Integrated Plant Management

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GCSAA 2009 presentation on Integrated Plant Management: Anticipating Problems

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Integrated Plant Management

  1. 1. Integrated Plant Management Anticipating Problems Justin C. Ruiz, CGCS The Rim Golf Club Payson, Arizona
  2. 2. Being Creative
  3. 3. Integrated Plant Management Defined “IPM is a sustainable approach to managing pests by combining biological, cultural, physical and chemical tools in a way that minimizes economic, health, and environmental risks.” Reference: http://www.ag.ndsu.nodak.edu/aginfo/ndipm/ipmdefinition.htm
  4. 4. Presentation Outline • Growing Degree Day Calculation • Billbug Control – Degree Day Model – Scouting – Chemical Application • Poa Control – Degree Day Model – Plant Phenology – Chemical Application
  5. 5. Growing Degree Day “The number of degrees the average temperature is above a baseline temperature. Used to predict insect and plant development.”
  6. 6. Base Temperature “The temperature at which insect/plant development occurs.”
  7. 7. Calculating Growing Degree Days (GDD) GDD = ____ -T T T max + min base 2 •Sine Wave Method is more accurate. You can Tmax = Daily High find calculators on the web. Tmin = Daily Low Tbase = 50 degrees
  8. 8. Integrated Plant Management Billbug Control
  9. 9. Bluegrass Billbug Adult www.biosurvey.ou.edu/okwild/misc/bgbill.html
  10. 10. Billbug Control • Degree Day Model
  11. 11. Degree Day Model • Adults become active 280-352 GDD • Last effective adult contact control 560-624 GDD • Larvae control is effective 925-1035 GDD • Significant visual damage occurs 1330-1485 GDD
  12. 12. Billbug Damage
  13. 13. Billbug Control • Degree Day Model • Scouting/Trapping
  14. 14. Billbug Scouting • Using pitfall traps • Observing cart paths and greens • Clippings in mower buckets
  15. 15. Billbug Trap Data Biilbug Trapping vs. GDD 1200 25 1000 20 800 15 GDD 600 Billbugs 10 400 5 200 0 0 ne ch ril ay Ap Ju ar M M Chlorpyrifos Application made April 24th
  16. 16. Chemical Application • 4/24/08 Chlorpyrifos (1oz/M) – Ring around perimeter of golf course • Target adult billbugs • GDD aprox. 502 • 5/12/08 Clothianidin (12.8oz/A) – All short cut and South facing slopes in rough • Target billbug larvae • GDD aprox. 799* * Application made a few days early in preparation for a tournament
  17. 17. When to Spray What • Adult Control • Contact insecticide (350-600GDD) » Compare with trap data • Larvae Control • Systemic insecticide (925-1035GDD)
  18. 18. Biological Control • Entomopathogenic Nematodes – Steinernema carpocapsae • Endophytic grasses
  19. 19. Infecting Nematodes www.ag.ndsu.edu/pubs/plantsci/pests/e1229w.htm
  20. 20. Endophyte Mycelium www.bsu.edu/classes/ruch/msa/blackwell.html
  21. 21. Integrated Plant Management Poa annua Control
  22. 22. Poa annua Anticipation • Degree Day Modeling • Plant Phenology
  23. 23. Degree Day Model • Seed head regulation 400-500 GDD • Majority of seed head production 900-1400 GDD
  24. 24. Reference: Fenner, M, 1985. Seed Ecology, Chapman & Hall, London.
  25. 25. Poa annua commons.wikimedia.org/wiki/Image:Poa_annua.jpeg
  26. 26. Poa annua Anticipation • Plant Phenology
  27. 27. Plant Phenology • Poa seedhead production occurs when Forsythia starts to bloom
  28. 28. Oregon State University Horticulture Department
  29. 29. When to Spray What • Seedhead Regulation • 400-500GDD • Growth Regulation • Label interval once growth begins • Herbicides • Two application in Fall 4 weeks apart
  30. 30. Biological Control • Xanthomonas campestris pv. poae • Bacteria to attack post emerged plants
  31. 31. Justin C. Ruiz, CGCS The Rim Golf Club Payson, Arizona 928-472-1456 justinr@therimgolfclub.org

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