HomeMy WebLinkAboutA platanoides Comments V1City of Meridian, Department of Parks & Recreation
33 East Broadway, Suite 206, Meridian, ID 83642
Telephone (208) 888-3579 Fax (208) 898-5501
Mayor Robert E.
Simison
Treg Bernt
Joe Borton
Luke
Brad Hoaglun
Jessica
Perreault
Liz Strader
Verticillium wilt, a disease caused by Verticillium dahliae is a soil borne fungal disease pathogen that is
ever-present in many soils that commonly attacks maples, especially Norway Maple as well as many
other woody plants in Meridian Soils. V. dahliae survives in the soil as clusters of thick-walled cells
known as “microsclerotia.” Microsclerotia are extremely resistant to drought and cold and can survive for
a decade or more as dormant propagules just waiting for exudates from a suitable host to wake them up.
Then they germinate much like a normal fungus spore and infect plants through the roots. Once in the
vascular system, the fungus grows up into the stem and branches, plugging the vessels as it goes and
eventually causing leaf wilt and branch death. Therefore, in an effort to comply with Integrated Pest
Management Best Practices, it is strongly recommended by the Meridian City Arborist that alternative
genera are used for new plantings and new developments in the City of Meridian.
Recommended Alternatives to Norway Maple (A. platanoides) that show resistance to V. dahliae
Betula nigra- River Birch
Carpinus betulus- European Hornbeam or/ Carpinus caroliniana American Hornbeam
Celtis occidentalis- Common Hackberry
Gingko biloba- Gingko
Gleditsia triacanthos var. inermis- Thornless Honeylocust
o EXCEPT ‘Suncole’ or Sunburst®
Liquidambar styraciflua- Sweetgum
Platanus X acerifolia- London Planetree
Quercus bicolor- Swamp White Oak
Quercus muehlenbergii- Chinkapin Oak
Tilia americana/cordata/tomentosa- Linden (American, Little Leaf, or Silver)
Zelkova serrata- Japanese Zelkova
Maple species that are preferred to A. platanoides
Acer miyabei- Miyabe Maple (Rugged Ridge®, State Street®)
o Acer truncatum Shangtung Maple (and/or Hybrids)
o Crimson Sunset®
o Norwegian Sunset®
o Pacific Sunset®
o Urban Sunset®
Matthew Perkins | City Arborist
City of Meridian | Parks and Recreation
33 E. Broadway Ave., Suite 206, Meridian, Idaho 83642
Phone: 208.888.3579 | Mobile: 208.371.1755 | Fax: 208.898.5501