Woolly Apple Aphid vs Keeled Treehopper

Side-by-side species comparison

Attribute Woolly Apple Aphid Keeled Treehopper
Scientific Name Eriosoma lanigerum Entylia carinata
Order Hemiptera Hemiptera
Family Aphididae Membracidae
Size 1-2 mm 4-6 mm
Habitat Orchards Farmland
Diet Gall Makers Sap Feeders
Regions Cosmopolitan in temperate regions North America, Central America, South America
Conservation Least Concern Least Concern

Woolly Apple Aphid

An aphid covered in waxy white filaments that forms colonies on apple tree bark and roots. Heavy infestations cause gall-like swellings on branches and roots.

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Did You Know?

It alternates between elm trees in spring and apple trees in summer across its complex life cycle.

Keeled Treehopper

A small, flattened treehopper with a pronounced dorsal keel running along its pronotum. It is widespread across the Americas on many host plants.

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Did You Know?

Its flat, leaf-like profile makes it look like a tiny bump or bud on a plant stem.