Friday, February 21, 2014

The Most Popular U of I Plant Clinic Blog Posts

The University of Illinois Plant Clinic has been blogging since 2011 and provided 87 blog posts.  By posting blogs to the U of I Facebook page and Twitter, we are able to provide timely information about topics of interest.  It is always interesting to analyze our blog's stats and see what topics have been the most popular.  Here are the 10 most popular blog posts to date.  Click on each title to read each blog - Enjoy!


1.)  How We Identify Corn Leaf Diseases at the U of I Plant Clinic


2.)  Will the Oak Galls Kill my Tree?


3.)  A Few Tomato Diseases Seen at the U of I Plant Clinic


4.)  Spruce and Pine Damage - (Herbicide or Environmental Factors)


5.)  The Difference Between Bacterial and Fungal Plant Pathogens

6.)  Downy Mildew on Impatiens in Illinois


7.)  So, You Want to Grow Grapes......


8.)  Eastern White Pine + Drought = Problems


9.)  App Attack:  Mobile Device Apps that can Aid IPM and Plant Identification


10.)  Everyone is Talking about Corn that has Turned White.....

Monday, February 10, 2014

Top 10 Problematic Trees of Illinois in 2013

Based on Plant Clinic sample submissions and questions, the following trees were considered to be the most problematic in 2013:

*The chart above does not include nematode sample data

(Links below provide further information on disease, insect, as well as abiotic threats discovered on each tree in 2013.)

#10. Crabapple
 Cedar apple rust:
 Apple scab:

#9.  Juniper
 Phytophthora Alert:

#8.   Arborvitae (Cedar)
Phytophthora Alert:

Browning of Evergreens:$department/deptdocs.nsf/all/agdex4144
Conifer Dieback:

#7.  Ash (excluding Emerald Ash Borer issues)
Ash Anthracnose:

#6.  Ornamental Pear
Pear blights:

#5.  Elm 
Verticillium wilt:

#4. Pine
Eastern White pine + Drought = Problems

#3.  Maple
Maple leaf blights:
Taphrina diseases:
Maple early fall color:

#2.  Spruce
U of I Plant Clinic Report on Spruce Problems:

and the number one problematic tree of 2013:

#1.  Oak
Taphrina diseases:
Oak wilt:
Bacterial leaf scorch (BLS):
Bur Oak Blight (BOB):
NEW U of I Plant Clinic Report on Oak Problems: