2008 Peanut Production Update Agronomics

1. 2008 Peanut Production UpdateAgronomics CCA Training 18 January 2008 Perry, GA University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

2. The following cultivars will account for 90% + of the acreage Georgia Green AP-3 Georgia-03L Georgia-02C AT 3085RO C-99R Cultivars in 2008 University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

3. The following cultivars will have a LIMITED seed supply, mostly in seed increase acreage. DO NOT expect seed available for commercial production Georgia-06G Georgia Greener Florida-07 McCloud York Cultivars in 2008 University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

4. The following cultivars were released for 2008 and will be in seed increase stage Georgia-07W Tifguard AP-4 AT 215 New Cultivar Releases University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

5. Advanced breeding line GA 011514 Progeny of a cross between C-99R and Georgia Green Medium to medium + maturity “W” stands for white mold resistance Not high oleic Georgia-07W University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

6. Advanced breeding line C724-19-15 Progeny of a cross between C-99R and Coan Medium maturity Very good resistance to root-knot nematode and TSWV Shell out similar to C-99R, not high oleic Tifguard University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

7. Root Knot Nematode TrialDecatur Co. (irrigated) Root gall ratings based on % of root system with galls 1 = 1-10%, 9 = 81-90%

8. Root Knot Nematode TrialDecatur Co. (irrigated)

9. Root Knot Nematode TrialWebster Co. (non-irrigated) Root gall ratings based on % of root system with galls 1 = 1-10%, 9 = 81-90%

10. Tifguard Tifguard Georgia Green

11. Acreage Planted in 2007 for 2008 Seed Supplysource:Georgia Crop Improvement Association University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

12. Cultivars and Maturity Range University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

13. Medium-Large AP-3 Georgia-03L McCloud Large Seeded Runners AT 215 C-99R Florida-07 Georgia-01R ViruGard Cultivar Seed Sizes • Medium • AT 3081R • AT 3085RO • Carver • Georgia-02C • Georgia-06G • Georgia Greener • Small • Georgia Green • York

14. GA-06G AP-3 GA-06G GG GA-03L AP-3 AT 3085RO AP-4 AT 3081R Attapulgus – 8/21/07 – planted June 11 (71 DAP)

15. 3085 AP-3 AP-3 AP-4 GA-06G GA Green GA-03L

16. Andru II AT 215 AT 3085RO Georgia-02C Florida-07 McCloud York High Oleic Cultivars University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

17. Georgia-06G Trials

18. Cultivar X Row Pattern X Tillage Trial Tifton - 2007

19. Yield comparisons available from the University of Georgia Statewide Variety Test program www.swvt.uga.edu Yield Data University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

20. Georgia-03L Seeding Rate Trial

21. 2008 Index Plant Population

22. Georgia Peanut Acreage1950 - 2007 (1,000 acres)

23. Georgia Peanut Acreage2002 - 2007 (1,000 acres)

24. TSWV still dictates planting date April planting is at greater risk Monitor soil temperature closely if planting in April If planting in April, plant the following cultivars with increased resistance to TSWV AP-3, Georgia-02C, Georgia-03L, AT 3085RO, DO NOT plant late maturing cultivars after May 25th – Georgia-02C, C-99R, York, Georgia-01R DO NOT plant late maturing cultivars in fields with significant levels of peanut root-knot nematode Planting Date Reminders University of Georgia – College of Agricultural and Environmental Sciences Department of Crop and Soil Sciences

25. Planting Date Trials 10 9 11 18 16 19 11 30 17 17

26. Planting Date TrialsTifton Lbs/A

27. Planting Date TrialsTifton % TSWV

28. Planting Date X Mid-Maturing CultivarsPonder Farm - 2006 a a a a a ab %TSWV Severity ab bc b b b c c c LSD = 5.6 3.4 2.3

29. Planting Date X Mid-Maturing CultivarsPonder Farm - 2006 Lbs/A LSD = 5.6 3.4 2.3

30. May 23 April 24 May 2 May 8 May 16 Effect of Planting Date and Cultivar on Incidence of Spotted Wilt in Peanut, Rigdon Farm, 2006 Incidence of TSW (%) Planting Date Source: Dr. Albert Culbreath, UGA

31. April 24 May 23 May 2 May 8 May 16 Effect of Planting Date and Cultivar on Incidence of White Mold in Peanut, Rigdon Farm, 2006 Incidence of white mold (%) Planting Date Source: Dr. Albert Culbreath, UGA

32. May 8 May 23 April 24 May 2 May 16 Effect of Planting Date and Cultivar on Yield in Peanut, Rigdon Farm, 2006 Yield (lb/A) Planting Date Source: Dr. Albert Culbreath, UGA

33. 2008 Index Planting Date Points

34. Peanut Rx

35. Variety Comparison

36. 2008 Index Plant Population

37. Prescription Programs- Long Season Cultivars • Be aware of tropical storms later in the season that may delay harvest. • Delay start of fungicide programs and stretch interval between fungicide applications, especially in drier weather.

38. Prescription Programs in General • USE REDUCED FUNGICIDE INPUTS ONLY IN LOW RISK FIELDS! • Prescription programs are now endorsed by Syngenta • MOST fungicide programs can be modified to low, medium, and high risk fields

39. University of Georgia PEANUT Research and Extension