Pecan Weevil vs Japanese Beetle

Side-by-side species comparison

Attribute Pecan Weevil Japanese Beetle
Scientific Name Curculio caryae Popillia japonica
Order Coleoptera Coleoptera
Family Curculionidae Scarabaeidae
Size 8-12 mm 8-12 mm
Habitat Orchards Gardens
Diet Parasitoids Herbivores
Regions Eastern and Southern United States North America, East Asia, Europe
Conservation Least Concern Not Evaluated

Pecan Weevil

A brown weevil with a long snout that is a significant pest of pecan and hickory trees. Larvae develop inside the nuts over several weeks.

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Did You Know?

Its larvae remain underground in a resting state for up to three years before finally pupating.

Japanese Beetle

An iridescent green and copper beetle that skeletonizes leaves of over 300 plant species. Larvae are white grubs that damage lawns and turf.

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Did You Know?

Japanese beetles release aggregation pheromones that attract more beetles, leading to mass feeding frenzies on plants.