Santa Rosa Island Manzanita

Arctostaphylos confertiflora

Ericaceae · broadleaf evergreen shrub · introduced

Last updated March 8, 2026

Quick Facts

Height

5 ft

Light

Full Sun

Origin

the Channel Islands, i

RustHigh

Aecial Stage (Alternate Host)

AphidModerate

Spring Colonization

Root weevilModerate

Adult Emergence & Foliar Feeding

Diseases: Regionally Documented (5)

Thielaviopsis basicola Black Root Rot Abiotic or fungal Leaf Gall Symptom category — not a single disease Leaf Spot Phytophthora Dieback Multiple genera (Melampsoridium, Thekopsora, Naohidemyces... Rust

Pests: Regionally Documented (3)

Aphidoidea Aphid Otiorhynchus spp. Root weevil Tamalia coweni Aphid (Manzanita leafgall aphid)

Data Maturity

Structured Multiple sources. Expert review underway.