Late-planted corn can be subject to increased damage from lepidopteran worm pests such as:
European corn borer (ECB)
Southwestern corn borer (SWCB)
Fall armyworm (FAW)
Corn earworm (CEW)
For optimum control, apply DuPont™ Prevathon® insect control before larvae tunnel into plant or ear.
European Corn Borer (ECB)
Apply DuPont Prevathon® insect control insect control at the V10 stage, coinciding with moth flight and egg laying, or when scouting or traps indicate presence of moths, eggs or larvae.
Southwestern Corn Borer (SWCB)
Apply DuPont Prevathon® insect control prior to economic threshold of 20% to 25% infested plants or when pheromone traps indicate heavy moth flights.
Fall Armyworm (FAW)
Apply DuPont™ Prevathon® insect control at first indications of larvae in field edges or adjacent areas.
Western Bean Cutworm (WBCW)
Apply DuPont Prevathon insect control when scouting from late June through mid August indicate ~8% of plants have egg masses or small larvae and/or when larvae have hatched and 95% of tassels have emerged.
Multiple larvae per ear possible. Heavy infestations may result in 50-60% damaged kernels. Several larvae per plant can reduce grain yield by 15-20%.
Apply DuPont Prevathon insect control as part of a comprehensive CEW control program. Within this program, DuPont Prevathon insect control could be applied when scouting indicates presence of eggs and/or at brown silks for 21 days residual control.
Distinguishing Armyworms and Earworms
True Armyworm (AW) - Smooth cuticle; subdued colors. DuPont Prevathon insect control is not labeled for true armyworm.
Fall Armyworm (FAW)
Brown/gray larva with distinct tubercles along body
Three thin white stripes down the back and a distinct white inverted “Y” on head (see image below)
Young larvae may be difficult to distinguish from corn earworm (CEW)
Corn Earworm (CEW)
Bright, variable colors
Cuticle has “unshaven” look
This reference guide is not intended as a substitute for the product label for Prevathon®. The product label contains important precautions, directions for use and product warranty and liability limitations that must be read before using the product. Applicators must be in possession of the product label at the time of application. Always read and follow all label directions and precautions for use when using any pesticide alone or in tank-mix combinations.
DuPont™ and Prevathon® are trademarks or registered trademarks of E. I. du Pont de Nemours and Company or its affiliates.