1. 2017 Tobacco GAP Update Dr. Bob Pearce Extension Tobacco Specialist
Crop Management
Environmental Management

2. Acknowledgements For providing data, slides, information and advice.
Dr. Emily Pfeufer
Dr. Chuck Johnson
Dr. Andy Bailey
Dr. Eric Walker
Dr. Will Snell

3. Cumulative Rainfall 2016 Growing Season

4. Relative Humidity During Curing 2016 season

5. 2016 Burley Season Summary Production (lbs.) 100 – 110 million Quality
30 to 40% below expectations
Quality
Yellow
Uneven color
Despite low production and marginal quality the lack of “demand” for the 2016 crop is a concern

6. U.S. Cigarette Production
Billion Pieces
2016: -4%
Source: TMA
Economics

7. Global Consumption of “American-Blended” Cigarettes (25% of World Market)
Millions
Source: TMA data
Economics 7

8. U.S. Burley Imports
Economics

9. U.S. Burley Exports
Economics

10. Burley Prospects for 2017
Overall volume contracted appears it will be down slightly
Most growers have experienced decreased contract volume
A few growers have been offered increases
Prices vary by company
A few increases on top grades
Mostly flat to slight decreases
Specific stalk position requirements by some companies.

11. Tobacco companies can be choosy when selecting growers with whom to contract. Grower that make an effort to observe and comply with GAP principles may have an advantage under these conditions.

12. Focus Topics for 2017 Tools to help manage recordkeeping requirements
Update on alternatives to EPS trays
Spray program for transplant production
Burley variety update
Managing black shank disease
Managing leaf spot diseases
Frogeye Leaf Spot on Burley
Angular Leaf Spot on Dark
Dark tobacco variety update

13. Comprehensive Label/SDS location
Agrian Label Search

18. Documenting rainfall on your farm

21. Focus Topics for 2017 Tools to help manage recordkeeping requirements
Update on alternatives to EPS trays
Spray program for transplant production
Burley variety update
Managing black shank disease
Managing leaf spot diseases
Frogeye Leaf Spot on Burley
Angular Leaf Spot on Dark
Dark tobacco variety update

22. Potential Alternatives to EPS trays

23. Media x Tray Trial Lexington KY 2016
Three tray types
8 Brands of soilless media
TN-90
Evaluations:
Dry cells
Germination
Spiral roots
Usable plants
Height to bud
Stem diameter

24. Dry Cells

25. Germination

26. Spiral Root

27. Usable Plants %

29. EPS Black Tray Green Tray

30. Summary
Plant performance (quality) in the greenhouse similar between plastic trays and EPS trays (new trays).
Field performance similar
Useful life of trays 10 + years?
Reduced disease carryover?
Cost will be a factor

31. Focus Topics for 2017 Tools to help manage recordkeeping requirements
Update on alternatives to EPS trays
Spray program for transplant production
Burley variety update
Managing black shank disease
Managing leaf spot diseases
Frogeye Leaf Spot on Burley
Angular Leaf Spot on Dark
Dark tobacco variety update

32. Control of Foliar Diseases in Float System
Aids in disease control in field
Cultural controls
Proper fertility
Clip regularly
Ventilation to reduce moisture
Limited chemical options
Manzate Pro Stick
Quadris
Single application

33. Control of Foliar Diseases in Float System
Manzate Pro Stick
Protective type fungicide
Must be in place at time of infection
Apply often
Complete coverage of leaf surfaces

34. Control of Foliar Diseases in Float System
Quadris
Local systemic type fungicide
Some curative action
Apply only once
Maintains activity for about 2 weeks

35. Recommended Spray Program for Foliar Diseases in Float System
Begin weekly sprays with Manzate Pro Stick when plants cover the cell.
1 level teaspoon per gallon
Use fine mist (hollow cone nozzles)
Spray until solution runs off leaves
Can mix with acephate if needed
Clip first then spray
After 2nd clipping make one application of Quadris
4 cc in 5 gallons water per 1000 square feet
Do not mix with other chemicals
Continue with weekly Manzate sprays until plants go to the field

36. Focus Topics for 2017 Tools to help manage recordkeeping requirements
Update on alternatives to EPS trays
Spray program for transplant production
Burley variety update
Managing black shank disease
Managing leaf spot diseases
Frogeye Leaf Spot on Burley
Angular Leaf Spot on Dark
Dark tobacco variety update

37. Burley Variety Yields 2013-2015 No disease pressureHB

38. Burley Variety Black Shank Survival 2010-2014

39. Variety performance with both black shank and fusarium wilt

40. On-Farm Variety Trial
Due to labor issues crop stood in field for more than 6 weeks after topping.
Severe leaf spot pressure
No black shank pressure

41. On-Farm Variety Trial

45. Summary KT 215LC is a niche variety not intended for general use
High levels of black shank resistance
Race 0 – 10
Race 1 - 9
High levels of Fusarium Wilt
Current rating – 8
Not resistant to virus
May not hold well in the field

46. Focus Topics for 2017 Tools to help manage recordkeeping requirements
Update on alternatives to EPS trays
Spray program for transplant production
Burley variety update
Managing black shank disease
Managing leaf spot diseases
Frogeye Leaf Spot on Burley
Angular Leaf Spot on Dark
Dark tobacco variety update

47. Chemicals for Control of Black Shank
Ridomil Gold SL (up to 3 applications)
Transplant water
1st cultivation
Layby
Orondis Gold 200 (only one application)
Presidio (only one application)

48. On-Farm Black Shank Trial Clark County 2016
Rate oz/A
Time 1)
Check 2)
Ridomil Gold SL
8.0
TPW
16.0
1st cult 3)
Orondis Gold
4.8
6.0
Ridomil Gold 480 SL
Layby 4)
Presidio
4.0

49. Dead or diseased plants % of initial stand

50. Green Stick Weight (lbs.)

51. Black Shank Management Program
Rotate fields regularly
Choose a resistant variety
Use a transplant water treatment
Ridomil alone
Orondis plus Ridomil (longer residual activity)
For moderate to severe black shank follow-up with a 1st cultivation or layby treatment
Ridomil
Presidio

52. To use Orondis/Ridomil in transplant water
Required labels
Orondis Gold 200 label
Ridomil Gold label
Ridomil Gold 24 c
Orondis/Ridomil Gold 2ee Recommendation

53. Focus Topics for 2017 Tools to help manage recordkeeping requirements
Update on alternatives to EPS trays
Spray program for transplant production
Burley variety update
Managing black shank disease
Managing leaf spot diseases
Frogeye Leaf Spot on Burley
Angular Leaf Spot on Dark
Dark tobacco variety update

54. Frogeye leaf spot

55. Frogeye Leaf spot 2016 Very severe in South-Central, KY
15+ inches of rain in July
Did not seem to respond to Quadris applications
Developed up the stalk in leaf and tip grades

56. Managing Leaf Spots in the Field
Keep transplants well protected to avoid introducing disease
Rotate away from fields with a history of severe leaf spot disease
Consider an application of a protective fungicide (manzate pro-stick) if disease appears early
Arrange nozzles to achieve thorough coverage of all leaves

57. Angular Leaf Spot
Bacterial disease occurring following damaging weather events.
Streptomycin has been standard control recommendation.
AgriMycin: 1 lb per 100 gal (200 ppm)
Try to get at least 50 gal/A on crop
3 to 6 or more weekly sprays
No limit on applications, no PHI
Resistance??
Other options:
Actigard 50WG
0.5 oz per acre
Can spray up to 3 times on 10-day schedule
Do not apply within 21 days of harvest
Copper:
Nordox 75WG: 2 ½ to 3 lbs/A
Copper-Count-N: 4 to 5 qts/A
Application schedule similar to streptomycin

58. Angular leaf spot of tobacco
Project details:
Evaluated streptomycin, Actigard, Oxidate, Double Nickel, and Companion for efficacy against ALS in dark tobacco
Applied 3 times during season
KT D14 and Narrowleaf Madole
Angular leaf spot
Target spot

59. Angular leaf spot of dark tobacco
No treatment differed from the UTC or streptomycin in final ALS disease severity b ab ab a a ab
Target spot
UTC Strep Actigard Oxidate Dbl Nickel Companion
How effective are streptomycin alternatives in managing angular leaf spot of tobacco?
By Bailey, Pearce, and Pfeufer labs at U. Kentucky; funded by Altria

60. Angular leaf spot of dark tobacco
KTD14 consistently yielded better than NL Madole. No treatment yielded better (or worse) than UTC or strep in either dark variety
By Bailey, Pearce, and Pfeufer labs at U. Kentucky; funded by Altria

61. Focus Topics for 2017 Tools to help manage recordkeeping requirements
Update on alternatives to EPS trays
Spray program for transplant production
Burley variety update
Managing black shank disease
Managing leaf spot diseases
Frogeye Leaf Spot on Burley
Angular Leaf Spot on Dark
Dark tobacco variety update

62. 2016 Dark Tobacco Variety Guide
Maturity
Black Shank (0-10)a
Useb
Relative Yield Scorec
Relative Quality Scorec
Black Root Rot
Fusarium Wiltd
TMV
Wildfire
Race 0
Race 1
NL Mad LC
Med-Late
F/A 7 9
None
TR Madole
Early-Med F 6 8
Lit Crit
A/F 5
DF 911
Medium
High
KY 160 A 3
KY 171
Med
VA 309 2
Low -
VA 359 1
TN D950
Early
KT D4 LC 4
DT 538 LC
DT 558 LC
KT D6 LC
PD 7312 LC
PD 7302LC 10
PD 7309LC
KT D8LC
PD 7318LC
PD 7305LC
PD 7319LC
KT D14 LC

63. 2016 Dark Tobacco Black Shank Variety Trial Kent Boyd Farm – Hopkinsville KY
LSD (0.10) = (total)
Yield (lbs/A)
Final %Stand:
(LSD0.10 = 11.1)

64. Thank you!