Did You Know that Plants Get Sick Too?

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

2. Basic Definitions • 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

3. Human Host • Flu • HIV/AIDS • Cold • Meningitis • Mosquito/Tick • Athletes Foot • Tuberculosis • E. coli

4. Plant Host • Downey Mildew • Powdery Mildew • Rusts • TMV • Canker • Bacterial spot • Insects • Larger Animals

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

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. Tree canker TMV Bacterial leaf spot

8. Lightning ? Aliens ? ? Hail Damage

9. Thank You!