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Dave Hanson's Bugs and Tree Cruds 2010-10-25

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A collection of images identifying common insects, fungi and issues in our urban forest. …

A collection of images identifying common insects, fungi and issues in our urban forest.
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  • Curtis young – Joe Boggs and others from The Ohio State University identified this critter on hybrid elms in TRE
  • Annual cicada – about the size of your thumb – much to large for EAB – but often green and often collected and put forth as a possible EAB find.
  • Annual cicada – about the size of your thumb – much to large for EAB – but often green and often collected and put forth as a possible EAB find.

Transcript

  • 1. 1-17-2010 Snow fleas on a warm January Day
  • 2. Snow fleas on a warm January Day 1-17-2010
  • 3. Brown ambrosia aphid on Jerusalem artichoke Notice the cornicles an Id characteristic for aphids Uroleucon ambrosiae
  • 4. Ambrosia aphid on Jerusalem artichoke
  • 5. Oleander aphids on Swamp milkweed Aphis nerii
  • 6. Aphids and Associated damage On Green Ash
  • 7. Woolly Aphids on speckled alder Paraprociphilus tessellatus
  • 8. Woolly Apple Aphids (Erisoma lanigerum) With winged adults on cotoneaster
  • 9. Balsam twig aphid Or Balsam wooly adelgid balsam fir
  • 10. Spittle bug on goldenrod
  • 11. Fir broom rust on Abies balsamea
  • 12. Hackberry Witches Broom ... Eriophyid mite and Powdery Mildew
  • 13. Phomopsis galls on Bitternut Hickory 2010-3-22
  • 14. Salt spray accumulation Causes witches brooms or needle death 2-23-2008 2-23-2008
  • 15. Witches broom caused by Salt spray accumulation 2-7-2008
  • 16. Frost damage on Bur Oak
  • 17. Hackberry Tatters ... Suspected - herbicide damage to buds 5-26-2004
  • 18. Photo Taken: 7-29-09 Japanese Beetle – Defoliator ... Popillia japonica Newman
  • 19. Photo Taken: 8-24-09 Japanese Beetle – Defoliator ... Popillia japonica Newman
  • 20. Photo Taken: 8-24-09 Japanese Beetle – Defoliator ... Popillia japonica Newman
  • 21. Photo Taken: 7-29-09 Japanese Beetle – Defoliator ... Popillia japonica Newman
  • 22. European elm flea weevil A first report for Minnesota 8-05-09 Adult feeding activity Orchestes alni A side view of the Elm flea weevil.  Photo credit: Jim Zablotny, USDA/APHIS/PPQ. Blotch mines caused by larvae
  • 23. Emerald ash borer Agrilus planipennis Fairmaire
  • 24. Purple Trap for Emerald ash borer (EAB) Photo taken at the Gateway Arch in St. Louis, MO July of 2008
  • 25. Photo Taken: 9-14-09 Annual Cicada ... Tibicen canicularis
  • 26. Photo Taken: 9-14-09 Locust borer ... Megacyllene robiniae
  • 27. Photo Taken: 9-14-09 Calligrapha species on ninebark
  • 28. Tar spot on Silver maple
  • 29. Eyespot gall on Acer rubrum
  • 30. Eriophyid mite galls Silver maple 2008-6-19
  • 31. Eriophyid mites Spindle Gall on American Plum Photo: 6-17-09
  • 32. Erineum Gall on Viburnum Photo: 9-01-09 Eriophyid mites
  • 33. Ash flower gall (mites) On green ash
  • 34. Sawfly larvae on Mugo pine
  • 35. Sawfly and damage on Red pine
  • 36. Forest tent caterpillar newly emerged 2010-4-13
  • 37. Forest tent caterpillar
  • 38. Forest tent caterpillar 4-30-07 Same Twig 5-10-07
  • 39. Eastern tent caterpillar On choke-cherry
  • 40. Eastern tent caterpillar Eggmass On choke-cherry
  • 41. Loopers or inch-worms on little-leaf linden
  • 42. Spiny Elm Caterpillar on Hackberry
  • 43. New Old Eastern spruce gall (adelgid) White spruce
  • 44. Noxious Gall on Swamp white Oak (Cynipid wasp)
  • 45. Bullet gall on Bur oak
  • 46.  
  • 47. Wooly adelgid on Douglas fir
  • 48. Wooly adelgid on Douglas fir
  • 49. Scurfy Scale on Quaking Aspen
  • 50. Walking stick or stick bug Photo: 9-12-09
  • 51. Northern Paper Wasp Devouring a caterpillar Photo: 9-12-09
  • 52. Photo Taken: 9-14-09 Boxelder bug – adult and nymphs 09-01-2009
  • 53. Photo Taken: 9-14-09 Plant Hopper 2010-8-12 09-01-2009
  • 54. Photo Taken: 9-14-09 Green Darner (female) 2010-8-15 09-01-2009
  • 55. Photo Taken: 9-14-09 Verticillium wilt ... Staining of vascular tissue
  • 56. Photo Taken: 9-14-09 Verticillium wilt ... Staining of vascular tissue
  • 57. Herbicide damage ? No! ‘ Contorta’ white pine
  • 58. Iron chlorosis on Pin oak
  • 59. Anthracnose on Bur Oak
  • 60. Quince rust on Hawthorn
  • 61. Photo Taken: 9-14-09 11-07-2009 Cedar-Hawthorn Rust or Cedar-apple rust
  • 62. Cedar apple rust On Eastern Red Cedar
  • 63. Cedar-Hawthorn rust Upper leaf surface on Hawthorn
  • 64. Cedar-hawthorn rust Aecia – underside of leaf
  • 65. Red admiral on Little-leaf linden
  • 66. Frost crack and associated internal decay Red maple
  • 67. Black knot on Black cherry
  • 68. Sapsucker damage on: Eastern red cedar Butternut
  • 69. Sapsucker damage on: Paper Birch
  • 70. Rabbit damage crabapple
  • 71. Volcano mulching Or Architectural mulching
  • 72. Proper Staking ?? NO! Nails are not acceptable Wire through hose is not acceptable Connections Too Rigid
  • 73. Proper Staking Wide straps Stem is protected 3 taut connections
  • 74. Birds nest fungi in mulch
  • 75. Dog-vomit slime mold Fuligo septica
  • 76. Photo Taken: 9-14-09 Stinkhorn fungi Lizard’s claw Lysurus cruciatus A rare site in Anoka County,MN Photographer: Unknown
  • 77. Photo Taken: 9-14-09 Stinkhorn fungi Ravenal’s stinkhorn Phallus ravenelii 2010-10-17
  • 78. Photo Taken: 9-14-09 Wood decay fungi
  • 79. Photo Taken: 9-14-09 Wood decay fungi
  • 80. Photo Taken: 9-14-09 Wood decay fungi
  • 81. Photo Taken: 9-14-09 Wood decay fungi on poplar 2008-6-21
  • 82. Photo Taken: 9-14-09 Wood decay fungi on American elm 2006-9-25
  • 83. Photo Taken: 9-14-09 Wood decay fungi
  • 84. Photo Taken: 9-14-09 Wood decay fungi
  • 85. Photo Taken: 9-14-09 Wood decay fungi on Populus tremuloides 2006-10-2
  • 86. Photo Taken: 9-14-09 Wood decay fungi on Box elder
  • 87. Photo Taken: 9-14-09 Rhizomorphs of Armillaria root rot
  • 88. Sensitive fern Onoclea sensibilis
  • 89. High-bush cranberry Viburnum trilobum
  • 90. Photo Taken: 9-14-09 Beaked Hazel ... Corylus cornuta
  • 91. Photo Taken: 9-14-09 Smilax sp ... dioecious
  • 92. Photo Taken: 9-14-09 Ginkgo Biloba dioecious
  • 93. Bristly greenbrier in winter Smilax tamnoides American hops in winter Humulus lupulus
  • 94. Moonseed in winter Menispermum canadense Bittersweet in autumn Celastrus scandens
  • 95. Poison Ivy
  • 96. Flowers of Sugar maple Male and Female flowers are present, often on the same branch
  • 97. 4-17-2009 Flowers of red maple Male -Staminate Female - Pistillate
  • 98. Flowers of boxelder
  • 99. Korean Mountain Ash S orbus alnifolia
  • 100. Autumn Blossom of Witchhazel Hamamelis virginiana
  • 101. Ribes spp. blossom near Cotton, MN. 2010-4-18
  • 102. Photo Taken: 9-14-09 Austrian Pine Pinus nigra Pollen release
  • 103. Photo Taken: 9-14-09 11-07-2009 Scots Pine Pinus sylvestris Buds, 2-needle pine, stomate lines
  • 104. Photo Taken: 9-14-09 Sour Cherry ... Prunus cerasus
  • 105. Photo Taken: 9-14-09 Eastern Cottonwood ...
  • 106. Photo Taken: 9-14-09 Hackberry, Celtis occidentalis
  • 107. Photo Taken: 9-14-09 Black Chokeberry ... Aronia melanocarpa
  • 108. Photo Taken: 9-14-09 Black Chokeberry ... Aronia melanocarpa
  • 109. Photo Taken: 9-14-09 Winterberry ... Ilex verticilatta
  • 110. Photo Taken: 9-14-09 Red Oak ... Quercus rubra