1. Did You Know that Plants Get Sick Too? Jon Daniels Oklahoma State University, Entomology & Plant Pathology

2.  Pathology  Study and diagnosis of disease  Plant Pathologist  Someone who studies & diagnosis diseases of plants  Disease  An abnormal (unhealthy) condition that triggers an response from a plant or human (symptoms)  Pathogen  Any organism that causes disease Basic Definitions

3. Human Host 1. Flu 2. HIV/AIDS 3. Cold 4. Meningitis 5. Mosquito/Tick 6. Athletes Foot 7. Tuberculosis 8. E. coli

4. Plant Host 1. Downey Mildew 2. Powdery Mildew 3. Rusts 4. TMV 5. Canker 6. Bacterial spot 7. Insects 8. Larger Animals

5. What Is Needed For Disease To Occur? Susceptible Host Conducive Environment Virulent Pathogen Disease Must have all 3

6. The Irresistible Plant  Plants are a rich source of nutrients  Bacteria  Fungi  Protists  Insects  Vertebrates  Plants lack an immune system comparable to humans  No vaccines  No antibiotics  Fungal treatments – very expensive

7. Bacterial leaf spot Tree canker TMV

8. ? Lightning ?Hail Damage ?Aliens

9. Thank You!