Himalayan Blackberry Armenian Blackberry
Rubus dicolor
Rosaceae · broadleaf deciduous shrub · naturalized
Last updated
Rubus dicolor is a broadleaf shrub in the Rosaceae family treated as a synonym or variant of Himalayan blackberry. It shares the aggressive growth habit and weedy characteristics of the R. armeniacus complex.
Thirty-two diseases and 4 pests are documented for this species complex. Detailed cultivation data and site preferences require further enrichment from authoritative taxonomic sources.
Quick Facts
Origin
Pacific Northwest native
Watch for this season
Primary Spore Release
Downy MildewHigh
Spring New Growth - Early Infection Window
Root Colonization Period
Armillaria Root RotModerate
Active Below-ground Growth
+ 3 more — see full disease and pest lists below
Diseases: Regionally Documented (30)
[VERIFY] Leaf And Cane Spot Phytophthora cactorum Fruit Rot Discula destructiva (dogwood), Kabatiella and Discula spp... Anthracnose Armillaria spp. — primarily A Armillaria Root Rot [VERIFY] Blackberry Collapse Blackberry Rust Cane and Leaf Rust Kalmusia coniothyrium Cane Blight Agrobacterium tumefaciens Crown and Cane Gall Multiple obligate oomycetes (Peronosporaceae); species ar... Downy Mildew Monilinia rubi Dry Cell (Dry Berry) Syndrome Phytophthora spp. (P Phytophthora Root Rot Multiple obligate biotrophic fungi (Erysiphales: Erysipha... Powdery Mildew Thrips tabaci Purple Blotch Septoria spp. Septoria Leaf Spot Xenodidymella applanata Spur Blight Anthophora dendrobii or Botryotinia fuckeliana Stamen Blight Verticillium dahliae Verticillium Wilt Blueberry mosaic virus and related viruses Virus Diseases Seimatosporium lichenicola Ascospora Dieback Raspberry bushy dwarf virus (RBDV) + raspberry leaf mottl... Crumbly Fruit Described as Dry Berry Fruit Rot and Cane Botrytis Pseudomonas Blight Tomato ringspot Ringspot Symptom category — not a single disease Root Rot Raspberry bushy dwarf virus and related viruses Virus Various plant-parasitic nematode genera Nematodes Xiphinema americanum and related species Nematode, Dagger Pratylenchus penetrans (primary) and P Nematode, Root-lesion
Pests: Regionally Documented (4)
Data Maturity Baseline Extension data. Expert review underway.