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Insecticide Treatment Options for Spider Mites in Field Corn

Last Updated on December 21, 2011

Economic Threshold

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.

IRAC Mode of Action Classification:
  • Group 1 = Acetylcholine esterase inhibitors; 1B = Organophosphates
  • Group 3 = Sodium channel modulators
  • Group 10 = Mite growth inhibitors; 10A = Hexythiazox
  • Group 12 = Inhibitors of oxidative phosphorylation, distuptors of ATP formation (inhibitors of ATP synthase); 12C = Propargite
  • Group 23 = Inhibitors of lipid synthesis
R = Restricted-Use Product

Mode Of
Action
Product
Name
Common
Name
Rate
(Formulation/Acre)
Restrictions/Comments
3 R

Brigade 2EC,
Fanfare 2EC

 bifenthrin 5.12-6.4 fl oz

Apply a minimum of 2 gallons of finished spray per acre by aircraft or 10 gallons with ground equipment.
12C R Comite propargite 32-48 fl oz

Treat when leaves are dry. Treat early when corn is small enough (3-4 ft) to allow good coverage. Two gallons per acre minimum spray volume by air and 20 gallons per acre minimum spray volume by ground. May be applied once per year.
12C R Comite II propargite

Early application of
18 fl oz followed by
Mid-Late season application
of 36 fl oz OR
Single application of
36-54 fl oz

Treat when leaves are dry. Treat early when corn is small enough (3-4 ft) to allow good coverage. Three gallons per acre minimum spray volume by air and 20 gallons per acre minimum spray volume by ground.
1B Dimethoate 4EC dimethoate 0.66-1.0 pt

Do not apply within 14 days of harvest (forages) or 28 days (grain). Do not apply during the pollen-shed period. Field corn only.
3 R Hero

zeta-cypermethrin
and bifenthrin

 10.3 fl oz PHI 30 days for grain and 60 days for forage. REI 12 hours.
23 Oberon 2SC spiromesifen 5.7-16.0 fl oz

Preharvest interval; 5 days for green forage and silage, 30 days for grain and stover. Minimum application volume; 10 GPA by ground, 5 GPA by air. May be chemigated. Maximum of 2 applications per crop season.
10A Onager hexythiazox 10-24 fl oz

*May only be applied west of highway 281 in Nebraska. Preharvest interval; 45 days for forage, grain and stover. Minimum application volume; 15-20 GPA by ground, 5 GPA by air. May be applied once per year.