About California Red Scale
A circular reddish-brown armored scale insect that infests citrus bark, leaves, and fruit. Heavy infestations can kill branches and render fruit unmarketable.
Did You Know?
The parasitoid wasp Aphytis melinus is mass-reared by the billions to control this scale in California citrus orchards.
How to Identify California Red Scale
California Red Scale (Aonidiella aurantii) belongs to the order Hemiptera, family Diaspididae. Adults typically measure 1.5-2 mm diameter.
California Red Scale Habitat
California Red Scale is found in orchards habitats, particularly across Worldwide citrus-growing regions. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
California Red Scale Diet and Feeding
California Red Scale is a herbivore, feeding on plant material including leaves, stems, flowers, and other vegetation. Herbivorous insects play a significant role in ecosystems by influencing plant growth and serving as a food source for predators.
Where Is California Red Scale Found?
California Red Scale can be found in Worldwide citrus-growing regions, where it inhabits orchards environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where California Red Scale can be found
Is California Red Scale Dangerous?
California Red Scale is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
California Red Scale Role in Nature
California Red Scale is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About California Red Scale
What does California Red Scale look like?
The California Red Scale typically measures 1.5-2 mm diameter.
Where is California Red Scale found?
The California Red Scale is found in Worldwide citrus-growing regions and typically inhabits orchards environments.
What does California Red Scale eat?
The California Red Scale feeds on plant material including leaves, stems, and other vegetation.
Is California Red Scale dangerous to humans?
The California Red Scale is generally harmless to humans. It does not bite or sting and poses no significant health risk.
Is California Red Scale endangered?
The California Red Scale is currently classified as Not Evaluated by conservation assessments. Habitat loss and environmental changes are among the primary threats to its population.
What is an interesting fact about California Red Scale?
The parasitoid wasp Aphytis melinus is mass-reared by the billions to control this scale in California citrus orchards.
Cite This Page
APA:
InsectDiscover. (2026). California Red Scale (Aonidiella aurantii). Retrieved from https://insectdiscover.com/insect/california-red-scale
MLA:
"California Red Scale." InsectDiscover, https://insectdiscover.com/insect/california-red-scale.