What's Hot HL Issue 5

Azalea lace bug damage on azaleas. Photo provided by: Whitney Cranshaw, Colorado State University, bugwood.org

Oystershell scale adults and crawlers on roses. Photo provided by: Brian Kunkel, Ornamentals IPM Extension Specialist, University of Delware

Disease Hotline Issue 5

Hawthorn leaf spot. Photo found at: http://plant-disease.ippc.orst.edu/disease.cfm?RecordID=570

Cedar-quince rust. Photo found at: http://www.mobot.org/gardeninghelp/images/Pests/Pest94.jpg

Sycamore showing signs of defoliation from anthracnose. Photo provided by: William Jacobi, Colorado State University, Bugwood.org

Anthracnose on a maple leaf, notice the way the infection follows the veins. Photo provided by: Paul Bachi, University of Kentucky Research & Education Center, Bugwood.org

Sycamore leaf with signs of anthracnose infection. Photo provided by: William Jacobi, Colorado State University, Bugwood.org

Insect Hotline Issue 5

European pine sawfly. Notice larvae feed gregariously and consume older needles first creating a 'bottle-brush' effect. Photo provided by: Petr Kapitola, State Phytosanitary Administration, Bugwood.org

European pine sawfly eggs. Photo provided by: Andrea Battisti, Università di Padova, Bugwood.org

HL Issue 5 2010

HL Issue 4 2010

HL Issue 3 2010

HL Issue 2 2010

What's Hot HL Issue 4

Black vine weevil adults. Photo provided by: Kent Loeffler, Cornell University, Bugwood.org

Fire blight. Photo provided by: R. Grimm, Bugwood.org

Monilinia blight. Photo found at: http://www.apsnet.org/pd/covers/2005/dno05fr.htm

Disease Hotline Issue 4

Black spot on rose. Photo provided by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org

Cercospora leaf spot on rose. Photo found at: http://edis.ifas.ufl.edu/LyraEDISServlet?command=getImageDetail&image_soid=FIGURE%201&document_soid=PP267&document_version=42330

Kabatina blight on juniper. Photo found at: http://urbanext.illinois.edu/hortanswers/detailproblem.cfm?PathogenID=20

Insect Hotline Issue 4

Boxwood psyllid damage on boxwoods. Photo provided by: Daniel Herms, The Ohio State University, Bugwood.org

Boxwood leafminer adult. Photo provided by: Jim Baker, North Carolina State University, Bugwood.org

What's Hot HL Issue 3

Aphids on Spirea. Photo provided by: Whitney Cranshaw, Colorado State University, Bugwood.org

Spot anthracnose on petals. Photo provided by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org

Spot anthracnose on foliage. Photo provided by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org

Boxwood psyllid close-up. Photo provided by: Nancy Gregory, University of Delaware, Bugwood.org

Boxwood leafminer damage and larvae. Photo provided by: John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org

White pine weevil adult. Photo provided by: Juliana Cardona-Duque, University of Puerto Rico, Bugwood.org

Disease Hotline Issue 3

Swiss needle cast on leaves. Photo provided by: USDA Forest Service - North Central Research Station Archive, USDA Forest Service, Bugwood.org

Fruiting bodies of Swiss needle cast. Photo provided by: USDA Forest Service Archive, USDA Forest Service, Bugwood.org

Rhabdocline needle cast. Photo found at: http://www.plantpath.cornell.edu/trees/photo3/rhabph77b.JPEG

Insect Hotline Issue 3

Privet Rust mites. Photo found at: http://ipm.ncsu.edu/AG189/html/Privet_Rust_Mite.HTML

Southern red mite damage. Photo provided by: Frank A. Hale, University of Tennessee, Bugwood.org

Spruce spider mite damage. Photo provided by: Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org

What's Hot HL Issue 2

Pitch on branches sign of white pine weevil feeding and oviposition. Photo provided by: E. Bradford Walker, Vermont Department of Forests, Parks and Recreation, Bugwood.org

Mating pair of white pine weevil. Photo provided by: Daniel Herms, The Ohio State University, Bugwood.org

Water logged soils. Photo provided by: Brian Kunkel, Ornamental IPM Extension Specialist, University of Delaware.

Disease Hotline Issue 2

Crabapple scab. Photo found at: http://www.ipm.iastate.edu/ipm/hortnews/files/images/Apple%20scab.preview.jpg

Botryosphaeria canker. Photo provided by: University of Georgia Plant Pathology Archive, University of Georgia, Bugwood.org

Black spot on roses. Photo provided by: Yuan-Min Shen, Taichung District Agricultural Research and Extension Station, Bugwood.org

Insect Hotline Issue 2

Pine weeping from Sirex noctilio oviposition holes in trunk. Photo provided by: Dennis Haugen, Bugwood.org

Sirex noctilio emergence holes. Photo provided by: Dennis Haugen, Bugwood.org

Sirex noctilio larva. Photo provided by: Dennis Haugen, Bugwood.org

Male Sirex noctilio adult. Photo provided by: David R. Lance, USDA APHIS PPQ, Bugwood.org

Female Sirex noctilio adult. Photo provided by: Stanislaw Kinelski, Bugwood.org

Sirex noctilio females often die when ovipositing into the tree. Photo provided by: Paula Klasmer, Instituto Nacional de Tecnologia Agropecuaria, Bugwood.org

Winter injury on pine (dessication). Photo found at: http://ppp.missouri.edu/newsletters/meg/archives/v7n1/desicpflex.jpg and photo by: Chris Starbuck.