Aphids
If you are seeing curled leaves, sticky residue, or clusters of tiny insects on new growth, aphids are likely the cause.
What They Look Like
Aphids are small, soft-bodied insects that gather in clusters on stems and the undersides of leaves.
They are typically green but may also appear black, yellow, or pink depending on the species.
Their bodies are rounded and slightly pear-shaped, and they tend to cluster tightly on tender new growth.
Some aphids develop wings as populations grow, which allows them to spread quickly to nearby plants.
Damage Signs
Leaves curl, twist, or appear distorted
Sticky residue (honeydew) appears on leaves and stems
Plants may look weak or stunted
Black soot-like mold may develop on the sticky surfaces
Ants are often present, attracted to the sticky honeydue
Plants Most Affected
Tomatoes
Peppers
Beans
Lettuce and leafy greens
Brassicas such as cabbage, broccoli, and kale
Cucumbers and squash
Herbs, especially basil and parsley Apple trees
Fast Control (Start Here)
Spray plants with a strong stream of water to knock aphids off
Focus on the undersides of leaves where they cluster
Repeat every few days until population drops
Remove heavily infested growth early
Additional Control Options
Use insecticidal soap, covering all affected areas
Apply neem oil if populations persist
Reapply treatments as needed and always spray leaf undersides
Prevention
Check plants frequently, especially new growth
Encourage beneficial insects such as lady beetles and lacewings
Plant flowers that attract natural predators
Avoid excessive nitrogen fertilizer, which encourages soft growth
Remove heavily infested material before populations spread
Notes for Gardeners
Aphids are one of the most common garden pests and are almost unavoidable
Small populations are often manageable and do not require aggressive treatment
Ants often “farm” aphids, so controlling ants can significantly reduce aphid pressure
Early action is the difference between a minor nuisance and a full infestation
See Also
Tools and Supplies Recommended for a Home Garden
Garden Pest Identification Guide (The Dirty Dozen)
Beneficial Insects: Your Garden’s Natural Defense System
