Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Beetles, bugs, ants, and other insects without obvious wings - Larger than 1/2 inch long > Squash bug

Squash bug

Anasa tristis

Jeff Hahn, University of Minnesota Extension

Jeff Hahn, University of Minnesota Extension

Description: 1/10 - 5/8 inch long.
Dark brown to black. Flattened with edges of abdomen and undersides that have orange to orange-brown stripes.

Where/When: Feeds on squash, pumpkins and other cucurbits, like cucumbers and melons. Adults appear in May and all life stages are present throughout the growing season.

Significance: Feeding can cause yellowing and wilting. Young plants are more susceptible to injury than older plants.

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