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:  http://hyg.ipm.illinois.edu/article.php?id=482
 Apple scab:  http://urbanext.illinois.edu/focus/applescab.cfm

#9.  Juniper
 Phytophthora Alert:  http://universityofillinoisplantclinic.blogspot.com/2013/06/phytophthora-root-and-crown-rot-alert.html

#8.   Arborvitae (Cedar)
Phytophthora Alert:  http://universityofillinoisplantclinic.blogspot.com/2013/06/phytophthora-root-and-crown-rot-alert.html

Browning of Evergreens:  http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex4144
Conifer Dieback:  http://www.ppdl.purdue.edu/ppdl/pubs/briefs/conifer-dieback.pdf

#7.  Ash (excluding Emerald Ash Borer issues)
EAB:   http://hyg.ipm.illinois.edu/article.php?id=464
Ash Anthracnose:   http://hyg.ipm.illinois.edu/article.php?id=470

#6.  Ornamental Pear
Pear blights:  http://hyg.ipm.illinois.edu/article.php?id=490

#5.  Elm 
Verticillium wilt:  http://hyg.ipm.illinois.edu/article.php?id=518

#4. Pine
Eastern White pine + Drought = Problems
http://universityofillinoisplantclinic.blogspot.com/2013/03/eastern-white-pinte-drought-problems.html

#3.  Maple
Maple leaf blights:  http://hyg.ipm.illinois.edu/article.php?id=473
Taphrina diseases:  http://hyg.ipm.illinois.edu/article.php?id=478
Maple early fall color:  http://www.dnr.state.mn.us/fid/august97/08259704.html

#2.  Spruce
U of I Plant Clinic Report on Spruce Problems:  http://web.extension.illinois.edu/plantclinic/downloads/Plant%20Clinic%20Report%20Spruce.pdf

and the number one problematic tree of 2013:

#1.  Oak
Taphrina diseases:  http://hyg.ipm.illinois.edu/article.php?id=478
Oak wilt:  http://hyg.ipm.illinois.edu/article.php?id=506
Bacterial leaf scorch (BLS):  http://hyg.ipm.illinois.edu/article.php?id=513
Bur Oak Blight (BOB):  http://hyg.ipm.illinois.edu/article.php?id=537
NEW U of I Plant Clinic Report on Oak Problems:  http://web.extension.illinois.edu/plantclinic/downloads/Plant%20Clinic%20Report%20Oak%20LO.pdf

19 comments:

  1. Thank you for sharing in this article
    I can learn a lot and could also be a reference
    I am happy to find your website and can join to comment
    I think is very valuable to be able to read your writing, and on this occasion will I use for my reference source
    Thank you so much for sharing, I hope you continue to write spirit next topic
    vimax extender harga hp terbaru

    ReplyDelete
  2. This comment has been removed by a blog administrator.

    ReplyDelete
  3. This comment has been removed by a blog administrator.

    ReplyDelete
  4. This comment has been removed by the author.

    ReplyDelete
  5. This comment has been removed by the author.

    ReplyDelete
  6. This comment has been removed by the author.

    ReplyDelete
  7. This comment has been removed by the author.

    ReplyDelete
  8. This comment has been removed by a blog administrator.

    ReplyDelete
  9. This comment has been removed by a blog administrator.

    ReplyDelete
  10. This comment has been removed by a blog administrator.

    ReplyDelete
  11. This comment has been removed by a blog administrator.

    ReplyDelete
  12. This comment has been removed by a blog administrator.

    ReplyDelete
  13. This comment has been removed by a blog administrator.

    ReplyDelete
  14. This comment has been removed by a blog administrator.

    ReplyDelete
  15. This comment has been removed by a blog administrator.

    ReplyDelete
  16. This comment has been removed by a blog administrator.

    ReplyDelete
  17. This comment has been removed by a blog administrator.

    ReplyDelete
  18. This comment has been removed by a blog administrator.

    ReplyDelete

Note: Only a member of this blog may post a comment.