Academic Level at Time of Presentation
Senior
Major
Agronomy
List all Project Mentors & Advisor(s)
Dr. Iin Handayani; Dr. Megan Taylor
Presentation Format
Poster Presentation
Abstract/Description
Evaluating Fungicide Efficacy in One and Two-Pass Fungicide Programs
Carson Buchanan
Mentors: Dr. Megan Taylor, Dr. Iin Handayani
Murray State University, Murray, Kentucky, USA Abstract
Plant diseases continually threaten corn yields year after year. This study compared regionally important corn hybrids in a one-pass and two-pass application system. Eight rows of sixteen hybrids were planted in a field in Bargersville, Indiana. These hybrids consisted mostly of regionally important Dekalb hybrids, along with some competitive Pioneer hybrids. The entire field then got a V8 application of Stratego YLD. The field was then split in half and one half of the field got an application of Delaro Complete at R1/R2. In order to quantify yield protection, several measurements were taken. These included green leaf percentage (GLP), push tests, and tip-back ratings. Yield was taken at harvest. Disease ratings were also taken. Diseases present in the field were Southern and Common Rust, Tar Spot, Gray Leaf Spot, Anthracnose, and Corn Smut. The results of this study depended upon the disease packages bred into the hybrid. Hybrids with better rated disease packages tended to protect yield with just the V5 application of Delaro. However, hybrids with lower rated disease packages tended to benefit from the second application of Delaro Complete. This study will help farmers in the future make decisions on what hybrid to plant, along with the fungicide program they need to implement to protect yields.
Key Words: Delaro Complete, Disease, Fungicide, Stratego YLD, Yield
Fall Scholars Week 2025
Research Poster Competition and Presentations, Soil/Crop Management (Agriculture) and Sustainability
Included in
Evaluating Fungicide Efficacy in One and Two-Pass Fungicide Programs
Evaluating Fungicide Efficacy in One and Two-Pass Fungicide Programs
Carson Buchanan
Mentors: Dr. Megan Taylor, Dr. Iin Handayani
Murray State University, Murray, Kentucky, USA Abstract
Plant diseases continually threaten corn yields year after year. This study compared regionally important corn hybrids in a one-pass and two-pass application system. Eight rows of sixteen hybrids were planted in a field in Bargersville, Indiana. These hybrids consisted mostly of regionally important Dekalb hybrids, along with some competitive Pioneer hybrids. The entire field then got a V8 application of Stratego YLD. The field was then split in half and one half of the field got an application of Delaro Complete at R1/R2. In order to quantify yield protection, several measurements were taken. These included green leaf percentage (GLP), push tests, and tip-back ratings. Yield was taken at harvest. Disease ratings were also taken. Diseases present in the field were Southern and Common Rust, Tar Spot, Gray Leaf Spot, Anthracnose, and Corn Smut. The results of this study depended upon the disease packages bred into the hybrid. Hybrids with better rated disease packages tended to protect yield with just the V5 application of Delaro. However, hybrids with lower rated disease packages tended to benefit from the second application of Delaro Complete. This study will help farmers in the future make decisions on what hybrid to plant, along with the fungicide program they need to implement to protect yields.
Key Words: Delaro Complete, Disease, Fungicide, Stratego YLD, Yield