Lesson on Damages Caused By Harmful Insects for Primary 2

Hello, young learners! Welcome back to Primary 2 Pre-Vocational Studies, Agricultural Science. In our previous lesson, we learned about Examples Of Harmful Insects. Today, we’re going to learn about the damages caused by these harmful insects.

Objectives

By the end of this lesson, you should be able to:

List at least three damages caused by harmful insects to humans, animals, and plants. Appreciate the importance of controlling harmful insects. Discuss with peers the impact of harmful insects in their community.

Damages Caused By Harmful Insects

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Harmful insects can cause a lot of problems for humans, animals, and plants. They can harm us in different ways.

What are the Damages Caused by Harmful Insects?

Harmful insects can cause damage to humans, animals, and plants. Some of these damages include:

To Humans: Insects like mosquitoes can spread diseases such as malaria. Bedbugs cause itchy bites that can lead to skin infections. Some insects can cause allergic reactions in humans. Some insects can contaminate food and water, leading to food poisoning. To Animals: Ticks attach to animals and suck their blood, causing weakness and disease. Fleas can make animals itch and spread other diseases. Some insects can damage animal crops, leading to food shortages. To Plants: Locusts eat large amounts of crops, destroying food supplies. Aphids suck the sap from plants, making them weak and stunted. Caterpillars can eat the leaves of plants, reducing their ability to grow.

• Some insects can spread plant diseases, leading to crop failure.

Evaluation Questions

Now that you’ve learned about the damages caused by harmful insects, let’s see if you can answer these questions:

1. Name one disease caused by mosquitoes.
2. Describe how ticks affect animals.
3. List two ways insects can damage plants.
4. Discuss in pairs why it’s important to control harmful insects.

Conclusions or Summary

We’ve learned that harmful insects can cause a lot of damage to humans, animals, and plants. It’s important to control these insects to protect ourselves and our environment. Don’t forget to check the comments section if you have any questions, and use the navigation to move to the next lesson. See you in the next lesson!