University of
Nebraska		 Ent Web Logo Department
of Entomology

Insecticides for Control of Thrips in Dry Beans

Updated March 11, 2003 by Gary Hein and John Thomas

Economic Threshold:
Thrips populations are more prevalent during dry periods, and populations can be reduced by rainfall or sprinkler irrigation. Little work has been done to establish treatment thresholds for thrips. Onion thrips: Consider treatment if there are more than 15 thrips per plant and damage (cupping of the leaves) is observed. Western flower thrips: Five thrips per blossom can reduce pod numbers on the plant; however, economic losses may not occur until greater thrip numbers are reached.

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.

View this file in Acrobat PDF format

IRAC Mode of Action Classification:
  • Group 1 = Acetylcholine esterase inhibitors; 1A = Carbamates, 1B = Organophosphates
  • Group 3 = Sodium channel modulators
  • Group 5 = Nicotinic acetylcholine receptor agonists (allosteric), Spinosyns
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
1B R Di-Syston 15%
Di-Syston 8		 disulfoton 15%: 6 - 12 oz/1000 ft
8: 0.9 - 1.9 oz/1000 ft 		Apply at planting or post emergence side dress. PHI 60 days. REI 72 hrs.
5 R Entrust spinosad 1.5 - 2 oz PHI 3 days. REI 4 hrs.
1A R Lannate SP,
LV		 methomyl SP: 0.5 - 1 lb
LV: 1.5 - 3pts		 PHI 14 days. REI 48 hrs.
3 R Mustang,
Fury		 zeta-cypermethrin 3.4 - 4.3 oz PHI 21 days. REI 12 hrs.
1B R Orthene,
Acephate 75
(multiple formulations)		 acephate 0.5 - 1 lb ai
see label for rates		 PHI 14 days. REI 24 hrs.
1A Sevin*
(multiple formulations),
Carbaryl 4L*		 carbaryl 1 lb ai
see label for rates		 PHI 21 days. REI 12 hrs.
5 R SpinTor 2SC
Success		 spinosad 4.5 - 6 oz PHI 28 days. REI 4hrs.
1B R Phorate 20G
Thimet 20G		 phorate 4.5 - 7 oz/1000 ft Apply at planting. PHI 60 days. REI 72 hrs.
Nebraska EntWeb > Biology and Treatment Recommendations >