What You Can Do

Angoumois grain moth prevention and control starts with a careful inspection to identify infested products. It is important to routinely check the walls and ceiling for the presence of larvae and pupae including:

• Disposing of products that are infested.
• Removing holiday decorations such as Indian corn or similar items.

Appearance

• Size: They are small in size with a front wingspan about 3/16 inches. Full-grown larvae are about 1/8 inches long.
• Color: They are yellowish in color. Full-grown larvae are usually yellowish-white with a yellowish-brown head.
• Characteristics: A very important distinguishing characteristic is a narrow projection that extends from the tip of their hind wing.

Diet

Adult moths do not feed on grains. Larvae feed on:

• Corn kernels
• Grains
• Seeds
• Wheat

Habitat

When found in homes, common places for these pests include:

• Popcorn
• Decorative ears of corn.
• Decorative boxes of seeds.

Life Cycle

The complete life cycle (egg to adult) can be completed in as little time as five weeks.

• Egg: Eggs are laid on or near grain either in the field or during storage.
• Larval: Larvae then penetrate the kernel and continue to feed until mature, while creating and enlarging a cavity within the kernel.
• Pupal: When mature, the larvae eats a channel to the outside of the seed and spins a silken cocoon.
• Adult: They then pupate within the kernel and emerge as an adult moth.