Navel Orangeworm vs Asiatic Rice Borer

Side-by-side species comparison

Attribute Navel Orangeworm Asiatic Rice Borer
Scientific Name Amyelois transitella Chilo suppressalis
Order Lepidoptera Lepidoptera
Family Pyralidae Crambidae
Size 20-28 mm wingspan 20-28 mm wingspan
Habitat Deserts & Drylands Farmland
Diet Omnivores Omnivores
Regions North America Asia, Southern Europe
Conservation Not Evaluated Not Evaluated

Navel Orangeworm

The most damaging pest of almonds, walnuts, and pistachios in California. Larvae bore into nuts and contaminate them with frass and fungal spores.

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Did You Know?

It promotes aflatoxin contamination by introducing Aspergillus fungi into damaged nuts.

Asiatic Rice Borer

A major pest of rice across Asia, where larvae bore into tillers and stems. Heavy infestations cause whiteheads and significant yield losses.

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Did You Know?

It is one of the target pests for Bt rice varieties currently under development in China.