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Program '11: The Best Fungicide Program for YOUR Putting Greens

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Lane Tredway
Southeast NC Professional Turf Conference
Wilmington, NC
April 5, 2011

Published in: Education
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Program '11: The Best Fungicide Program for YOUR Putting Greens

  1. 1. Program ’11: The best fungicide programfor YOUR putting greensLane TredwayAssociate Professor and Extension SpecialistDepartment of Plant PathologyNorth Carolina State University
  2. 2. Heat imposed severe stress on creeping bentgrassgreens in 2010. 30 departure from normal HIGH temperature departure from normal LOW temperature 22.5 Departure from Normal (F) 15 7.5 0 -7.5 -15 -22.5 May June July August Sept Oct
  3. 3. The diagnosticlab saw some bacteria in our samples.
  4. 4. Which bacteriadid they see? Is it a pathogen? The diagnostic lab saw some bacteria in our samples.
  5. 5. Which bacteria did they see? Is it a pathogen? The diagnostic lab saw some bacteria They didn’t say, but in our samples.clearly we have a huge bacteria problem here.
  6. 6. Acidovorax sp.Xanthomonas translucensNo suspected pathogens
  7. 7. Identifying the Acidovorax species associated withcreeping bentgrass putting greens.
  8. 8. Bacteria Research Plans for 2011 • closing in on an identification for the Acidovorax species associated with creeping bentgrasss • inoculations of field plots with Acidovorax and Xanthomonas isolates to determine their pathogenicity • evaluation of antibiotics and other compounds as possible control practices
  9. 9. The problems in 2010 actually started in May. 7Cumulative Rainfall (in.) 5.25 3.5 1.75 0 Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov
  10. 10. Pythium root rot
  11. 11. Many fungicide programs are weak against Pythium. May 13 Headway (1.5 fl oz) May 27 Concert (4.5 fl oz) June 10 Renown (4.5 fl oz) June 24 Daconil + Fore (3.2 + 4 oz) July 8 Medallion + Concert + Signature (0.25 + 4.5 + 4) July 22 Renown + Fore (4.5 + 4 oz) August 5 Medallion + Concert + Signature (0.25 + 4.5 + 4) August 20 Daconil + Fore (3.2 + 4 oz)
  12. 12. Pythium root rot is driven by soil moisture.
  13. 13. Program 13 offers no Pythium root rot protection. May 22 Tartan (2 fl oz) June 5 Insignia (0.9 oz) June 19 Spectro (5.76 oz) July 3 Signature + Daconil (4 + 3.2 oz) July 17 Insignia (0.9 oz) July 31 Signature + Daconil (4 + 3.2 oz) August 14 26GT (4 fl oz) August 28 Tartan (2 fl oz)
  14. 14. “It can’t be a disease because I’m on Program 13!”
  15. 15. “I sprayed Eagle because I’m on Program X andit was on the schedule.”
  16. 16. Spray programs are not uncommon in agriculture.flickr:TaminaMiller
  17. 17. Every golf course is different.Climate, microclimate,expectations, andmanagement styles vary.
  18. 18. Art and Science
  19. 19. Where’s the art in this?
  20. 20. Let’s put the art back indisease control!
  21. 21. Program ’11 How to develop and implement a fungicide program.
  22. 22. Program ’11 How to develop and implement a fungicide program. 1. develop list of diseases based on location, cultivar, soil type, and history
  23. 23. Program ’11 How to develop and implement a fungicide program. 1. develop list of diseases based on location, cultivar, soil type, and history 2. use historical weather data to determine when each disease is ‘normally’ active
  24. 24. Program ’11 How to develop and implement a fungicide program. 1. develop list of diseases based on location, cultivar, soil type, and history 2. use historical weather data to determine when each disease is ‘normally’ active 3. select product(s) that will control the disease(s) that are expected to be active each week
  25. 25. Program ’11 How to develop and implement a fungicide program. 1. develop list of diseases based on location, cultivar, soil type, and history 2. use historical weather data to determine when each disease is ‘normally’ active 3. select product(s) that will control the disease(s) that are expected to be active each week 4. select rates, intervals, and application method
  26. 26. Program ’11 How to develop and implement a fungicide program. 1. develop list of diseases based on location, cultivar, soil type, and history 2. use historical weather data to determine when each disease is ‘normally’ active 3. select product(s) that will control the disease(s) that are expected to be active each week 4. select rates, intervals, and application method 5. adjust as needed based on actual weather conditions
  27. 27. 1. What diseases do you need to control?• ‘A-1’ creeping bentgrass• established in 2005• USGA construction dollar spot Pythium root rot algae brown patch fairy ring Pythium root dysfunction
  28. 28. 2. What conditions favor these diseases?Pythium root dysfunction - average daily soil temperaturesbetween 50ºF and 70ºFfairy ring - average daily soil temperatures between 55ºF and65ºFdollar spot - low temperatures above 50ºFalgae - high temperatures above 80ºFbrown patch - low temperatures above 60ºFPythium root rot - wet soils
  29. 29. 3. Determine when disease activity is expected.
  30. 30. 3. Determine when disease activity is expected.
  31. 31. Too many fungicidesto choose from! flickr:kanickmoses
  32. 32. 4. Resources for fungicide selection.• product labels• Pest Control for Professional Turf Managers• turf disease profiles (turfpathology.org)• disease management utility (turfpathology.org)• Chemical Control of Turfgrass Diseases (Vincelli)
  33. 33. 4. Resources for fungicide selection.• product labels• Pest Control for Professional Turf Managers• turf disease profiles (turfpathology.org)• disease management utility (turfpathology.org)• Chemical Control of Turfgrass Diseases (Vincelli)
  34. 34. 4. Resources for fungicide selection.• product labels• Pest Control for Professional Turf Managers• turf disease profiles (turfpathology.org)• disease management utility (turfpathology.org)• Chemical Control of Turfgrass Diseases (Vincelli)
  35. 35. Disease Management Utility turffiles.ncsu.edu/diseasemgmt
  36. 36. Disease Management Utility on TurfFiles turffiles.ncsu.edu/diseasemgmt
  37. 37. PRDfairy ringdollar spotalgaebrown patchPRR
  38. 38. PRDfairy ringdollar spotalgaebrown patchPRR
  39. 39. PRD Segwayfairy ringdollar spotalgaebrown patchPRR
  40. 40. PRD Segwayfairy ringdollar spotalgaebrown patchPRR Segway
  41. 41. PRD Segwayfairy ring Bayletondollar spotalgaebrown patchPRR Segway
  42. 42. PRD Segway Honorfairy ring Bayletondollar spotalgaebrown patchPRR Segway
  43. 43. PRD Segway Honorfairy ring Bayletondollar spot Honoralgaebrown patchPRR Segway
  44. 44. PRD Segway Honorfairy ring Bayleton Torquedollar spot Honoralgaebrown patchPRR Segway
  45. 45. PRD Segway Honorfairy ring Bayleton Torquedollar spot Honor Torquealgaebrown patchPRR Segway
  46. 46. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torquealgaebrown patchPRR Segway
  47. 47. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torquealgaebrown patchPRR Segway Signature + Banol
  48. 48. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GTalgaebrown patchPRR Segway Signature + Banol
  49. 49. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GTalgaebrown patch 26GTPRR Segway Signature + Banol
  50. 50. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GTalgae Daconil Ultbrown patch 26GTPRR Segway Signature + Banol
  51. 51. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm Calgae Daconil Ultbrown patch 26GTPRR Segway Signature + Banol
  52. 52. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm Calgae Daconil Ult Disarm Cbrown patch 26GTPRR Segway Signature + Banol
  53. 53. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm Calgae Daconil Ult Disarm Cbrown patch 26GT Disarm CPRR Segway Signature + Banol
  54. 54. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm C Honoralgae Daconil Ult Disarm Cbrown patch 26GT Disarm CPRR Segway Signature + Banol
  55. 55. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm C Honoralgae Daconil Ult Disarm C Forebrown patch 26GT Disarm CPRR Segway Signature + Banol
  56. 56. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm C Honoralgae Daconil Ult Disarm C Forebrown patch 26GT Disarm C HonorPRR Segway Signature + Banol
  57. 57. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm C Honoralgae Daconil Ult Disarm C Forebrown patch 26GT Disarm C HonorPRR Segway Signature + Banol Terrazole
  58. 58. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm C Honoralgae Daconil Ult Disarm C Forebrown patch 26GT Disarm C HonorPRR Segway Signature + Banol Terrazole Subdue
  59. 59. PRD Segway Honor Signature + Banolfairy ring Bayleton Torquedollar spot Honor Torque 26GT Disarm C Honoralgae Daconil Ult Disarm C Forebrown patch 26GT Disarm C HonorPRR Segway Signature + Banol Terrazole Subdue Segway Bayleton Honor Torque Signature 26GT Terrazole Disarm C Subdue Honor 0.9 fl oz 1 fl oz 1.1 oz 0.6 fl oz 4 oz 4 fl oz 4 fl oz 5 fl oz 1 fl oz 1.1 fl oz water-in water-in water-in water-in foliar foliar water-in foliar water-in foliar Banol Daconil Ult Fore 2 fl oz 3.2 fl oz 6 oz foliar foliar foliar
  60. 60. Program Infinity (March - June) Date Product(s) March 13 Segway (0.9 fl oz) April 3 Bayleton (1 fl oz) April 10 Honor (1.1 fl oz) May 1 Torque (0.6 fl oz) May 8 Signature + Banol (4 +2 oz) May 22 Daconil + 26GT (6 + 4 oz) May 29 Terrazole (4 oz) June 5 Disarm C (5 fl oz) June 12 Subdue Maxx (1 fl oz) June 19 Fore + Honor (6 + 1.1 oz)
  61. 61. Comparing ways to develop and implementfungicide programs 1. Program 13 (Clemson) 2. BASF Program 3. Bayer Program 4. Syngenta Program 5. Program Infinity 6. Program ’11 - treatments adjusted as needed based on weather conditions
  62. 62. Program ’11: How to follow along...
  63. 63. Program ’11: How to follow along... turfpathology.org
  64. 64. Program ’11: How to follow along... turfpathology.org facebook.com/turfpathology
  65. 65. Program ’11: How to follow along... turfpathology.org facebook.com/turfpathology twitter.com/ncturfpathology
  66. 66. Program ’11: How to follow along... turfpathology.org facebook.com/turfpathology twitter.com/ncturfpathology feeds.feedburner.com/turfpathology
  67. 67. Support nematoderesearch at Clemson and NC State! http://sharonapbio-taxonomy.wikispaces.com
  68. 68. Recovery from aerification is driven by fertility.

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