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JSS1: AGRICULTURAL SCIENCE - 3RD TERM

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  1. Methods of Weed Control I | Week 1
    7 Topics
  2. Methods of Weed Control II | Week 2
    6 Topics
    |
    2 Quizzes
  3. Crop Pests I | Week 3
    2 Topics
    |
    1 Quiz
  4. Crop Pests II | Week 4
    3 Topics
  5. Crop Pests III | Week 5
    2 Topics
    |
    1 Quiz
  6. Factors Of Agricultural Production I | Week 6
    3 Topics
  7. Factors Of Agricultural Production II | Week 7
    3 Topics
    |
    1 Quiz

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JSS1: AGRICULTURAL SCIENCE – 3RD TERM Crop Pests II | Week 4 Description of Nature of Damage done by Crop Pests
Lesson 4, Topic 1
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Description of Nature of Damage done by Crop Pests

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  • Description of Nature of Damage done by Crop Pests

The following are the damages caused by insect pests;

(i) Piercing and sucking insect pests attack the plant and pierce it, allowing the entry of disease organisms such as viruses.

(ii) Sap-sucking insect pests often introduce fungal disease to plants on which they feed. The most common sap-sucking insects are capsids e.g. cocoa bark sucker, the cotton stainer, aphids, mealybugs, scale insects, and whiteflies.

aphid2
Piercing and sucking insect pests – Aphid sucking sap

 

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