GCSE Biology (AQA)
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Infection and Response
Plant Disease
Detecting Plant Diseases
2:32
Plant Disease Issues
Spec
4.3.3.1
- Gardeners and farmers need to quickly identify diseased plants to act swiftly and prevent spread.
- Delayed response can exacerbate problems with the plant and disease spread.
- Regular observation of plants is crucial for early detection of disease.
- Signs of a diseased plant include:
- Stunted growth due to impaired photosynthesis.
- Spots or discoloration on leaves.
- Parts of the plant dying or decaying, also known as rot.
- Unusual growths on the plant, such as malformed stems or leaves.
- Presence of pests like aphids, caterpillars, or whiteflies, which can damage plants.
- Understanding these signs helps in better management and treatment of plant diseases.
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