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

Aphid species
Photo Credit: Jeff Hahn, Univ. of MN Aphid species
Photo Credit: Jeff Hahn, Univ. of MN

Aphid species
Uroleucon spp.
Size: Up to 1/8 in long

Where/When: Feeds on petals and leaves of a variety of flowers including black-eyed Susan (Rudbeckia), coneflower, and sunflower. Active spring and summer; it is particularly noticeable from mid to late summer.

Significance: Generally does not cause damage. Could cause discoloration of flower petals and leaves, resulting in wilting if populations are high.
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