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Attachment A <br /> ,AVEN HILLS <br /> Emerald Ash Borer Management Plan <br /> Background <br /> Emerald ash borer (EAB), Agrilus planipennis Fairmaire, is an exotic beetle that was discovered <br /> in southeastern Michigan near Detroit in the summer of 2002. The adult beetles nibble on ash <br /> foliage but cause little damage. The larvae (the immature stage) feed on the inner bark of ash <br /> trees, disrupting the tree's ability to transport water and nutrients. Emerald ash borer probably <br /> arrived in the United States on solid wood packing material carried in cargo ships or airplanes <br /> originating in its native Asia. Without any natural predators or controls in North America the <br /> insect has spread to 13 states and two Canadian provinces. <br /> EAB adults can fly at least a half mile from the tree when they emerge. However, new <br /> infestations are most often created when people transport infested nursery ash trees, logs or <br /> firewood into uninfested areas. Transportation of firewood has been regulated to reduce the <br /> spread of EAB. Ramsey County is a quarantine area, which prohibits the transportation of ash <br /> wood outside the County. The Minnesota Department of Agriculture is responsible for <br /> quarantine enforcement and penalties. <br /> Signs and Symptoms <br /> Signs and symptoms of EAB include: <br /> • Bark splitting <br /> o Vertical fissures on bark <br /> o Galleries exposed under bark split <br /> • Serpentine galleries and"D" shaped exit holes <br /> • The presence of EAB or larvae. <br /> o Adult—Bright, metallic green/ 1/z inch long, flattened back <br /> o Larva—Creamy white, legless <br /> • Canopy dieback <br /> o Begins in top one-third of canopy <br /> o Progresses until tree is bare <br /> • Increased woodpecker activity. <br /> • Sprouting of epicormic shoots from the base of the tree <br /> Current EAB situation <br /> St. Paul and Falcon Heights confirmed EAB discovery in May of 2009. The City of Shoreview <br /> confirmed EAB discovery in the vicinity of County Road I and Schutta Road in July of 2011. <br /> The Department of Agriculture has since identified 11 trees in this neighborhood with confirmed <br /> EAB and several that are suspected and being monitored. How these trees became infested is <br /> Emerald Ash Borer Management Plan- City of Arden Hills Page 1 <br /> Adopted by the City Council on July 30, 2012 <br />