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Insecticides Labeled for Use Against
Larvae of the Army Cutworm, Euxoa auxiliaris,
in South Dakota during the 2008 Season

 Dr. Mike Catangui, Associate Professor / Entomologist

 

 

 

Reminder:  Some alfalfa insecticides may not be labeled for use on wheat.

 

For Use on Wheat

Brand name

Active ingredient

Product per acre

Re-entry interval (hours)
Baythroid XL * beta-cyfluthrin 1.0 -1.8 fluid ounces

12
Cobalt * chlorpyrifos + gamma-cyhalothrin 13-25 fluid ounces

24

Lorsban 4E *

chlorpyrifos

1 pint

24
Mustang MAX 4EC * zeta-cypermethrin 1.28 - 4.00 fluid ounces

12
Proaxis * gamma-cyhalothrin 1.92 - 3.20 fluid ounces

24

Warrior *

lambda-cyhalothrin

1.92 - 3.20 fluid ounces

24

       army_cutworm_larva.jpg (63519 bytes)
Army Cutworm Larvae on Alfalfa
(click thumbnail  for a bigger image)

For Use on Alfalfa

Brand name

Active ingredient

Product per acre

Pre-harvest interval (days)

Baythroid XL *

beta-cyfluthrin

0.8  - 1.6 fluid ounces

7

Cheminova Methyl 4EC *

methyl parathion

 0.5 - 1.0 pint 15

Cobalt *

 chlorpyrifos + gamma-cyhalothrin 13-26 fluid ounces 7 - 21 depending on rate used

Lorsban 4E  *

chlorpyrifos

1 - 2 pints

14 - 21 depending on rate used
Mustang MAX EC * zeta-cypermethrin 2.24 - 4.00 fluid ounces

7

Pounce 3.2 EC *

permethrin

2 - 8 fluid ounces

0 - 14 depending on rate used
Proaxis * gamma-cyhalothrin 1.92 - 3.20 fluid ounces

7

Sevin XLR PLUS

carbaryl

1.0 - 1.6 quarts

7

Warrior *

lambda-cyhalothrin

1.92 - 3.20 fluid ounces

7

* Insecticides with asterisks are restricted use insecticides.  Always read and follow label directions.

Economic Thresholds:  2 larvae per square foot on thin stand of wheat or alfalfa.
                                      4 larvae per square foot on thick stand of wheat or alfalfa. 

For an excellent source of biological information and pictures of army cutworms
kindly visit the University of Nebraska Department of Entomology by clicking on
the addresses below:

http://www.ianr.unl.edu/pubs/insects/g1145.htm
http://www.ianr.unl.edu/ianr/entomol/images/smgrains/cutworms/armycutw.htm

| Back to SDSU Extension Entomology |

Prepared by Mike Catangui on March 15, 2000.  Last updated on April 16, 2008 by Mike Catangui.