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

1-17-2010 Snow fleas on a warm January Day

Snow fleas on a warm January Day 1-17-2010

Brown ambrosia aphid on Jerusalem artichoke Notice the cornicles an Id characteristic for aphids Uroleucon ambrosiae

Ambrosia aphid on Jerusalem artichoke

Oleander aphids on Swamp milkweed Aphis nerii

Aphids and Associated damage On Green Ash

Woolly Aphids on speckled alder Paraprociphilus tessellatus

Woolly Apple Aphids (Erisoma lanigerum) With winged adults on cotoneaster

Balsam twig aphid Or Balsam wooly adelgid balsam fir

Spittle bug on goldenrod

Fir broom rust on Abies balsamea

Hackberry Witches Broom ... Eriophyid mite and Powdery Mildew

Phomopsis galls on Bitternut Hickory 2010-3-22

Salt spray accumulation Causes witches brooms or needle death 2-23-2008 2-23-2008

Witches broom caused by Salt spray accumulation 2-7-2008

Frost damage on Bur Oak

Hackberry Tatters ... Suspected - herbicide damage to buds 5-26-2004

Photo Taken: 7-29-09 Japanese Beetle – Defoliator ... Popillia japonica Newman

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

Emerald ash borer Agrilus planipennis Fairmaire

Purple Trap for Emerald ash borer (EAB) Photo taken at the Gateway Arch in St. Louis, MO July of 2008

Photo Taken: 9-14-09 Annual Cicada ... Tibicen canicularis

Photo Taken: 9-14-09 Locust borer ... Megacyllene robiniae

Photo Taken: 9-14-09 Calligrapha species on ninebark

Tar spot on Silver maple

Eyespot gall on Acer rubrum

Eriophyid mite galls Silver maple 2008-6-19

Eriophyid mites Spindle Gall on American Plum Photo: 6-17-09

Erineum Gall on Viburnum Photo: 9-01-09 Eriophyid mites

Ash flower gall (mites) On green ash

Sawfly larvae on Mugo pine

Sawfly and damage on Red pine

Forest tent caterpillar newly emerged 2010-4-13

Forest tent caterpillar

Forest tent caterpillar 4-30-07 Same Twig 5-10-07

Eastern tent caterpillar On choke-cherry

Eastern tent caterpillar Eggmass On choke-cherry

Loopers or inch-worms on little-leaf linden

Spiny Elm Caterpillar on Hackberry

New Old Eastern spruce gall (adelgid) White spruce

Noxious Gall on Swamp white Oak (Cynipid wasp)

Bullet gall on Bur oak

Wooly adelgid on Douglas fir

Scurfy Scale on Quaking Aspen

Walking stick or stick bug Photo: 9-12-09

Northern Paper Wasp Devouring a caterpillar Photo: 9-12-09

Photo Taken: 9-14-09 Boxelder bug – adult and nymphs 09-01-2009

Photo Taken: 9-14-09 Plant Hopper 2010-8-12 09-01-2009

Photo Taken: 9-14-09 Green Darner (female) 2010-8-15 09-01-2009

Photo Taken: 9-14-09 Verticillium wilt ... Staining of vascular tissue

Herbicide damage ? No! ‘ Contorta’ white pine

Iron chlorosis on Pin oak

Anthracnose on Bur Oak

Quince rust on Hawthorn

Photo Taken: 9-14-09 11-07-2009 Cedar-Hawthorn Rust or Cedar-apple rust

Cedar apple rust On Eastern Red Cedar

Cedar-Hawthorn rust Upper leaf surface on Hawthorn

Cedar-hawthorn rust Aecia – underside of leaf

Red admiral on Little-leaf linden

Frost crack and associated internal decay Red maple

Black knot on Black cherry

Sapsucker damage on: Eastern red cedar Butternut

Sapsucker damage on: Paper Birch

Rabbit damage crabapple

Volcano mulching Or Architectural mulching

Proper Staking ?? NO! Nails are not acceptable Wire through hose is not acceptable Connections Too Rigid

Proper Staking Wide straps Stem is protected 3 taut connections

Birds nest fungi in mulch

Dog-vomit slime mold Fuligo septica

Photo Taken: 9-14-09 Stinkhorn fungi Lizard’s claw Lysurus cruciatus A rare site in Anoka County,MN Photographer: Unknown

Photo Taken: 9-14-09 Stinkhorn fungi Ravenal’s stinkhorn Phallus ravenelii 2010-10-17

Photo Taken: 9-14-09 Wood decay fungi

Photo Taken: 9-14-09 Wood decay fungi on poplar 2008-6-21

Photo Taken: 9-14-09 Wood decay fungi on American elm 2006-9-25

Photo Taken: 9-14-09 Wood decay fungi

Photo Taken: 9-14-09 Wood decay fungi on Populus tremuloides 2006-10-2

Photo Taken: 9-14-09 Wood decay fungi on Box elder

Photo Taken: 9-14-09 Rhizomorphs of Armillaria root rot

Sensitive fern Onoclea sensibilis

High-bush cranberry Viburnum trilobum

Photo Taken: 9-14-09 Beaked Hazel ... Corylus cornuta

Photo Taken: 9-14-09 Smilax sp ... dioecious

Photo Taken: 9-14-09 Ginkgo Biloba dioecious

Bristly greenbrier in winter Smilax tamnoides American hops in winter Humulus lupulus

Moonseed in winter Menispermum canadense Bittersweet in autumn Celastrus scandens

Poison Ivy

Flowers of Sugar maple Male and Female flowers are present, often on the same branch

4-17-2009 Flowers of red maple Male -Staminate Female - Pistillate

Flowers of boxelder

Korean Mountain Ash S orbus alnifolia

Autumn Blossom of Witchhazel Hamamelis virginiana

Ribes spp. blossom near Cotton, MN. 2010-4-18

Photo Taken: 9-14-09 Austrian Pine Pinus nigra Pollen release

Photo Taken: 9-14-09 11-07-2009 Scots Pine Pinus sylvestris Buds, 2-needle pine, stomate lines

Photo Taken: 9-14-09 Sour Cherry ... Prunus cerasus

Photo Taken: 9-14-09 Eastern Cottonwood ...

Photo Taken: 9-14-09 Hackberry, Celtis occidentalis

Photo Taken: 9-14-09 Black Chokeberry ... Aronia melanocarpa

Photo Taken: 9-14-09 Winterberry ... Ilex verticilatta

Photo Taken: 9-14-09 Red Oak ... Quercus rubra

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

by Dave Hanson

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Dave Hanson’s Bugs and Tree Cruds 2010-10-25 Presentation Transcript