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 Purdue Agriculture > Botany and Plant Pathology > Extension > Ornamental Pathology
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Dr. Janna Beckerman
Assistant Professor of Plant Pathology
Purdue University
Botany and Plant Pathology, Lilly Hall
915 West State Street
West Lafayette, IN 47907-2054
Office: LILY 1-321
Phone: (765) 494-4628
FAX: (765) 494-0363
E-mail: jbeckerm@purdue.edu |
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Program Description:
Phytophthora citricola causes both a root rot and trunk canker in over 45 species of plants, but has only been reported as a seedling root rot of black walnut. We have identified this pathogen as causing a stem canker of black walnut in Indiana, and are currently working on developing a better understanding of this pathogen so we may better manage this disease. |
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| Photo provided by Guillermo Padillo |
Black walnut scion inoculated with
P. citricola, 36 hr post-inoculation |
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Purdue University Green Industry Working Group
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| Downy Mildew | BP-068-W | Beckerman, Janna | Apr 2009 | PDF | | Salt Damage in Landscape Plants | ID-412-W | Beckerman, Janna; B. Rosie Lerner | Apr 2009 | PDF | | Powdery Mildew of Ornamentals | BP-005-W | Beckerman, Janna | Mar 2008 | PDF | | Leaf Diseases | BP-143-W | Beckerman, Janna | Mar 2008 | PDF | | Rose Black Spot | BP-139-W | Beckerman, Janna | Sep 2007 | PDF | | Cedar Apple and Related Rusts on Landscape Plants | BP-137-W | Beckerman, Janna | Aug 2007 | PDF | | Fire Blight on Fruit Trees in the Home Orchard | BP-030-W | Beckerman, Janna | Jan 2007 | PDF | | Spring Greenhouse Bedding Plants: Insect, Mite, and Disease Management | ID-218-W | Ruhl, Gail; Karen Rane; Cliff Sadof; Raymond Cloyd; Elizabeth Maynard | May 2002 | PDF | | Verticillium Wilt of Shade Trees | BP-006-W | Pecknold, Paul | Mar 2002 | PDF | | Anthracnose of Shade Trees | BP-009-W | Pecknold, Paul | Mar 2002 | PDF |
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