As temperatures rise and plants push out fresh new growth, two of the most common (and frustrating) garden pests make their annual appearance: aphids and whiteflies. Spring through early fall is prime season for these sap-sucking insects, and if left untreated, they can quickly damage ornamentals, vegetables, trees, and shrubs.
As pest professionals, we see the same pattern every year—early detection and proper treatment make all the difference.
Aphids are small, soft-bodied insects that cluster on new growth, stems, and the undersides of leaves. They come in a variety of colors including green, black, yellow, and brown.
-
Curled, distorted, or yellowing leaves
-
Sticky residue on leaves or surfaces below plants (called honeydew)
-
Ant activity around plants (ants “farm” aphids for honeydew)
-
Stunted plant growth
Aphids reproduce extremely fast, which means a small problem can turn into a major infestation in a short amount of time.
Whiteflies are tiny, winged insects that resemble small white moths. When disturbed, they often fly up in a noticeable cloud from the plant.
-
Yellowing or wilting leaves
-
Sticky honeydew buildup
-
Sooty mold growing on leaves
-
Weakened plants and reduced yields
Like aphids, whiteflies feed on plant sap and can transmit plant diseases, making them especially damaging to vegetables and ornamental plants.
-
Reduced flowering and fruiting
-
Increased susceptibility to disease
-
Unsightly plant damage
-
Plant decline or death in severe cases
Because they often hide on the undersides of leaves, infestations can go unnoticed until damage is already visible.
Effective control requires more than just spraying visible insects. A professional approach focuses on control, prevention, and plant health.
-
Targeted insecticide applications designed specifically for sap-feeding insects
-
Systemic treatments that protect plants from the inside out
-
Follow-up treatments to disrupt reproduction cycles
-
Integrated pest management (IPM) strategies to reduce future outbreaks
Professional products are more effective and longer-lasting than most over-the-counter options, while being applied safely to protect beneficial insects when possible.
-
Inspecting plants regularly, especially new growth
-
Washing plants with a strong stream of water to knock pests off early
-
Managing ants, which protect aphids and worsen infestations
-
Avoiding over-fertilizing, which encourages tender growth pests love
When to Call a Pest Professional
If you’re seeing repeated infestations, heavy honeydew buildup, or declining plant health, it’s time to bring in a professional. Early intervention saves plants, reduces chemical use over time, and keeps your landscape looking its best all season long.
