Weed Science Overview

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Weed Science Overview
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Crop Soil Sciences Weed Science
Tim Murphy Griffin Campus 74 Ext., 20 Res., 6
Instr. Fine Turf, Roadsides, Forages, Noncropland
Stanley Culpepper Tifton Campus 90 Ext., 10
Res. Cotton, vegetables, small grains
Timothy Grey Tifton Campus 100
Research Herbicide Fate in Soils, Invasive Weeds,
Weed Mgmt. Peanut, Canola
Eric Prostko Tifton Campus 100 Extension Peanut,
Corn, Sunflowers
William Vencill Athens Campus 50 Res., 50
Inst. Herbicide Physiology, Weed Mgmt. Cotton
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Weed Science Foci

Tropical Spiderwort
Glyphosate ALS-Resistant Palmer amaranth
Methyl-Bromide Replacements
New Herbicides for Turfgrass Weed Management
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METHYL BROMIDE 400 LBS (98)
Phasing out of the marketplace 1999 25
reduction 2001 25 reduction 2003 20
reduction 2005 gone (reduce methyl bromide ai
over time)
NONTREATED CONTROL
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Tropical Spiderwort
Tropical spiderwort infestation, Cairo, GA, 2001.

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Glyphosate-Resistant Palmer Amaranth
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ALS-resistant pigweed
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Turfgrass Weed Management
Weed Management in Sod Production Systems
New Herbicides for Weed Management in Fine Turf
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Invasive Species
Chinese Tallow
Tropical Soda Apple
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Weed Science Research

• 1.6 Total EFT to research
• Since 1999, the Weed Science group has published
  94 refereed journal articles, 8 book chapters,
  259 published abstracts
• Funding 2.5 million since 1999
• Impact
• Research that has lead to critical use exemptions
  100 million/year and other herbicide
  registrations have had an economic impact of
  1.5 million per year
• Tropical spiderwort has been most troublesome
  weed in cotton since 2001 with impact of 5.6
  million per year in increased control costs
• Glyphosate-resistant Palmer amaranth has the
  potential to have an economic impact of 20
  million per year in cotton alone

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Weed Science Extension

• Cumulative Extension Programming since 1999
• Bulletins 18
• Research/Extension Public. 37
• Handbook Articles/Updates 199
• Popular Press 96
• Extension Fact Sheets/Circulars 79
• Newsletters 148
• Slide sets 102
• Local County Production Meeting 438
• Extension Agent Training 83
• Extension-Sponsored Programs 49

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Weed Science Instruction

• CRSS 4340/6340 Weed Science Offered on Athens
  Tifton campus
• ENTO(CRSS)(PATH) 4250/6250 Transgenic Crops
  Pesticide Utilization Offered on Athens
  Tifton campus
• ENTO(CRSS)(PATH) 4740/6740 Integrated Pest
  Management Offered on Athens Tifton campus
• CRSS(ENTO)(PATH) 3500 Turfgrass Pest Management
  Athens campus
• CRSS 6360 Weed Science Field Trip
• CRSS 8330 Herbicide Physiology
• PHRM 8930 Chemical Toxicology

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Weed Science Instruction

• Graduate Students
• Currently 1 Ph.D. 3 M.S.
• Since 1999
• 3 Ph.D. students
• 7 M.S. students
• 4 M.P.P.P.M. students

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