Corn earworm can be a devastating pest of sweet corn. This guide provides an in-depth management plan for this pest.

Helicoverpa zea, commonly known as the corn earworm, is a species (formerly in the genus Heliothis) in the family Noctuidae. [1] The larva of the moth Helicoverpa zea is a major …

The corn earworm can cause serious economic damage to fresh market and processing sweet corn and hybrid dent seed corn. Also known as the tomato fruit worm, the larvae feed on field …

In its third generation, corn earworm is the most economically important insect pest in North Carolina and attacks a variety of crops in late July and August (cotton, peanuts, sorghum, …

Jul 14, 2025 · Corn earworms steal some of the joy as a common pest that can pop up throughout the season, especially with later yields. Garden expert Katherine Rowe explores how to …

Aug 19, 2024 · With this documentation of pyrethroid resistance, we strongly recommend alternating the mode of action used for corn earworm in sweet corn and popcorn. We’ve …

Jun 19, 2023 · Here, it is primarily a pest in sweet corn, and we'll use the name of corn earworm, and the acronym CEW. The corn earworm is a moth in the insect family Noctuidae. As with all …

The corn earworm may be present throughout the season but is most abundant during August and September. Larvae feed on leaves, tassels, the whorl, and within ears, but the ears are …

Below is guidance on how to identify corn earworms and their damage, as well as suggestions on how to manage them. For information on other corn pests, see OSU Fact Sheet CR-7192.

The corn earworm, also referred to as the bollworm or tomato fruitworm, is a major pest of sweet corn in Colorado. Caterpillars prefer to feed on ears of corn, which results in the destruction of …