Aphids
Nuisance
Image: AI-generated illustration
What it is
Small, soft-bodied plant-feeding insects that suck sap from leaves and stems. Heavy infestations can distort plant growth and produce sticky honeydew that supports sooty mold.
How to recognize it
Small, soft-bodied insects clustered on leaves and stems, with sticky residue on leaves.
Where you will find it
Garden plants, shrubs, trees, and houseplants.
Why it matters
Heavy infestations distort growth and the sticky honeydew grows sooty mold.
What to do
- Photograph the insect and the plant damage and note when you see it.
- Do not apply store-bought products without confirming the pest, since many are harmless or beneficial.
- Contact a licensed lawn and ornamental professional for identification and treatment.
When to call a professional
- Plants or turf are damaged or dying.
- Populations are growing quickly.
- You see the same pest year after year.
Related pests
Assassin Bugs
Predatory true bugs that use a piercing beak to feed on other insects. Most are beneficial outdoors, but some can bite people if handled or trapped against the skin.
Read more →Grasshoppers
Plant-feeding insects with powerful hind legs for jumping. They are mainly outdoor pests and can damage grasses, crops, gardens, and ornamental vegetation when populations are high.
Read more →June Beetles
Robust scarab beetles that often fly to lights in late spring or summer. Adults may feed on foliage, while larvae ('white grubs') live in soil and can damage turf or plant roots.
Read more →Spotted Lanternfly
An invasive planthopper that feeds on sap from many plants, especially tree-of-heaven, grapes, and some trees. Heavy populations excrete honeydew, which promotes sooty mold and can stress plants.
Read more →This page is general information, not a diagnosis. Pests vary by region and situation, and an on-site inspection is the reliable way to know what you have.