How to identify them

Aphids are tiny, soft, pear-shaped insects — green, black, yellow, or pink depending on species — that cluster in dense groups on the newest growth, buds, and the undersides of leaves. A pair of small tubes (cornicles) projecting from the rear is a distinguishing feature up close. They are often first noticed not by the insects themselves but by the sticky, shiny honeydew and black sooty mold they leave behind.

Behavior and biology in South Florida

Aphids feed by piercing plant tissue and sucking sap, concentrating on tender new growth. They reproduce astonishingly fast — females can give birth to live young without mating — so a few aphids become a heavy infestation in days during the warm season.

As they feed they excrete honeydew, a sugary waste that coats leaves and surfaces below, promoting black sooty mold and attracting ants. In fact, several ant species tend and protect aphids for their honeydew, which is why aphid problems and ant problems so often go hand in hand.

Signs of an infestation

• Dense clusters of tiny insects on new growth and leaf undersides
• Curled, distorted, or yellowing new leaves
• Sticky honeydew and black sooty mold on leaves and surfaces below
• Ants trailing up and down the plant, tending the aphids

Why they are a problem

Heavy aphid feeding distorts and stunts new growth, weakens ornamentals, and can transmit plant viruses, while the honeydew and sooty mold disfigure plants and nearby surfaces. Because aphids fuel ant activity, controlling them also helps cut off a food source driving ants toward the home.

How Bugsy’s treats aphids

Our technicians treat aphid infestations on ornamentals and address the honeydew-driven cycle that feeds ants and sooty mold. Because aphids concentrate on new growth and are tended by ants, we target the affected plants and factor in the ant activity, so treatment relieves both the plant damage and the ant pressure it supports.

Preventing aphids

• Inspect new growth and leaf undersides regularly for early clusters
• Avoid over-fertilizing with nitrogen, which pushes the tender growth aphids love
• Rinse light infestations off plants and encourage natural predators
• Manage the ants that tend and protect aphids
• Address infestations early before honeydew and sooty mold spread

At a glance

Plant pestSap feederProduces honeydewReproduces rapidly