Bosnian Maple
Acer opalus subsp. obtusatum
Sapindaceae · broadleaf deciduous tree · introduced
Last updated
Plant Profile
Size & Form
Height
30–40 ft
Site Requirements
Light
Full Sun to Part Shade
Hardiness
Zones 5a–8b
Ornamental Interest
Origin
Hungary, the Balkans, southern Italy, and Morocco
Watch for this season
Powdery MildewHigh
Active Conidial Spread
Root Colonization Period
Wood DecayHigh
Wound Infection Window
AphidHigh
Peak Population & Dispersal
+ 9 more — see full disease and pest lists below
Diseases: Regionally Documented (17)
Verticillium dahliae Verticillium Wilt Rhytisma punctatum Tar Spots Multiple obligate biotrophic fungi (Erysiphales: Erysipha... Powdery Mildew Phyllosticta spp. Phyllosticta Leaf Spot Neonectria ditissima Nectria Canker Multiple possible causes (see Disease Cycle section) Fasciation Bacterial Leaf Spot and Dieback Discula destructiva (dogwood), Kabatiella and Discula spp... Anthracnose Kretzschmaria deusta Brittle Decay Multiple Basidiomycete fungi cause wood decay in trees Wood Decay Armillaria spp. — primarily A Armillaria Root Rot Bigleaf Maple Decline (Bigleaf Maple Dieback) Phytophthora spp. (P Bleeding Canker Taphrina spp. Leaf Blister Symptom category — not a single disease Leaf Spot Phytophthora spp. (P Phytophthora Root Rot Cryptostroma corticale Sooty Bark Disease
Pests: Regionally Documented (13)
Vasates quadripedes Maple Bladdergall Mite Pulvinaria innumerabilis Cottony maple scale Aphidoidea Aphid Boisea rubrolineata Western boxelder bug Prionoxystus robiniae Carpenterworm Megachile spp. Leafcutting bee Proteoteras aesculana Maple tip moth (Maple twig borer) Lepidosaphes ulmi Oystershell scale Otiorhynchus spp. Root weevil Edwardsiana rosae Rose leafhopper Leucoma salicis Satin moth Frankliniella occidentalis Western flower thrips Proteoteras moffatiana Maple shoot moth
Data Maturity Structured Multiple sources. Expert review underway.