University of
Nebraska		 Ent Web Logo Department
of Entomology

Insecticides for Control of Western Bean Cutworm in Dry Beans

Updated March 11, 2003 by Gary Hein and John Thomas

Economic Threshold:
Sampling for these cutworms in dry beans is very difficult. Pheromone trap sampling can be used to determine risk potential for a field. If a cumulative total of 1000 moths are trapped before the peak catch, the field would be in a high risk category where damage may develop. Cutworm larval presence in adjacent corn fields and pod feeding within the bean field can be checked to further verify the need for treatment. Treatments should be applied 10 to 20 days after peak pheromone flights in the area.

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
  • Group 2 = GABA-gated chloride channel antagonists; 2A = Cyclodiene organochlorines
  • Group 3 = Sodium channel modulators
R = Restricted-Use Product * = Suitable for chemigation ai = active ingredient REI = Re-Entry Interval
PHI = Pre harvest 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 PHI 21 days. REI 12 hrs.
3 R Mustang*,
Fury*		 zeta-cypermethrin 1.4 - 4.3 oz PHI 21 days. REI 12 hrs.
2A R Phaser
(multiple formulations)
Thiodan
(multiple formulations)		 endosulfan 10 lb ai
see label for rates		 PHI 3 days. REI 24 hrs.
1A Sevin*
(multiple formulations)
Carbaryl 4L*		 carbaryl 1 lb ai
see label for rates		 PHI 21 days. REI 12 hrs.
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