Identifying Disease

Biology: AQA GCSE Higher, topic 3.3.4

Identifying Plant Disease

There are three methods you can use to identify a plant’s disease. These are:

Gardening manual

Gardening manual

  • Refer to a gardening manual or website.
Laboratory

Laboratory

  • Take an infected plant to a laboratory to identify the pathogen.
Testing kit

Testing kit

  • Use testing kits that contain monoclonal antibodies.

Test yourself on Identifying Disease

  • What is the purpose of taking an infected plant to a laboratory?

  • A gardener notices signs of disease on their plant and wants to identify the exact pathogen responsible. Which method should they use?

  • What term describes stems or leaves that have grown into an abnormal shape, as a sign of plant disease?

  • A gardener notices small insects covering the underside of a plant's leaves, while the stems and leaf colour remain completely normal. What sign of plant disease does this describe?

  • A gardener wants to quickly test their plant for a specific pathogen without sending it away to a laboratory. Which method should they use?

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