Ornamentals Hotline Additional Pictures for the What's Hot Section of Issue 23, August 31, 2007

Scoliid Wasps Searching and Feeding

Photos by Brian Kunkel, Extension Ornamental IPM Specialist, University of Delaware

Ornamentals Hotline Additional Disease Pictures for Issue 23, August 31, 2007

Foliar Nematodes on Ferns and Hostas

Photos by Bob Mulrooney, Extension Plant Pathologist, University of Delaware

Ornamental Hotline Pictures for the What's Hot Section of Issue 23, August 31, 2007

Aschocyta Blight on Lily-of-the-Valley

Photo by Bob Mulrooney, University of Delaware, Extension Plant Pathologist

Anthracnose on Walnut
Photo From an Online Guide to Plant Disease Control, Oregon State University Extension

Scoliid wasps are usually considered beneficial insects because they help control green June beetle and other grubs.

Photo from the University of Minnesota

Ornamental Hotline Disease Pictures for Issue 23, August 31, 2007

Botrytis Stem Canker

Botrytis on Geranium (Pelargonium)

Above 2 Photos from New England Greenhouse Update

Foliar Nematodes Magnified
Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Foliar Nematode Damage to Mums

Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Foliar Nematode on Anemone

Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Foliar Nematode on Butterfly Bush
Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Ornamentals Hotline Insect Pictures for Issue 23, August 31, 2007

Japanese Beetle Grubs

Photo by John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org

Asiatic Garden Beetle Grubs
Photo Credit John Obermeyer, Purdue Cooperative Extension Service

Phyllophaga species include May beetles, June beetles, and scarab beetles. These grubs have a multi-year life cycle.
Photo from Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org

Third instar oriental beetle with Tiphia vernalis (parasite) egg on ventral side
Photo by Mike Reding & Betsy Anderson, USDA ARS, Bugwood.org

Green June Beetle Grub
Photo from Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org

Northern Masked Chafer Grub
Photo by Mike Reding & Betsy Anderson, USDA ARS, Bugwood.org

Ornmentals Hotline Weed Pictures for Issue 23, August 31, 2007

Japanese Stiltgrass Close Up

Japanese Stiltgrass Competing with Planted Ferns

Stand of Japanese Stiltgrass in Wooded Clearing

Japanese Stiltgrass Mowed Area Showing Regrowth

Japanese Stiltgrass Mowing Effects
All Pictures by Susan Barton, University of Delaware, Extension Ornamentals Specialist

Ornamentals Hotline Disease Pictures for Issue 22, August 24, 2007

Mushrooms growing on Mulch

Photo from University of Cincinatti, Clermont College, Biology

Slime mold on mulch

Photo from University of Tennesee Plant Pathology

Slime mold on mulch

Photo by Peggy Sellers, Purdue University

Birds nest fungus

Photo from Department of Plant Pathology, Washington State University

Stinkhorn mushroom Clathrus spp

Photo by Paul A. Mistretta, USDA Forest Service, Bugwood.org

Dog stinkhorn fungus Mutinus caninus

Photo by Chris Evans, River to River CWMA, Bugwood.org

Stinkhorn mushroom Linderia columnata

Photo by David J. Moorhead, University of Georgia, Bugwood.org

Septoria Leaf Spot on Cornus florida

Photo from Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org

Septoria Leaf Spot on Cornus

Photo from Online Guide to Plant Disease Control, Oregon State University

http://plant-disease.ippc.orst.edu/disease.cfm?RecordID=1279

Ornamental Hotline Insect Pictures for Issue 22, August 24, 2007

Baldcypress (Taxodium) Rust Mite Damage - Whole Tree View

Baldcypress Rust Mite Damage - Branch View

Baldcypress Rust Mite Damage - Needle View

Baldcypress Rust Mite Magnified

All photos by Dr. Casey Sclar, Plant Health Care Division Leader, Longwood Gardens

Ornamental Hotline Additional Weed Pictures for Issue 22, August 24, 2007

Wild Radish

Hairy Bittercress

Corn Speedwell

Persian Speedwell

Purslane Speedwell

Ivyleaf Speedwell

Field Violet or Field Pansy

Yellow Rocket

Annual Ryegrass

Mousear chickweed


All Photos Courtesy of Shawn Askew, Turfgrass Weed Science, Virginia Polytechnic Institute & State University. www.ppws.vt.edu/~saskew/turfweeds/ or www.turfweeds.net

Ornamentals Hotline Weed Pictures for Issue 22, August 24, 2007

Horseweed or Marestail Seedling

Downy Brome Seedling

Shepard's Purse Seedling

Wild Mustard Seedling

Annual Bluegrass Seedling

Purple Deadnettle Seedling

Henbit Seedling

Common Chickweed Seedling

All Photos From Online Pacific Northwest Insect and Weed Management Handbooks

Photos Credit: Oregon State University Jed Colquhoun and Larry Burrell photo Collection

Ornamentals Hotline Disease Pictures for Issue 21, August 17, 2007

Drought and heat effects on perennials - Hosta

Photo by Gordon Johnson, University of Delaware

Brown patch produces characteristic symptoms on tall fescue leaves: irregularly shaped lesions that are tan in color with a dark brown border.

From a distance, brown patch appears in brown, tan, or yellow patches ranging from 6 inches to several feet in diameter. The infected leaves typically remain upright, rather than collapsing to the ground.

Brown Patch Pictures From North Carolina State University Plant Pathology Extension
Turfgrass Disease Information Note 15 (TURF-015)

Powdery Mildew on Lilac

Photo from Iowa State University Plant Disease Clinic

Ornamentals Hotline Pictures for the What's Hot Section of Issue 21, August 17, 2007

Mass of Webworms

Extensive Webbing by Webworms

Webworm Damage

Dogwood Sawflies

Dogwood Sawfly Damage

White peach or prunicola scale

All Photos by Brian Kunkel, Extension Ornamental IPM Specialist, University of Delaware

Ornamentals Hotline Insect Pictures for Issue 21, August 17, 2007

Tulip Tree Scale

Sooty Mold on Trunk as a Result of Tulip Tree Scale Honeydew Production

Honeydew Being Produced by Tulip Tree Scale

Tulip Tree Scale Cluster

Branch Dieback Due to Tulip Tree Scale

Ants With Tulip Tree Scales

Magnolia Scale, Not to be Confused with Tulip Tree Scale

All Tulip Tree Scale Photos by Brian Kunkel, Extension Ornamental IPM Specialist, University of Delaware. Magnolia scale picture by John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org

Ornamentals Hotline Weed Pictures for Issue 21, August 17, 2007

Annual Bluegrass Seedlings

Photo from Weed Management in Nursery Crops, Oregon State University

http://oregonstate.edu/dept/nursery-weeds/weedspeciespage/annual_bluegrass/annual_bluegrass_page.html

Annual Bluegrass Seedlings -Note Boat Shaped Tips

Photo from Weed Management in Nursery Crops, Oregon State University

http://oregonstate.edu/dept/nursery-weeds/weedspeciespage/annual_bluegrass/annual_bluegrass_page.html

Annual Bluegrass in Tall Fescue Turf

Photos from Turffiles at North Carolina State University

www.turffiles.ncsu.edu

Annual Bluegrass in Flower (Spring)

Photo from Turfweeds.net at Virginia Tech

Ornamentals Hotline Pictures for the What's Hot! Section, Issue 20, August 10, 2007

Drough Effects on Landscape Plants in MD and DE.

Picture by Gordon Johnson, University of Delaware

Drought Effects on Shrubs and Trees in MD and DE

Photo by Gordon Johnson, University of Delaware

Azalea Lacebug Damage

Photo From Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org

Dog Day Cicada

Photo by Jim Occi, BugPics, Bugwood.org

Ornamentals Hotline Insect Pictures for Issue 20, August 10, 2007

Leopard Moth Larvae and Damage

Photo by Petr Kapitola, State Phytosanitary Administration, Bugwood.org

Leopard Moth Larvae and Damage

Photo by Jean-Paul Grandjean, Office National des Forêts, Bugwood.org

Leopard Moth Adult

Photo by James Solomon, USDA Forest Service, Bugwood.org

Leopard Moth

Photo by Louis-Michel Nageleisen, Département de la Santé des Forêts, Bugwood.org

Ornamentals Hotline Disease Pictures for Issue 20, August 10, 2007

Diplodia (Sphaeropsis) Tip Blight

Photo from the Minnesota Department of Natural Resources Archive, Minnesota Department of Natural Resources, Bugwood.org

Diplodia (Sphaeropsis) Tip Blight

Photo from the Minnesota Department of Natural Resources Archive, Minnesota Department of Natural Resources, Bugwood.org

Diplodia (Sphaeropsis) Tip Blight
Photo from the USDA Forest Service Archive, USDA Forest Service, Bugwood.org

Ornamentals Hotline Weed Photos for Issue 20, August 10, 2007

Marestail (horseweed) in Flower

Marestail and Ragweed in Former Farmland Site

Former Farmland Field Growing Up in Marestail Prior to Being Developed

Canada Thistle, Common in Former Farmland Sites

Canada Thistle Showing Fluffy Seeds

Canada Thistle Patch

Bull Thistle, Not to be Confused with Canada Thistle

All Photos by Gordon Johnson

Extension Agriculture and Commercial Horticulture Agent, University of Delaware, Kent County

Ornamentals Hotline Additional Disease Pictures for Issue 19, August 3, 2007

Septoria on Cornus (Dogwood)

Cercospora on Hydrangea

Photos by Bob Mulrooney, Extension Plant Pathologist, University of Delaware

Ornamentals Hotline Pictures for the What's Hot Section of Issue 19, August 3, 2007

Spider mite damage.

John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org

Spider mites feeding on leaf.

John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org

Spider Mite Magnified.

Photo by David Cappaert, Michigan State University, Bugwood.org

Green June Beetle

Photo from University of Georgia Archives, University of Georgia, Bugwood.org

Cicada Killer and its Prey
Photo by Howard Ensign Evans, , Bugwood.org

Female Cicada Killer in Flight

Ornamentals Hotline Weed Pictures for Issue 19, August 3, 2007

White clover, an indicator of low mowing height and low fertility soil.

Spurge, an indicator of compacted soil.

Prostrate knotweed, an indicator of compaction.

Red Sorrel, an indicator of low pH, low fertility soil or dry soil.

Plantain, an indicator of low fertility soil.

Nutsedge and Oxalis (woodsorrel), indicators of wet soil.

Nimblewill, an indicator of excess shade.

Goosegrass, an indicator of compacted soil.

Crabgrass, an indicator of low mower height, wet soils, or high fertility.

Carpetweed, an indicator of dry soil.

Black Medic, an indicator of dry soil.

Bermudagrass (wiregrass), an indicator of low mowing height, compaction, or high fertility.

All Weed Pictures by Gordon Johnson, Extension Agent, Agriculture and Commercial Horticulture, University of Delaware, Kent County

Ornamentals Hotline Disease Pictures for Issue 19, August 3, 2007

Microscopic close-up of Cercospora leaf spot on Endless Summer big leaf hyrdrangea (Hydrangea macrophylla 'Bailmer'); note, purple halo around spot.

Photo by Missouri Botanical Garden, Kemper Center for Home Gardening, IPM

Cercospora leaf spot on lower leaf surface of Endless Summer big leaf hyrdrangea (Hydrangea macrophylla 'Bailmer').

Photo from the Missouri Botanical Garden, Kemper Center for Home Gardening, IPM

Cercospora leaf spot on upper leaf surface of Endless Summer big leaf hyrdrangea (Hydrangea macrophylla 'Bailmer').

Photo from Missouri Botanical Gardens, Kemper Center for Home Gardening, IPM

Cercospora on Rose

Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Black Spot on Rose

Photo from the Iowa State University Plant Disease Clinic

Black Spot on Rose

Photo from the Iowa State University Plant Disease Clinic

Mutinus caninus, a type of stinkhorn, growing on mulch

Photo by Paula Flynn, Extension Plant Pathologist, Iowa State University

Ornamentals Hotline Insect Pictures for Issue 19, August 3, 2007

Blister Beetle Damage to Hosta

Margined Blister Beetle

Blister Beetle on Hosta

All Blister Beetle Pictures by Gordon Johnson, Extension Agent, Agriculture and Commercial Horticulture, University of Delaware, Kent County