9 Ag Science: Prickly Pear

What was the initial purpose of introducing the prickly pear cactus into Australia?

• To create a new food source for wildlife

• To establish a natural barrier against invasive species

• To develop a cochineal industry for producing red dye

• To promote biodiversity conservation in the region

What was the outcome of the prickly pear invasion in Australia by 1920?

• Minimal impact on the environment and economy

• Significant ecological and socio-economic damage

• Enhanced biodiversity due to the cactus's presence

• Improved agricultural practices through cactus cultivation

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Who introduced the cactus to Australia?

• Governor Bourke of Botany Bay

• Governor Barlkley of Port Philip

• Governor Phillip of Port Jackson

• Governor Jackson of Port Phillip

When were prickly pears introduced to Australia? ____s

What is carminic acid used for?

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How did prickly pears spread in Australia?

What methods did Australia initially try to control the cactus? 3 words

When was the Commonwealth Prickly Pear Board formed?

What insects were brought back to Australia to control the cactus?

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How did Cactoblastis cactorum control the prickly pear population?

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