Disease Hotline Issue 18

Posted on July 27, 2007 by campus

Nectria Canker on Honeylocust

Photo: Robert Blanchette, University of Minnesota Extension

Diplodia Tip Blight on Pine
Photo by Minnesota Department of Natural Resources Archives

forestryimages.org

Diplodia Tip Blight on Pine
Photo by Susan K. Hagle, forestryimages.org

Disease extra Hotline Issue 17

Posted on July 21, 2007 by campus

Peony Blotch on Tree Peony Leaves

Marginal Leaf Scorch Due to Water Stress on Katsura Tree

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

Weed Hotline Issue 17

Posted on July 20, 2007 by campus

Yellow Nutsedge Plants

Yellow Nutsedge in Turf Near Drain Outlet

Yellow Nutsedge Growing Through Mulch

Yellow Nutsedge Rhizomes

Glyphosate Spot Sprayed on Yellow Nutsedge: Multiple Applications Will Be Needed

Newly Forming Tubers at the End of Rhizomes on Yellow Nutsedge (magnified 8x)

Mature Tuber From Yellow Nutsedge (magnified 8x)

Triangular Stem of Yellow Nutsedge (Magnified 8x)

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

Insect Hotline Issue 17

Posted on July 20, 2007 by campus

Azalea Lacebug and tarspots

Clemson University – USDA Cooperative Extension Slide Series, www.insectimages.org

Lacebug Feeding on Leaf

Photo by B.A. Kunkel, Extension IPM Specialist, Univ. Delaware

Lacebug Closeup

Photo by B.A. Kunkel, Extension IPM Specialist, Univ. Delaware

Disease Hotline Issue 17

Posted on July 20, 2007 by campus

Photo from Iowa State University Forestry Extension Website.

Bacterial Leaf Scorch on Pin Oak

Photo by Jim Peter, The Plant & Pest Diagnostic Laboratory at Purdue University

Bacterial Scorch on Pin Oak
Photo by Jim Peter, The Plant & Pest Diagnostic Laboratory at Purdue University

Bacterial Leaf Scorch on Oak

Photographer Edward L. Barnard, Florida Department of Agriculture and Consumer Services

Peony blotch on peony (Paeonia)

Image from Missouri Botanical Garden, Kemper Center for Home Horticulture Web Site