A woodland restoration group grows young trees of the same species at three sites. The causes of disease signs in 100 trees at each site were identified.
| Site | Pathogen P | Pathogen Q | Magnesium deficiency |
|---|---|---|---|
| North wood | 64 | 21 | 15 |
| Valley wood | 18 | 67 | 15 |
| Heath wood | 12 | 16 | 72 |
The group proposes using monoclonal antibody testing kits for pathogen P at all three sites and no longer using any other method to identify the cause of disease signs.
Evaluate the group's proposal. Use information from the table and your knowledge of plant disease.
133 exam-style questions on AQA GCSE Biology 3.3 Plant disease, covering 3.3.1 Detection and identification of plant diseases and 3.3.2 Plant defence responses. Each one has a worked solution and a mark scheme showing where the marks go.