TOPIC: HARMFUL INSECTS FOUND ON THE FARM
A: TEACHING AND LEARNING MATERIALS
- Pictures of grasshoppers.
- Pictures of caterpillars.
- Pictures of weevils.
- Pictures of beetles.
- Crop pictures.
- Flashcards.
B: REFERENCE MATERIALS
- Scheme of work.
- Recommended Agric Sciences textbook for Primary 2.
- Online educational resources.
C: PREVIOUS KNOWLEDGE
The pupils can identify harmful insects found at home and state some of the problems they cause.
D: PERFORMANCE OBJECTIVES
By the end of the lesson, pupils should be able to:
- Identify harmful farm insects.
- Mention examples of harmful farm insects.
- State what grasshoppers and caterpillars may damage.
- Explain how weevils damage stored grains.
- Mention crops attacked by some harmful insects.
E: CONTENT
Meaning of Harmful Farm Insects
Harmful farm insects are insects that damage crops or stored farm produce.
Examples
Examples include:
- grasshopper 🦗
- caterpillar 🐛
- weevil
- beetle
- locust
Grasshopper
Grasshoppers may eat the leaves of crops.
Caterpillar
Caterpillars may feed on:
- leaves
- young shoots
- vegetables
Weevil
Weevils can damage stored grains such as:
- maize 🌽
- rice
- beans
They may make holes in the grains.
Beetles
Some beetles can damage leaves, stems, roots or stored produce.
Locust
Locusts can gather in large numbers and eat crop leaves.
F: LESSON PRESENTATION
F1: Teachers’ Activities
- Shows pictures of harmful farm insects.
- Names each insect.
- Explains the crops they may damage.
- Shows pictures of damaged crops.
- Asks pupils to identify the insects.
F2: Pupils’ Activities
- Identify harmful farm insects.
- Name them.
- State what they damage.
- Observe crop pictures.
- Answer questions.
G: CONCLUSION
The teacher revises harmful insects found on farms and explains that they may reduce the amount of food farmers harvest.
H: EVALUATION GUIDE
Pupils should be able to answer the following questions:
- What are harmful farm insects?
- Mention four harmful farm insects.
- What does a grasshopper eat?
- Which insect can damage stored grains?
- Mention two grains that weevils may damage.