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1 (b) On all other property. On all other property, the city may mark for 2 removal all oak trees whether living or dead, infected or not and located 3 between an infected tree and the marked barrier location. These marked 4 trees must be felled and disposed of no later than May 1 of the year following 5 infection. The stump from such felled trees must not extend more than three 6 inches above the ground or, if taller, must be completely debarked. 7 8 All wood more than three (3) inches in diameter or ten (10) inches in 9 circumference from such felled trees must be disposed of by burying, 10 debarking, chipping, or sawing into wane-free lumber, or by splitting into 11 firewood, stacking the firewood, and immediately covering the woodpile with 12 unbroken four (4)-mill or thicker plastic sheeting that is sealed into the 13 ground until Oct. 1 of the calendar year following the calendar year in which 14 the tree was felled, or by burning before May 1 of the year following infection. 15 Wood chips from infected trees may be stockpiled or immediately used in the 16 landscape. 17 18 (C) Definition of control areas. The control area for oak wilt disease is defined as: All 19 lands within the boundaries of the city. 20 21 SUBD. 2. Emerald Ash Borer. 22 (A) Emerald ash borer is a shade tree pest and is defined as an insect that attacks 23 and kills ash trees. The adults are small, iridescent green beetles that live outside of 24 trees during the summer months. The larvae are grub- or wormlike and live 25 underneath the bark of ash trees. 26 27 (B) Control measures that may be taken to abate emerald ash borer are those 28 provided in the document, Minnesota Emerald Ash Borer Science Advisory Group 29 Recommendations on Preparing for Emerald Ash Borer in Minnesota. 30 [www.mda.state.mn.us/news/publications/pestsplants/pestmanagement/eab- 31 recommends.pdf] 32 33 (C) Definition of control areas. The control area for emerald ash borer is defined as: 34 All lands within the boundaries of the city. 35 36 SUBS. 3. Dutch Elm Disease. 37 (A) Dutch elm disease is a shade tree pest and is defined as a disease of elm trees 38 caused by the fungus Ophiostoma ulmi or Ophiostoma novo-ulmi, and includes any 39 living or dead tree, log, firewood, limb, branch, stump, or other portion of a tree 40 from any species of the genus Ulmus existing within the control area defined that has 41 bark attached and that exceeds three (3) inches in diameter or ten (10) inches in 42 circumference and could contain bark beetles or any spore or reproductive 43 structures of the fungus Ophiostoma ulmi or Ophiostoma novo-ulmi. 44 45 (B) Control measures that may be taken to abate Dutch elm disease are: 46 (1) Use of fungicide. Fungicides may be effective in preventing Dutch elm 47 disease when injected into living trees that do not already show symptoms of 48 Dutch elm disease. Fungicide injections on private lands are optional and, if 49 performed, are at the landowner's expense. 50 51 (2) Removal and disposal of trees. 52 Prompt removal of diseased trees or branches reduces breeding sites for elm 53 bark beetles and eliminates the source of Dutch elm disease fungus. Trees 54 that wilt before July 15 must be removed within 20 days of detection. Trees 55 that wilt after July 15 must be removed by April 1 of the following year. 10