1. Southern Turfgrass Diseases

2. Bermudagrass leaf spot

3. Stolon Rot of St. Augustinegrass

4. Spring dead spot in bermudagrass

5. Turfgrass Problems 3 3 Physiological 3 3 Cultural 3 3 Insect 3 3 Large Animal (People) 3 3 Disease 3 3 Physiological 3 3 Cultural 3 3 Insect 3 3 Large Animal (People) 3 3 Disease

6. Disease Diagnosis 3 3 Host 3 3 Time 3 3 Symptoms 3 3 Pathogen ID 3 3 Host 3 3 Time 3 3 Symptoms 3 3 Pathogen ID

7. Environment Host Pathogen Disease

8. Pathogens 3 Fungi 3 Nematodes 3 Viruses 3 Fungi 3 Nematodes 3 Viruses

9. Brownpatch in zoysiagrass lawn

10. Brownpatch in St. Augustinegrass

11. Brownpatch in bermudagrass lawn

12. Brownpatch symptoms distinct boundary between healthy and diseased grass

13. Brownpatch symptoms showing rotted tissue where shoot attaches to stem

14. Closeup showing rotted shoot tissue

15. Brownpatch in St. Augustinegrass Rate of A.I./ *Ratings for Brownpatch Activity Fungicide1,000 sq. ft.11/25/8511/11/8611/6/9711/30/883/9/89 PCNB12 oz.1.01.01.31.01.3 Benomyl2 oz.7.36.7 Chipco 260192 oz.4.05.25.32.04.2 Daconil4 oz.8.05.24.0 Prostar2 oz.1.01.71.53.5 Banner2 oz.2.03.5 Check9.08.08.34.08.0 Rate of A.I./ *Ratings for Brownpatch Activity Fungicide1,000 sq. ft.11/25/8511/11/8611/6/9711/30/883/9/89 PCNB12 oz.1.01.01.31.01.3 Benomyl2 oz.7.36.7 Chipco 260192 oz.4.05.25.32.04.2 Daconil4 oz.8.05.24.0 Prostar2 oz.1.01.71.53.5 Banner2 oz.2.03.5 Check9.08.08.34.08.0

16. Bermudagrass leaf spot symptoms

17. Closeup of bermudagrass leaf spot symptoms

18. Dollar spot in bermudagrass

19. Closeup of dollar spot symptoms

20. Closeup of dollar spot symptoms in early morning before sunlight

21. Dollar spot symptoms on leaf blades

22. St. Augustine decline symptoms (SAD)

24. Healthy leaf (left) – SAD (middle) – Iron chlorosis (right)

25. St. Augustine decline

26. Pythium blight in ryegrass

27. Spring Dead Spot 3 Bermudagrass 3 Winter 3 Bermudagrass 3 Winter

28. Spring dead spot in bermudagrass

30. Rhizoctonia mycelium Causal organism for brownpatch

31. Helminthosporium

32. Take-all patch fungal organism

33. Pythium blight Mycelium and spores

34. Lightning injury on golf green

35. Gray leaf spot in St. Augustine

38. Rust in a zoysia lawn

39. Nematodes in bermudagrass

41. Nematodes 3 All grasses (Bermudagrass, zoysiagrass)   55º F - Moist 3 All grasses (Bermudagrass, zoysiagrass)   55º F - Moist

42. Nematode injury on a golf green

43. Bermudagrass decline

44. Bermuda Decline

45. Bermuda decline Early symptoms

46. Bermuda decline

47. Note absence of roots

48. Take-all patch in bermuda

50. Take-all patch in St. Augustine

51. Fairy Rings 3 All grasses

52. Fairy ring fungus in lawn

54. Rhizoctonia blight in zoysia

57. Nigrosporia stolon rot