1. A Look Back at the 2003 Weed Control Year in Peanut
Eric P. Prostko
Extension Weed Specialist
GCPA December 2003

2. The 2003 GA Peanut Crop According to latest USDA reports…..
harvested acres at 535,000 (up 6%)
3400 lbs/A average yield (the best ever!)
1984 (3375 lbs/A)

3. Topics for Discussion rainfall Valor Florida pusley
tropical spiderwort
eclipta
copperleaf
groundcherry
glyphosate mishaps

4. Tifton Rainfall April-August 2003

5. Valor Update Less injury than expected 2001: 51 WDG 2002-03: 51 WP
2004: Valor SX 51WDG
* smaller particles
* dispersing agents
* easier to get into suspension
10% price reduction in 04’

6. Valor Injury - 2003 Pulaski County

7. Peanut yield response to Valor (3 ozs/A) formulation and timing.
Attapulgus
P = 0.80
CV = 12

8. Florida pusley Why??? extreme measures
No DNA used
lack of activation
tie up on residue
untimely POST’s
the R word?
extreme measures
Prowl, Sonalan, Dual Magnum, Strongarm, and Valor

9. Tropical Spiderwort

10. Eclipta Strongarm, Valor, Basagran Does well in wet, cool conditions
should not be a problem in peanuts
Strongarm, Valor, Basagran

11. Hophornbeam copperleaf
western counties
more on roadsides
easily controlled with Strongarm, Valor, and Ultra Blazer

12. Groundcherry 3 common species little information is known
cutleaf
3 common species
cutleaf (annual)
smooth (perennial)
clammy (perennial)
little information is known
cutleaf control
Dual/Outlook
Ultra Blazer
SWSS
SWSS

13. Glyphosate Mishaps in Peanut!

14. Roundup WeatherMax vs. Crop Oil

15. University of
Georgia
Extension Weed
Science
(gaweed.com)