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12/16/2009 Env Bd Packet
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12/16/2009 Env Bd Packet
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Environmental Board
Env Bd Document Type
Env Bd Packet
Meeting Date
12/16/2009
Env Bd Meeting Type
Regular
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ENVIRONMENTAL BOARD MEETING NOVEMBER 18, 2009 <br />inspector may proceed to abate the nuisance as herein provided. The cost of the <br />abatement shall be assessed against the owner of the property involved or against <br />the property itself. <br />(2) All oak trees within the city diagnosed as having oak wilt should be isolated <br />from neighboring healthy trees of the same species by chemical or mechanical <br />disruption of common root grafts to prevent the root graft transmission of the oak <br />wilt fungus. <br />(3) To control the overland spread of oak wilt, the pruning of oaks shall be <br />avoided during the most susceptible months of May and June. If wounding is <br />unavoidable during this period, as in the aftermath of a storm or when the tree <br />interferes with utility lines, an asphalt -based tree wound dressing shall be applied <br />immediately. <br />(4) Trees of the red oak group diagnosed as having oak wilt may be girdled as <br />soon as they are detected in order to speed drying and reduce spore production. <br />Girdling shall be done only in areas where a weakened tree will not constitute a <br />hazard to life and/or property should it fall. Trees included in this group are <br />commonly known as red oak, pin oak, scarlet oak, and black oak. <br />(5) To prevent oak wilt fungus spore production and control overland spread of <br />this disease, any diseased material of the red oak group desired for use as fuel <br />wood or to be salvaged for other purposes must be debarked or else completely <br />covered by heavy plastic (4 mil or greater) until July 1. <br />(6) Any branch or other material of the red oak group not to be salvaged shall <br />be disposed of by burning, chipping, or removal to an authorized dump site. The <br />city forester shall advise accordingly. <br />(7) Stumps of trees of the red oak group removed due to oak wilt shall be <br />completely covered, removed, or debarked to the ground -line to eliminate all <br />possibilities of spore formation and overland disease spread. <br />(8) Trees of the white oak group (i.e. white oak, bur oak) diagnosed as having <br />oak wilt should be isolated by root graft disruption, as previously stated. Diseased <br />material originating from the trees will not support spore formation and salvaged <br />material therefore will not require special treatment to control overland disease <br />spread. Standing trees of this group showing symptoms of minor oak wilt <br />infection may have the infection successfully removed by selective pruning. The <br />city forester will advise accordingly. <br />(Prior Code, § 902.05) <br />§ 902.06 TRANSPORTING ELM, OAK AND ASH WOOD PROHIBITED. <br />DRAFT MINUTES 4 <br />• <br />• <br />
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