Friendly illustration of aphids

Aphids

Aphidoidea (many species) · Garden & Overwintering Pests

Aphids are tiny, soft-bodied insects that cluster on new leaves and stems and suck plant sap. They leave sticky honeydew that can draw ants and black sooty mold, but they are harmless to people and pets.

Look for: Pear-shaped, usually green, with two tiny tubes sticking out the back end, often packed together on the newest growth.

Quick facts

Size1.5-3 mm
Legs6
Usual colorsgreen
Where in the homeGarden, Living Room
ActiveMar, Apr, May, Jun, Jul, Aug, Sep, Oct
PeakApr, May, Jun
U.S. rangeFound throughout the U.S. on garden plants, and on houseplants indoors in any season.
Bites or stings peopleNo

Seasons are typical across much of the U.S. and vary by region.

Seasonal pest calendarAphids: active Mar, Apr, May, Jun, Jul, Aug, Sep, Oct; peak Apr, May, Jun.JanFebMarAprMayJunJulAugSepOctNovDecAphids

Peak season Active Typical across much of the U.S.; varies by region.

Sources

Not sure this is your bug? Try the Bug Identifier or ask your local Cooperative Extension office.