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University of Minnesota Extension

Extension > Garden > Diagnose a problem > What insect is this? > Trees and shrubs > Not obvious insects: Insects that do not resemble insects > Wooly alder aphid

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Woolly alder aphid

Prociphilus tessellates

Woolly alder aphid

Jeff Hahn, University of Minnesota Extension

Description: 1/8 inch long. Pear shaped gray bodies covered with white waxy strands.

Where/When: Found on the leaves and twigs of silver maples during spring and on twigs and branches of alders during summer.

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