Controlling pests

Focus

This activity provides opportunities for students to develop an understanding of the various ways in which agricultural pests are controlled in Queensland. It allows students to consider specific examples of the various methods that have been used and to consider the costs and benefits of each method.

The methods used include chemical control, biological control, physical control and genetic control (heritability and genetic engineering).

Science

Science and Society

6.2 Students use scientific concepts to evaluate the costs and benefits of applications of science (including agricultural and industrial practices).

Materials

The Biosecurity Queensland pages of the Department of Employment, Economic Development and Innovation (DEEDI) provide information on:

• Pest animals by common name 
• Weeds by common name 
• Invasive plant and animal science 

Internet search on articles referring to selected pest animals or weeds.

Teaching considerations

This activity is intended to highlight the costs and benefits of various pest control methods. It would be beneficial to use examples that are specific to the area in which students live. Further information on the control methods used to combat different types of pests may be obtained via collaborators listed on the DEEDI website.

Working scientifically

Time: 30 minutes

• Accessing resources
• Collecting information
• Looking for alternatives

Students read through collected articles dealing with pest and weed control issues from the DEEDI website, research collaborators and internert searches.

Students classify the types of control methods being used as: chemical; physical; biological; or genetic. Students then discuss the costs and benefits of the various control methods they come across in their research.

Finally, students discuss any control methods being used in their area and make suggestions as to possible alternatives that allow for more sustainable use of resources.

Concept maps are another useful way of summarising understanding of issues and information from research activities such as this.

Gathering information about student learning

Sources of information could include:

• anecdotal records of student discussions
• concept maps.

Last updated 2 September 2010

Land management

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