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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 #235649
Title: Efficacy of foliar applied insecticides and adjuvants against seed-feeding pests on sunflower, 2008

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, 2008. Arthropod Management Tests. 34:F77. 2 p.

Interpretive Summary: Insecticide treatments were assessed for their effectiveness in management of damage caused by sunflower seed-feeding insect pests. The research plots were located at the North Dakota State University Prosper Research Site near Amenia, ND, in 2008. 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. A comparison of damage caused by banded sunflower moth feeding showed that all insecticide treatments significantly reduced feeding injury compared to the untreated check. All but one insecticide treatment had significantly less damage from red sunflower seed weevil feeding than the untreated check. The results of this investigation show that new materials will eventually be available to assist growers in managing seed-feeding sunflower insect pests when incidence of these insects exceeds recommended threshold treatment levels.

Technical Abstract: Insecticide treatments were assessed for their effectiveness in management of damage caused by sunflower seed-feeding insect pests. The research plots were located at the North Dakota State University Prosper Research Site near Amenia, ND, in 2008. 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. A comparison of damage caused by banded sunflower moth feeding showed that all insecticide treatments significantly reduced feeding injury compared to the untreated check. All but one insecticide treatment had significantly less damage from red sunflower seed weevil feeding than the untreated check. The results of this investigation show that new materials will eventually be available to assist growers in managing seed-feeding sunflower insect pests when incidence of these insects exceeds recommended threshold treatment levels.