what are pests? how are crops protected from pests?
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A pest is any animal or plant which has a harmful effect on humans, their food or their living conditions. Pests include animals which: carry disease-causing micro-organisms and parasites, for example, mosquitoes which carry Ross River virus and Murray Valley encephaliti.
Crops can be protected by using pesticides to kill the pests
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PESTS ARE ORGANISMS THAT ATTACK AND DAMAGE CROPS.CROPS ARE ALSO ATTACKED BY BACTERIA,FUNGI AND VIRUSES. ALL THESE DISEASES ARE TRANSMITTED THROUGH SEEDS, AIR, SOIL AND INSECTS
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