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GCSE Biology · key term
A chemical used to kill or control organisms that damage crops or compete with them.
Used by OCR
Specification B6.2b, B6.2f · Paper 2 (Foundation), Paper 4 (Higher)
Revise: Agricultural solutionsPesticides are chemicals used to kill or control such organisms. Particular types include insecticides, which target insects, and herbicides, which target weeds.
A substance used to kill a pest; pesticides include insecticides and herbicides.
Distinguish fertilisers from pesticides: fertilisers supply mineral ions for growth, whereas pesticides reduce crop damage by pests.
Gene technology does not automatically increase pesticide use. Its effect depends on the characteristic introduced into the organism.
Do not claim that genetic engineering always increases pesticide use. An insect-resistant crop may reduce insecticide use, whereas a herbicide-tolerant crop is designed to survive a particular herbicide.
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