University of
Nebraska		 Ent Web Logo Department
of Entomology

Insecticides for Control of Cutworms in Sunflower

Updated May 5, 2006 by Gary Hein and John Thomas

Economic Threshold:
Treat if there is one or more cutworms per square foot, or if plant stand losses are approaching the lower limits for optimum plant population. Cutworms longer than one inch are likely to cease feeding and pupate before causing significant additional damage.

This list is not inclusive. See http://www.greenbook.net or other resources for additional registrations.
This information is presented in abbreviated form. Be sure to consult the label for additional information and restrictions.

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IRAC Mode of Action Classification:
  • Group 1 = Acetylcholine esterase inhibitors; 1A = Carbamates, 1B = Organophosphates
  • Group 3 = Sodium channel modulators
R = Restricted-Use Product * = Suitable for chemigation ai = active ingredient REI = Re-Entry Interval
Mode of
Action		 Product
Name		 Common
Name		 Rate
(Formulation/Acre)
(unless otherwise noted)		 Restrictions/Comments
3 R Asana XL* esfenvalerate 5.8 - 9.6 oz Do not apply within 28 days of harvest. REI 12 hrs.
3 R Baythroid 2* cyfluthrin 0.8 - 1.6 oz Do not apply within 30 days of harvest. REI 12 hrs.
1B R Lorsban 4E,
Nufos 4E		 chlorpyrifos 2 pts Postemergence treatment. Do not apply within 42 days of harvest. REI 24 hrs.
1B R Lorsban 4E,
Nufos 4E		 chlorpyrifos 2 - 4 pts Preplant incorporation treatment. REI 24 hrs.
1B Lorsban 15G,
Nufos 15G		 chlorpyrifos 8 oz/1000 row ft At plant band treatment. REI 24 hrs.
3 R Proaxis* gamma-cyhalothrin 1.92 - 3.2 oz Do not apply within 45 days of harvest. REI 24 hrs.
1A Sevin*,
Carbaryl 4L
(multiple formulations) 		carbaryl 1.5 lbs ai See the label for notes. Do not apply within 60 days of harvest. REI 12 hrs.
3 R Warrior,*
generics		 lambda-cyhalothrin 1.92 - 3.2 oz Do not apply within 45 days of harvest. REI 24 hrs.
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