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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Sunflower and Plant Biology Research » Research » Publications at this Location » Publication #234118
Title: Efficacy of foliar applied insecticides and adjuvants against seed-feeding pests on sunflower, 2007

Author
item KNODEL, JANET - NORTH DAKOTA STATE UNIV
item Charlet, Laurence
item BEAUZAY, PATRICK - NORTH DAKOTA STATE UNIV

Submitted to: Arthropod Management Tests
Publication Type: Other
Publication Acceptance Date: 3/15/2009
Publication Date: 9/1/2009
Citation: Knodel, J.J., Charlet, L.D., Beauzay, P.B. 2009. Efficacy of Foliar Applied Insecticides and Adjuvants Against Seed-Feeding Pests on Sunflower, 2007. Arthropod Management Tests. 34:F75. 2 p.

Interpretive Summary: The efficacy of selected insecticide treatments were assessed for injury caused by sunflower seed-feeding insect pests in research plots at the North Dakota State University Prosper Research Site near Amenia, ND, in 2007. Applications were applied at the beginning of bloom using a tractor mounted sprayer. At harvest, heads were removed, dried, threshed, seed weight determined, and the percentage of seeds damaged by each insect species calculated. Levels of seed damage from the banded sunflower moth and red sunflower seed weevil were low in all treatments with none higher than 7% damage. For banded sunflower moth, no treatments had significantly lower damage than the untreated check. Damage from red sunflower seed weevil was significantly lower in only the insecticide plots treated with the high rate of Warrior. This was the only treatment that resulted in a significantly higher seed weight compared to the untreated check.

Technical Abstract: The efficacy of selected insecticide treatments were assessed for injury caused by sunflower seed-feeding insect pests in research plots at the North Dakota State University Prosper Research Site near Amenia, ND, in 2007. Applications were applied at the beginning of bloom using a tractor mounted sprayer. At harvest, heads were removed, dried, threshed, seed weight determined, and the percentage of seeds damaged by each insect species calculated. Levels of seed damage from the banded sunflower moth and red sunflower seed weevil were low in all treatments with none higher than 7% damage. For banded sunflower moth, no treatments had significantly lower damage than the untreated check. Damage from red sunflower seed weevil was significantly lower in only the insecticide plots treated with the high rate of Warrior. This was the only treatment that resulted in a significantly higher seed weight compared to the untreated check.