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← 2.3 Crop Pest and Disease Control

Ash and natural pesticides

Agriculture · Grade 8 · about 40 minutes

Cool sieved wood ash and simple plant mixes can deter some vegetable pests. They support handpicking; they are not shop chemical sprays.

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  • 8 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
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Other lessons in this sub-strand

  1. Why pests and diseases matter
  2. Punctured leaves
  3. Cut-off seedlings
  4. Curling leaves
  5. Where pests are found
  6. Wilting as a disease sign
  7. Spots and rotting
  8. Handpicking and removing plants
  9. Ash and natural pesticides
  10. Controlling diseases and why it matters