Annual Plant Diseases Clinic Summary - 2007 SB 61
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This publication was reviewed on Jun 2, 2011.
This report includes both physical samples submitted to the Plant Disease Clinics and results from analyses of digital samples submitted through the DDDI system in 2007.
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Annual Plant Disease Clinic Summary 2007
- Plant Disease Clinic Summaries
- 2007 Plant Specimen Diagnoses
- Monthly Sample Submission Summary
- Monthly Sample Submission Summary (Graph)
- Homeowner IPM Samples and Diagnoses (Graph)
- Commercial Samples and Diagnoses (Graph)
- Distribution of Homeowner Sample Submission by County
- Distribution of Commercial Sample Submission by County
- Summary of Diagnoses by Crop
- Field Crops
- Fruits and Nuts
- Herbaceous Ornamentals
- Woody Ornamentals
- Turf and Forage Grasses
- 2006-07 Commercial Sample Comparison (Graph)
- 2006-07 Homeowner Sample Comparison (Graph)
- 2007 Commercial vs. Homeowner Sample Comparison (Graph)
The Plant Pathology Department at the University of Georgia’s College of Agricultural and Environmental Sciences maintains two plant disease diagnostic clinics—one in Athens, Ga., and one in Tifton, Ga. Commercial turf, fruits, forage crops, greenhouse, ornamental nursery and homeowner samples are analyzed at the Plant Disease Clinic in Athens. Samples of commercial field crops, pecans and vegetables are diagnosed at the Plant Disease Clinic in Tifton. Diagnoses and management recommendations are returned to county faculty. The clinics maintain a computerized database of samples and their diagnoses and a reference library for use by extension agents, specialists, researchers and students.
Extension Plant Pathology specialists also participate in digital plant diagnostics using the DDDI system, which helps provide a more timely diagnosis and recommendation for a number of plant disease samples.
Some pathogens identified in the “Crop Summaries” section are listed by both genus and species, whereas others are identified as the genus or “species.” Our plant disease clinic does not routinely identify plant pathogens by species because species identification is very time-consuming and often not necessary for management recommendations. In cases where only one species is known or where species are easily identifiable, the species of the pathogen is listed.
The following abbreviations are used throughout the summaries:
|PDC||Plant Disease Clinic|
|IPM||Homeowner IPM Clinic|
|TDTD||Too deteriorated to diagnose. This indicates that the plant sample submitted to the clinic was too deteriorated to properly diagnose.|
|ETRI||Ectotrophic root-infecting fungi (similar to G. graminis)|
|GGG||Gaeumannomyces graminis var. graminis|
|LSREP||Lower stem, root or environmental problem. This diagnosis indicates that no pathogens were associated with the part of the plant submitted and that the origin of the problem either was occurring lower on the plant or was due to environmental or cultural conditions.|
This report includes both physical samples submitted to the Plant Disease Clinics and results from analyses of digital samples submitted through the DDDI system. The DDDI database includes the samples contained herein and serves as a record-keeping system for our diagnostic clinics (http://www.dddi.org/uga).
Finally, it is interesting to see which sample categories have increased or decreased over the last two years. For instance, commercial herbaceous ornamental samples decreased by half from 2006 to 2007. This could be a factor of the severe drought. On the other hand, turfgrass sample submission has increased over the last year. In addition, homeowner sample numbers bounced back from 2006, when the diagnostic clinic was closed for over half the year.
Addresses for submission of physical samples to the Plant Disease Clinics are:
|Commercial turf, ornamentals, forestry and fruits
Plant Disease Clinic
2106 Miller Plant Sciences Bldg.
Athens, GA 30602-4356
|Commercial vegetables, row crops and pecans
Tifton Plant Disease Clinic
4604 Research Way
Tifton, GA 31793
Information for preparation of samples for submission can be found at: http://plantpath.caes.uga.edu/extension/DiseaseLibrary.html
|2007 Monthly Sample Submission Summary|
As shown above, the busiest months in the diagnostic clinics are March and June through October. Sample numbers decrease dramatically during the winter months.
Comparisons between the number of samples submitted to the clinic and the number of diagnoses made (shown below) are for both homeowner and commercial samples. The numbers oftentimes differ due to the fact that some plant samples have multiple pathogenic organisms contributing to the death of the plant. This is especially true for turfgrass samples and diseases.
SB 61 |
This publication was reviewed on
Jun 2, 2011.
The University of Georgia and Fort Valley State University, the U.S. Department of Agriculture and counties of the state cooperating. The Cooperative Extension Service, the University of Georgia College of Agricultural and Environmental Sciences offers educational programs, assistance and materials to all people without regard to race, color, national origin, age, sex or disability. An Equal Opportunity Employer/Affirmative Action Organization Committed to a Diverse Work Force