Hemlock Woolly Adelgid vs South American Brown Stink Bug

Side-by-side species comparison

Attribute Hemlock Woolly Adelgid South American Brown Stink Bug
Scientific Name Adelges tsugae Euschistus heros
Order Hemiptera Hemiptera
Family Adelgidae Pentatomidae
Size 0.8-1.5 mm 10-13 mm
Habitat Forests Underground
Diet Sap Feeders Seed Feeders
Regions Asia, North America Brazil, Argentina, Paraguay, Bolivia
Conservation Not Evaluated Least Concern

Hemlock Woolly Adelgid

A devastating invasive pest of eastern hemlock in North America, originally from East Asia. It feeds at the base of needles, killing branches and eventually the tree.

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Did You Know?

It has killed millions of hemlocks from Georgia to Maine since its detection in the 1950s.

South American Brown Stink Bug

A dull brown shield bug and the most economically damaging stink bug in Brazilian soybean agriculture. It feeds on developing seed pods, causing major yield losses.

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Did You Know?

A single bug feeding on a soybean pod for just one day can reduce seed weight by up to 20 percent.