will be added as files become available

The content of these presentations may not be used without the consent of the author(s).
2023 National Sunflower Production Survey: Yield, Management Practices and Diseases
Leandro Bortolon, NDSU, North Central Ext. Center, Minot, ND

2023 National Sunflower Production Survey: Insects
Jarrad Prasifka, USDA-ARS, Edward T. Schafer Agricultural Research Center, Fargo, ND

Spring Weed Burndown Options for Sunflower
Brian Jenks, NDSU, Minot Res. & Ext. Center, Minot, ND

Know the Enemy: Using Drones to Evaluate Composition and Size of Blackbird Flocks Foraging in Commercial Sunflower
Jessica Duttenhefner, NDSU, Dept. of Biological Sciences, Fargo, ND; Abdelrahman Elsaid, University of North Carolina Wilmington, Dept. of Biological Science, Wilmington, NC; Timothy Greives, NDSU, Dept. of Biological Sciences, Fargo, ND; Page Klug, USDA-APHIS-WS NWRC, North Dakota Field Station, NDSU, Dept. of Biological Sciences, Fargo, ND

Insecticides Management of Red Sunflower Seed Weevil
Janet Knodel, NDSU, Extension Entomology, Fargo, ND; Patrick Beauzay, NDSU, Extension Entomology, Fargo, ND; Patrick Wagner, SDSU, West River Research and Extension, Rapid City, SD; Philip Rozeboom, Bradley McMahus & Adam Varenhorst. SDSU, Dept. of Agronomy, Horticulture, & Plant Science, Brookings, SD

Effects of Early Planting and Early-Maturing Sunflower Hybrids on Damage from the Red Sunflower Seed Weevil
Jarrad Prasifka, USDA-ARS, Edward T. Schafer Agricultural Research Center, Fargo, ND; Adam Varenhorst, SDSU, Dept. of Agronomy, Horticulture, & Plant Science, Brookings, SD; Kristin Simons, NDSU-CREC Carrington, ND; Jeffrey Cluever, USDA-ARS, ETSARC, Fargo, ND; Patrick Wagner, SDSU-WRRF, Rapid City, SD; Sam Ireland, SDSU-DLRF, Pierre, SD

Are Red Sunflower Seed Weevils Resistant to Additional Pyrethroid Active Ingredients
Adam Varenhorst. SDSU, Dept. of Agronomy, Horticulture, & Plant Science, Brookings, SD; Philip Rozeboom, SDSU, Dept. of Agronomy, Horticulture, & Plant Science, Brookings, SD; Patrick Wagner, SDSU, West River Research and Extension, Rapid City, SD; Bradley McMahus SDSU, Dept. of Agronomy, Horticulture, & Plant Science, Brookings, SD; Patrick Beauzay & Janet Knodel, NDSU, Extension Entomology, Fargo, ND

Efficacy of Honeybee-Vectored Clonostachys rosea for Management of Sclerotinia Head Rot in Sunflowers: Final Conclusions from Multi-Year Research
Michael Wunsch, NDSU, Carrington Res. & Ext. Center, Carrington, ND; Venkat Chapara, NDSU, Langdon Res. & Ext. Center, Langdon, ND; Suanne Kallis, Jesse Hafner & Aaron Fauss, NDSU, Carrington Res. & Ext. Center, Carrington, ND

Candidate resistant genes associated with Phomopsis helianthi
Karthika Mohan, NDSU, Dept. of Plant Pathology, Fargo, ND; Denis Colombo, EEA Ing. Agr. Guillermo Covas, Instituto Nacional de Tecnologia Agropecuaria, Anguil, La Pampa, Argentina; Samuel Markell, NDSU, Dept. of Plant Pathology, Fargo, ND; Robert Harveson, University of Nebraska-Lincoln, Panhandle Res. & Ext. Center, Scottsbluff, NE; Febina Mathew, NDSU, Dept. of Plant Pathology, Fargo, ND

Toxin Associated with Phomopsis
Karthika Mohan & Samuel Markell, NDSU, Dept. of Plant Pathology, Fargo, ND; Robert Harveson, University of Nebraska-Lincoln, Panhandle Res. & Ext. Center, Scottsbluff, NE; Febina Mathew, NDSU, Dept. of Plant Pathology, Fargo, ND; Dr. Angel Ugrinov, NDSU, Dept. of Chemistry & Biochemistry, Fargo, ND

Update on the determination of rust (Puccinia helianthi) virulence in Northern Great Plains
Zach Ittel, NDSU, Dept. of Plant Pathology, Fargo, ND; Brent Hulke, USDA-ARS, Edward T. Schafer Agricultural Research Center, Fargo, ND; Robert Harveson, University of Nebraska-Lincoln, Panhandle REC, Scottsbluff, NE; Febina Mathew, Jessica Halvorson & Bryan Hanson, NDSU, Dept. of Plant Pathology, Fargo, ND; Brandt Berghuis, U of Wis.-River Falls, Dept. of Plant and Earth Science, River Falls, WI; Samuel Markell, NDSU, Dept. of Plant Pathology, Fargo, ND

USDA-ARS Sunflower Pathology Research Progress on Sclerotinia and Phomopsis Diseases
William Underwood, USDA-ARS, Edward T. Schafer Agricultural Research Center, Fargo, ND; Lauren Carlson, & Michael McWood, USDA-ARS Sunflower & Plant Biology Research Unit Fargo, ND; Angidi Srushtideep & Israt Zaman, NDSU, Dept. of Plant Pathology, Fargo, ND; Andrea Miasonet-Sanchez & Sam Hening, USDA-ARS Sunflower & Plant Biology Research Unit, Fargo, ND

Managing Rhizopus Head Rot with Fungicides
Robert Harveson, University of Nebraska-Lincoln, Panhandle REC, Scottsbluff, NE; Febina Mathew & Samuel Markell, NDSU, Dept. of Plant Pathology, Fargo, ND

USDA Breeding and Genetics Update
Brent Hulke, USDA-ARS, Edward T. Schafer Agricultural Research Center, Fargo, ND; Nolan Kane, University of Colorado, Boulder, CO

Genetic Control of Salinity Tolerance in the Sunflower Association Mapping Population
James McNellie & Brent Hulke, USDA-ARS, Edward T. Schafer Agricultural Research Center, Fargo, ND; William May, Agriculture and Agri-Food Canada, Indian Head Research Farm, Indian Head, SK Canada

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