ies - bugwoodcloudies november 3, 2011 mark mcclure forest health specialist georgia forestry...
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![Page 1: ies - BugwoodCloudies November 3, 2011 Mark McClure Forest Health Specialist Georgia Forestry Commission 2910 Newton Rd. Albany, GA 31701 . Cogongrass In Georgia “Those who fail](https://reader033.vdocuments.site/reader033/viewer/2022050109/5f46dc9380788e55ec22504e/html5/thumbnails/1.jpg)
Cogongrass in Georgia: 2011 Update
ies
November 3, 2011
Mark McClure Forest Health Specialist Georgia Forestry Commission 2910 Newton Rd. Albany, GA 31701
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Cogongrass In Georgia
“Those who fail to learn from history are doomed to repeat it.” Sir Winston Churchill
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Cogongrass In Georgia
Georgia’s cogongrass goal:
100% detection and eradication.
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Free Zone
Free Zone Outlier Zone
Outlier Zone Epicenter
Heavily Infested Zone
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Cogongrass Infestations in Georgia
Summary of Georgia Cogongrass Sites:
•596 Locations (10/13/11)
•49 Counties
•166+ acres total
•All sites are being treated!
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Cogongrass Infestations in Georgia
Summary of Georgia Cogongrass Sites:
•596 Locations (10/13/11)
•49 Counties
•166+ acres total
•All sites are being treated!
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Georgia Counties with Known Cogongrass Infestations • Atkinson 1 • Baker 21 • Barrow 1 • Brantley 4 • Brooks 7 • Calhoun 5 • Camden 1 • Carroll 46 • Catoosa 1 • Charlton 20 • Chattahoochee 3 • Clarke 1 • Clay 1 • Clinch 2 • Cobb 1 • Colquitt 7
• Cowetta 1 • Crawford 2 • Crisp 1 • Decatur 132 • DeKalb 1 • Dougherty 1 • Douglas 1 • Early 50 • Echols 8 • Grady 42 • Haralson 3 • Lee 2 • Marion 9 • McDuffie 1 • Meriwether 1 • Miller 30
• Mitchell 24 • Muscogee 1 • Newton 1 • Paulding 2 • Pike 3 • Randolph 6 • Richmond 3 • Seminole 68 • Stewart 3 • Talbot 6 • Telfair 2 • Terrell 1 • Thomas 45 • Troup 4 • Upson 1 • Ware 1 • Worth 18
49 counties with a total of 596 sites as of October 13, 2011 ranging in size from <0.1 to >10.0 acres totaling 166.5 acres
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Reports of Cogongrass as of 10-13-11
Title 1994-2006: 59 total sites 2007: 37 sites reported, 96 total sites 2008: 131 sites reported; 227 total sites 2009: 110 sites reported; 337 total sites 2010: 135 sites reported; 472 total sites 2011: 124 sites reported; 596 total sites
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Cogongrass locations Pine timber 67.7% Right-of-ways 22.5% Open 7.2% Yard 1.2% Planted 1.3% Food plots 0.03%
Logging Equipment and a small number of tree planter introductions.
R-O-W includes both highway and powerline.
Open includes pastures, pond dams, woods roads, landfill, bar pit and baseball field.
Yard includes flower beds & balled landscape trees.
Planted-planted for pasture decades back.
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Status of Cogongrass spots
Title
New spots treated in 2011: 124 sites-26.5 acres
Spots retreated in 2011:
64 sites-36.1 acres
Total spots examined in 2011: 596
All (100%) of the 596 total spots have been treated.
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Status of Cogongrass spots
Title
Year 1 Negative 157 26.3% Year 2 Negative 147 24.7% Eradicated 87 14.6% Active 205 34.4% TOTAL 596 100.0%
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Cogongrass Success
65.6% all known sites being negative.
157 spots negative for one year.
147 spots negative for two years.
87 spots Eradicated.
All sites have been treated!
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Cogongrass Success
Inactive # Counties 0-25% 15 26-50% 4 51-75% 10 76-100% 20
49 Counties with Cogongrass
* Decatur Co.-132 spots. 102 spots or 77% are
negative.
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Cogongrass Success
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Herbicide treatments & monitoring Control •All areas excluding: •1.5-3% Chopper® + 1% glyphosate+ 1% Dyne-a-pak •1-2% Arsenal AC® + 1% glyphosate+ 1% Dyne-a-pak
•Hardwood sites: •3% glyphosate + 1% Dyne-a-pak
•Treatments being made mid-May thru October. •If possible, sites are burned in winter prior to spraying to remove dense litter layer.
•Monitor annually for 5+ years
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Funding & Support Provided by USDA Forest Service
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Cogongrass Identification Brochures
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Cogongrass banner stand & poster
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QUESTIONS ?
Mark McClure Forest Health Specialist Georgia Forestry Commission 2910 Newton Rd. Albany, GA 31701 Office: 229-430-5122 Cell: 229-869-8592 E-mail: [email protected]