Grain Sorghum/Sugarcane Aphid Insecticide Seed Treatment Test Angus Catchot/David Kerns Mississippi State University/Louisiana State University Sorghum – Sugarcane Aphid Research Exchange Meeting Dallas, TX January 3 – 4, 2017

Collaborators Name Affiliation Trial Location Plant Date Spray David Kerns LSU Macon Ridge, LA 4/15/16 7/15/16 Angus Catchot MSU Starkville, MS 5/1/16 8/15/16 Scott Stewart UT Jackson, TN 7/8/16 Mike Brewer Corpus Crist, TX David Buntin Griffin, GA Gus Lorenz Mo Way

Introduction Grain Sorghum/Sugarcane Aphid Insecticide Seed Treatment Test Interpretive Intent Determine the efficacy and residual activity of neonicotinoid seed treatments towards sugarcane aphids in seedling grain sorghum Determine if protecting seedling grain sorghum from aphids results in an increase in yield (optional)

Materials & Methods Grain Sorghum/Sugarcane Aphid Insecticide Seed Treatment Test Plant seed treatments and/or In-furrow sprays Agronomic data Aphid counts (seasonal) Yield (optional)

Mississippi State University Starkville, MS

Mississippi State University Starkville, MS

Louisiana State University Macon Ridge, LA

Louisiana State University Macon Ridge, LA

University of Tennessee Jackson, TN

University of Tennessee Jackson, TN

Texas A&M Corpus Christi, TX

Additional Sites

University of Arkansas

University of Arkansas

Texas A&M Mo Way, Beaumont, TX

Texas A&M Mo Way, Beaumont, TX

Texas A&M Mo Way, Beaumont, TX

Texas A&M Mo Way, Beaumont, TX

University of Georgia David Buntin, Griffin, GA

Picture Slide

Key Learnings Sivanto in-furrow consistent Seed Treatments Imperative but performance inconsistent among locations Will require additional foliar treatments Results depend highly on infestation timing/Early vs Late Yield dependent on severity and duration of infestation

Next Steps Expanded Testing of Sivanto in-furrow Yield is necessary Soil type/Rain may influence longevity Greatly simplify protocol

Discussion