Berberis emerald

Berberis emerald

Berberidaceae · broadleaf deciduous shrub · introduced

Last updated March 8, 2026

RustHigh

Aecial Stage (Alternate Host)

Powdery MildewModerate

Spring Emergence / Primary Infection

Lecanium scaleModerate

Spring Feeding & Egg Production

Diseases: Regionally Documented (3)

Symptom category — not a single disease Leaf Spot Multiple genera (Melampsoridium, Thekopsora, Naohidemyces... Rust Multiple obligate biotrophic fungi (Erysiphales: Erysipha... Powdery Mildew

Pests: Regionally Documented (1)

Parthenolecanium spp. Lecanium scale

Cultivars (1)

'Carousel'

Common name: Emerald Carousel Barberry; Mature height: 5 ft

Hardy to USDA Zone 4

Data Maturity

Structured Multiple sources. Expert review underway.