1. Weed Management Practices Utilized by “Top” Peanut Producers in Georgia (2005-2006) E. P. Prostko and J.P. Beasley The University of Georgia Cooperative Extension WSSA-2008

2. 1,230,000 acres planted in US 43.1% in GA

3. Peanut Weed Problems in Georgia Top 10 Most Troublesome Weeds (1-5) SWSS 1 2 3 4 5 5

4. Peanut Weed Problems in Georgia Top 10 Most Troublesome Weeds (6-10) SWSS 6 7 8 9 10

5. Fungicides are applied 4-7 times/year. Will Duffie, 2006

6. Peanut Harvesting (2 step process) Digging/Inverting

7. Peanut Harvesting (2 step process) Combining

8. Georgia Peanut Achievement Club UGA Cooperative Extension Syngenta Since 1950 Educational/recreational program to recognize top peanut growers in the state. Also known as……  One Ton Per Acre Peanut Club  Peanut Money Maker Club

9. Information Obtained from Growers Acres/yield Rotation Varieties Row pattern Seeding rate Planting date Nematodes Thrips Soil/Foliar insects Tillage Weed control Fungicides Irrigation

10. Georgia Peanut Achievement Club Year Growers (#) Total Peanut Acres Average Peanut Acres 20052110,279490 2006125,593466

11. How good are these growers? Peanut Yields +1516+2359 +1367 +2235

12. Tillage Methods Conventional  2005 – 91%  2006 – 92% Strip-Tillage  2005 – 9%  2006 – 8% Associated Problems  weed shifts  reduced performance of DNA herbicides

13. Tropical spiderwort (Bengal dayflower) Palmer Amaranth

14. Row Patterns Single Row  2005 – 33%  2006 - 8% Twin Row  2005 – 67%  2006 – 92% Why??  10-15% increase in weed control associated with row patterns  300-500 lb/A yield increases  1-2% increase in grade ($10/ton)  Reductions in TSWV Single RowTwin Row

15. Ethalfluralin (Sonalan) or Pendimethalin (Prowl) 2005  Sonalan – 86%  Prowl – 10% 2006  Sonalan – 83%  Prowl – 8%

16. Other Herbicides Used - % Common name Trade Name20052006 bentazonBasagran1017 bentazon + acifluorfen Storm1025 chlorimuronClassic50 clethodim/ sethoxydim Select/Poast58 diclosulamStrongarm3858 flumioxazinValor3850 imazapicCadre7675 metolachlorDual Magnum 1425 paraquatGramoxone2425 2,4-DBButoxone5258

17. How do the “top” peanut growers in Georgia manage weeds? conventional tillage twin-rows ethalfluralin (Sonalan) diclosulam (Strongarm) and/or flumioxazin (Valor) imazapic (Cadre/Impose) 2,4-DB (Butyrac/Butoxone)

18. www.gaweed.com