Large Milkweed Bug

Natural Habitat

Commonly found in fields, meadows, gardens, and other areas where milkweed plants (Asclepias species) grow, as milkweed is their primary host plant.

Diet & Feeding

Mainly milkweed seeds, but also feed on stems and leaves of milkweed plants by piercing them and sucking out plant sap. They also consume the nectar from milkweed flowers.

Behavior Patterns

Large groups of milkweed bugs, especially nymphs, are commonly found feeding on milkweed plants. They are sap-feeders and use their proboscis to extract nutrients from the plant. They are known for their aposematic (warning) coloration, which deters predators due to the toxins they sequester from the milkweed.

Risks & Benefits

Generally considered a minor pest in gardens, as large infestations can damage milkweed plants, which are crucial for monarchs. However, they are also part of the natural ecosystem and food chain. They are not harmful to humans or pets.

Identified on: 8/23/2025