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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Beetles, bugs, ants, and other insects without obvious wings - 1/4 inch - 1/2 inch long > Squash bug

Squash bug
Photo Credit: Jeff Hahn, Univ. of MN Squash bug
Photo Credit: Jeff Hahn, Univ. of MN

Squash bug
Anasa tristis
Size: 1/10 - 5/8 inch long

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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