Black Scale (Larvae/Adult)

Scientific Name: Saissetia oleae

Order & Family: Order: Hemiptera, Family: Coccidae

Size: 3 mm to 5 mm in length

Black Scale (Larvae/Adult)

Natural Habitat

Commonly found on olive trees, citrus, and various ornamental shrubs in Mediterranean and tropical climates.

Diet & Feeding

Plant sap (phloem). These insects use piercing-sucking mouthparts to feed on the tender twigs and leaves of host plants.

Behavior Patterns

They are largely sedentary as adults, appearing as dark, hard bumps on stems. They excrete a sticky substance called honeydew while feeding, which can lead to the growth of black sooty mold.

Risks & Benefits

Risk: Heavy infestations can cause leaf drop, twig dieback, and reduced fruit production. Benefit: Provide a food source for natural predators like chalcid wasps and ladybugs.

Identified on: 3/18/2026