Images for Pyracantha scab, powdery mildew and cercospora leafspot have already been posted to the site. Please use the search function to locate these images.
Category Archives: Disease
Disease Hotline Issue 13
Cytospora canker on an apple. Photo provided by: William Jacobi, Colorado State University, Bugwood.org
Cytospora canker on a willow twig. Photo provided by: William Jacobi, Colorado State University, Bugwood.org
Tobacco Rattle Virus on Hosta leaf. Photo provided by: Alan Windham, University of Tennessee, Bugwood.org
Tobacco Rattle Virus on Peony. Photo provided by: R.K. Jones, North Carolina State University, Bugwood.org
Tobacco Rattle Virus on Hosta. Photo provided by: Alan Windham, University of Tennessee, Bugwood.org
Tobacco rattle virus on epemedium. Photo provided by: Bob Mulrooney, University of Delaware, Plant Pathology Extension Specialist
What’s Hot HL Issue 13?
Horsechestnut leaf blotch. Photo from: Bob Mulrooney, University of Delaware.
Photos for brown patch, roseslug sawflies (search roseslug sawfly), bagworms and fall webworms (Insect Hotline Issue 20, 2008 has best images) have already been posted. Please use search function to locate images.
Disease Hotline Issue 12
Images for brown patch and peony blotch have been loaded to the website previously. Please use the search function to locate these photos.
Disease Hotline Issue 11
Powdery mildew on Coreopsis.
Powdery mildew on dogwood. Photos for powdery mildew are from Bob Mulrooney, University of Delaware.
Photos for anthracnose on ash and Dutch elm disease have previously been posted. Please use the search function to locate these images.