Willow Sawfly vs Southwestern Corn Borer

Side-by-side species comparison

Attribute Willow Sawfly Southwestern Corn Borer
Scientific Name Nematus salicis Diatraea grandiosella
Order Hymenoptera Lepidoptera
Family Tenthredinidae Crambidae
Size 7-9 mm (adult) 25-35 mm wingspan
Habitat Wetlands Farmland
Diet Herbivores Herbivores
Regions Europe Southern United States, Mexico
Conservation Not Evaluated Not Evaluated

Willow Sawfly

A defoliator of willows across Europe found in wetlands and riparian areas. Larvae feed gregariously on willow leaves from May to autumn.

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Did You Know?

Multiple overlapping generations allow continuous feeding pressure throughout the growing season.

Southwestern Corn Borer

A pale moth whose larvae bore into corn stalks and girdle stems from the inside, causing extensive lodging. It is a major corn pest in the southern Great Plains of the United States.

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Did You Know?

Overwintering larvae girdle the corn stalk from the inside, deliberately weakening it so the stalk falls and provides insulated shelter.