1001
Space
Earth
Nature
Evolution
Fossils and Prehistoric Life
Dinosaurs
Simple Animals
Insects and Spiders
Fish
Amphibians
Reptiles
Birds
Sea Mammals
Land Mammals
Plant Kingdom
How Plants Live
Unusual Plants
Conservation
Animal Behaviour
Pets and Farm Animals
History
Human World
Science and Technology
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Why are some insects called pests?
Some insects harm people or their livestock or crops. The Colorado beetle damages food crops. Tsetse flies transmit diseases to cattle. The death-watch beetle damages timber. Mosquitoes carry diseases such as malaria.
Related Image
A plague of locusts can devastate crops
 
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Book:
1001
Section:
Nature
Chapter:
Ecology