Disease Hotline Issue17


Brown patch in turf.

Tannish lesions on leaf blades are a symptom of brown patch.

Mycelium growing between leaves of grass. All photos were found at: http://www.cals.ncsu.edu/plantpath/extension/fact_sheets/Turfgrass_-_Managing_Brown_Patch_in_Tall_Fescue_Landscapes.htm as part of a fact sheet on brown patch in tall fescue.

Disease Hotline Issue 16


Drought stressed turf. Photo provided by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware

Pithium damage. Photo found at: http://www.extension.purdue.edu/extmedia/BP/BP-109-W.pdf (Richard Latin Prof. of Pathology)

Close-up of Pythium on turf. Photo found at: http://www.extension.purdue.edu/extmedia/BP/BP-109-W.pdf (Richard Latin Prof. of Pathology)

Brown patch infesting turf. Photo found at: http://www.cals.ncsu.edu/plantpath/extension/fact_sheets/Turfgrass_-_Managing_Brown_Patch_in_Tall_Fescue_Landscapes.htm

Maple showing signs of drought stress. Photo provided by: Robert L. Anderson, USDA Forest Service, Bugwood.org

Pine showing drought stress. Photo provided by: Robert L. Anderson, USDA Forest Service, Bugwood.org

Insect Hotline Issue 16


Spring cankerworm on a leaf. Photo provided by: James B. Hanson, USDA Forest Service, Bugwood.org

Spring cankerworm adult. Photo provided by: Jerald E. Dewey, USDA Forest Service, Bugwood.org

Fall cankerworm damage. Photo provided by: USDA Forest Service – Ogden Archive, USDA Forest Service, Bugwood.org

Fall cankerworm feeding on a leaf. Photo provided by: Tim Tigner, Virginia Department of Forestry, Bugwood.org

Fall cankerworm larva. Photo provided by: John H. Ghent, USDA Forest Service, Bugwood.org

Fall cankerworm female laying eggs. Photo provided by: John H. Ghent, USDA Forest Service, Bugwood.org

Elm spanworm damage. Photo provided by: USDA Forest Service – Region 8 Archive, USDA Forest Service, Bugwood.org

Elm spanworm camouflaged to look like a stick. Photo provided by: North Carolina Forest Service Archive, Bugwood.org

Elm spanworm on a leaf. Photo provided by: Arnold T. Drooz, USDA Forest Service, Bugwood.org

Disease Hotline Issue 15


Septoria leaf spot. Photo provided by: Photo provided by: Paul Bachi, University of Kentucky Research & Education Center, Bugwood.org

Septoria leaf spot. Photo provided by: Photo provided by: Paul Bachi, University of Kentucky Research & Education Center, Bugwood.org