Summary

• Description:

  The PDF document comprises Form 3 Agriculture notes on the topic of Crop Pests and Diseases.

  The topics and sub-topics covered in the document include:

  • Crop Pests
    • A pest is defined as a living organism that destroys crops or trees, either directly or indirectly by introducing pathogens.
    • Pests are classified based on their mode of feeding (biting and chewing vs. piercing and sucking) and whether they attack crops in the field or in storage.
    • A detailed table identifies common pests such as armyworms, stalk borers, aphids, and cutworms, listing the crops they attack, the damage they cause, and the recommended control measures.
    • General methods for controlling crop pests are outlined, including cultural methods (e.g., crop rotation, early planting), mechanical methods (e.g., hand picking), biological control, and the use of chemicals (pesticides).
  • Crop Diseases
    • A disease is defined as any deviation from the normal state of health of a plant.
    • Diseases are caused by pathogens, which are classified as fungi, bacteria, or viruses.
    • Fungal Diseases: The notes describe common fungal diseases like Late Blight (affecting tomatoes and potatoes), Rusts, and Smuts, detailing their symptoms and control methods.
    • Bacterial Diseases: Examples such as Black Rot (on cabbages) and Bacterial Wilt are discussed, along with their symptoms and control.
    • Viral Diseases: The document provides information on common viral diseases like Mosaic disease and Tristeza (in citrus), including their symptoms and how they can be controlled, often by managing the insect vectors that transmit them.
    • Other Causes of Disease: Non-pathogenic causes like flooding, chemical toxicities, and stress from irregular watering are also mentioned.
    • General methods for controlling crop diseases are summarized, including cultural methods (e.g., using healthy planting materials), legislative methods (quarantine), and chemical control (fungicides).

  These notes are comprehensive, neat, and printable, making them an excellent resource for students studying the identification and management of crop pests and diseases. They are also highly suitable for teachers to use for lesson preparation, providing a structured and clear guide to the topic.

• File Size:

  372.79 KB
• Length:

  9 pages
• Category:

  Lesson Notes
• Level:

  Form 3
• Subject:

  AGRICULTURE
• Posted By:

  Caleb_Peter

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