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May 28 2013

Impatiens Downy Mildew Fact Sheet

Subject: impatiens downy mildew fact sheet

Dear VCE  Agents,

We wanted to alert you to a new electronic VCE fact sheet on impatiens downy mildew at the following url: http://pubs.ext.vt.edu/PPWS/PPWS-19/PPWS-19.html. The fact sheet includes information on the disease, as well as a list of helpful web resources on this disease. We hope you will find this to be a useful resource.

Mary Ann and Elizabeth

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Plant Disease Clinic
106 Price Hall
Dept. of Plant Pathology, Physiology and Weed Science
Virginia Tech
Blacksburg, VA 24061-0331

Written by dmccarthy · Categorized: Community News, Pest and Disease Updates

May 03 2013

Resources to help handle emerging ornamental diseases

Dear Colleagues:

 

As the 2013 season starts, there will be a lot of questions from farmers, garden centers and landscapers as well as Master Gardeners and the public about rose rosette disease (RRD), boxwood blight, impatiens downy mildew and other emerging ornamental diseases.  On behalf of the ornamental pathology team, I am sending the following web resource links to help you handle the questions that you may be asked. Please share them with your Master Gardeners and clientele.

 

Rose Rosette Disease e-book http://pubs.ext.vt.edu/450/450-620/450-620.html

Box blight fact sheet http://pubs.ext.vt.edu/PPWS/PPWS-4/PPWS-4.html

Recording of recent Box blight update webinar (ANLA, 2013) http://www.anla.org/knowledgecenter/premium/index.cfm?view=player&colid=112&cid=324&mfid=5538&StartNum=1

Impatiens downy mildew webinar (ANLA, 2012) http://www.anla.org/knowledgecenter/premium/index.cfm?view=player&colid=112&cid=364&mfid=5473&StartNum=1

 

If you have any questions/suggestions or receive questions that are not covered in the above web resources, forward them to me, Mary Ann, Elizabeth, or Norm.  We will do everything we could to help you out.

 

 

Chuan

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Chuan Hong

Professor of Plant Pathology

Hampton Roads Agricultural Research & Extension Center

 

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Written by dmccarthy · Categorized: Community News, Pest and Disease Updates

May 29 2012

Boxwood Blight

Boxwood blight (also called “box blight” in Europe), caused by the fungal pathogen Cylindrocladium pseudonaviculatum (=C. buxicola), was found for the first time in the United States in North Carolina, Virginia and Connecticut in 2011.

Click here to read the Virginia Tech publication regarding Boxwood Blight.

Written by admin · Categorized: Pest and Disease Updates

May 29 2012

Periodical Cicada Emergence

Counties along and adjoining the Blue Ridge, be aware that you will have a periodical cicada emergence this year. I have already had reports of mud tubes and emergence holes. Follow the link to a fact for more information. This is Brood I of the 17 year cicada. Next year Brood II covers much of the Central parts of Virginia.

Click here to read Virginia Tech's publication about the Periodical Cicada Emergence

Written by admin · Categorized: Pest and Disease Updates

May 29 2012

Late Blight of Tomato and Potato

The Pathogen  Phytophthora infestans belongs to a group of plant pathogens commonly called “water molds” because of their affinity and special adaptations to water. Until the late 20th century, water molds were classified as fungi. However, as their evolutionary relationships were revealed, they were reclassified within the stramenopiles, a group with many aquatic organisms, such as brown algae.

Click here to read the Virginia Tech publication about Late Blight of Tomato and Potato

Written by admin · Categorized: Pest and Disease Updates

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