Identifying Plant Diseases Flashcards
What are the main symptoms of plant disease?
- Discolouration
- Soft rot
- Dehydration
- Tumor
- Wilting
- Mildew
- Stunted growth
- Shape change
- Spots
- Galls
- Mold
- Lesions
- Cankers
- Exudate
What are the symptoms of strawberry mottle disease?
Viral disease causes leaves of strawberry plant to become discoloured
What are the symptoms of bacterial soft rot?
cabbage can be infected by Erwinia Carotovora which causes rotting
What are the symptoms of powdery mildew?
Fungal disease leaves a white, powdery deposit on the plant
How can plant disease be detected on the field?
- Observation
- Microscopy
How can microscopes be used to identify bacteria?
different bacteria can be identified by their shape
When can plant diseases on the field be identified?
once an infection has taken hold and symptoms have become apparent
What are the techniques used to identify plant disease in the lab?
- DNA analysis
- Identification of antigens
When can a plant disease be detected in a laboratory?
it can potentially be detected before it causes significant damage to the crop
