Disease Hotline Issue 9

Close-up of Iris rust to the left.  Photo provided by:  Bob Mulrooney, University of Delaware

 

 

 

 

Monolinia blight on Kwanzan cherry.  Photo provided by:  Bob Mulrooney, University of Delaware

 

 

 

Photos for azalea leaf gall, cedar apple rust, cedar quince rust & monolinia blight were posted previously.  Please use the search function to locate these images.

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

Disease Hotline Issue 12


Powdery mildew on crabapple and apple. Photo provided by: University of Georgia Plant Pathology Archive, University of Georgia, Bugwood.org

Oak leaf blister. Photo found at: http://www.ppdl.purdue.edu/PPDL/images/TaphrinaOak1.jpg

Cedar quince rust on a juniper twig. Photo found at: http://www.uky.edu/Ag/kpn/kpn_09/pn_090414.html