muhammad hunain
TRANSCRIPT
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MUHAMMAD HUNAIN
STUDY IN VII
PRESENTATIONABOUT PESTICIDES
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CONTENTS
• INTRODUCTION• PESTICIDES AND TYPES• EFFECT OF PESTICIDES• ABOUTS PESTS• INTRODUCTION TO DDT
AND ITS HISTORY
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What are Pesticides?
• Pesticides are poisons used to kill pests. • We use pesticides to kill off pests
that hurt us, animals or plants. • Farmers first used them to kill bugs
and weeds because they have big fields.
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TYPES OF Pesticides Insecticides- Chemical substances used
to kill insects Herbicides- Chemical substances used
to kill weeds Fungicides- Chemical substances used
to kill fungus Rodenticides- Chemical substances
used to kill Rodents
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WHAT ARE PESTS
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About DDT DDT was invented in 1939 by Paul Muller, and soon
after began using DDT as a pesticide and malaria controller
Rachel Carlson published a book, Silent Spring, in 1959 and it outlined the severe issues with DDT use in ecosystems
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pesticidesUse of pesticiddes Use of pesticides
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Effect on marine life and other animals
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• Posses an unreasonable risk to humans or the environment.
• Has a common active ingredient with others that are toxic.
• Has high exposure risk- one time or multiple times.
EPA (Environmental Protection Agency)has banned
pesticide
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