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Agriculture & pesticides

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[object Object]
Global food production ,[object Object]
Global food security ,[object Object],[object Object],[object Object]
Nutrition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The green revolution ,[object Object],[object Object],[object Object],[object Object]
The green revolution ,[object Object]
Green revolution: Environmental impacts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monocultures ,[object Object],[object Object],Wheat monoculture in Washington
Crop diversity ,[object Object],[object Object],[object Object]
Pesticides ,[object Object],[object Object],[object Object]
Chemical pesticides ,[object Object]
Herbicides ,[object Object]
Insecticides ,[object Object]
Rodenticides ,[object Object]
Fungicides ,[object Object]
Nematicides ,[object Object]
Algaecides ,[object Object]
Bactericides ,[object Object]
Piscicides ,[object Object]
Characteristics: ,[object Object],Hard/Persistent Pesticides DDT and many other chlorinated hydrocarbons. Examples:
Characteristics ,[object Object],Soft Pesticides soaps, oils, plant extracts, baking soda, and dish liquid. Examples:
[object Object]
Disease Control ,[object Object],[object Object]
Food Production ,[object Object],[object Object],[object Object]
Fiber Production ,[object Object],[object Object]
Efficiency When Compared to Alternatives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Development of Safer Pesticides ,[object Object],[object Object],[object Object],[object Object]
[object Object]
Impact on Non-target Organisms ,[object Object],[object Object],[object Object],[object Object]
Superbugs ,[object Object],[object Object],[object Object],[object Object]
Pests evolve resistance to pesticides ,[object Object],[object Object]
Pests evolve resistance to pesticides, continued ,[object Object],4. Survivors breed and produce pesticide-resistant population.
Pests evolve resistance to pesticides, continued 6. Has little effect. More-toxic chemicals must be developed. 5. Pesticide aplied again.
Persistence ,[object Object]
Bioaccumulation ,[object Object],[object Object],[object Object]
Formation of New Pests ,[object Object],[object Object],[object Object]
Food/Water Contamination ,[object Object]
Pesticide Poisoning ,[object Object],[object Object],[object Object]
National Cancer Institute ,[object Object],[object Object],[object Object]
Pollination ,[object Object],[object Object],[object Object],Honeybee pollinating apple blossom
Pollinator conservation ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Label Requirements
How Pesticides Function
LD-50 (Median Lethal Dose) ,[object Object],[object Object]
Nervous System ,[object Object],[object Object],[object Object]
Photosynthesis ,[object Object],[object Object]
Smothering ,[object Object],[object Object]
Dehydration ,[object Object]
Inhibition of Blood Clotting ,[object Object]
The ideal Pesticide and the Nightmare Insect Pest ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EPA ,[object Object],Pesticides and the Law
Research ,[object Object],[object Object],[object Object],[object Object]
Restrictions ,[object Object],[object Object]
FIFRA ,[object Object],[object Object],[object Object]
FFDCA ,[object Object],[object Object],[object Object]
FQPA ,[object Object],[object Object],[object Object]
[object Object],[object Object],Rachel Carson
Contributions ,[object Object],[object Object]
[object Object]
 
Alternatives to Pesticides
PROTECTING FOOD RESOURCES: PEST MANAGEMENT ,[object Object],Figure 13-27
Other Ways to Control Pests ,[object Object],Figure 13-31
Predators/Parasites ,[object Object]
Biological control ,[object Object],[object Object],[object Object],[object Object]
But biocontrol is risky ,[object Object],[object Object],[object Object]
Diseases ,[object Object]
Natural Repellants ,[object Object],                                                                                                                                         
Microbials ,[object Object],[object Object],[object Object]
Timing of Application ,[object Object]
Type of Crops ,[object Object]
Photodegradable Plastics ,[object Object]
Pheromones ,[object Object]
Sterilization ,[object Object],[object Object]
Genetic modification of food ,[object Object],[object Object]
[object Object],[object Object],Figure 13-32
Resistant Crops ,[object Object],[object Object],[object Object]
Prevalence of GM foods ,[object Object],[object Object]
Prevalence of GM foods ,[object Object],[object Object],[object Object],[object Object],[object Object]
Integrated pest management (IPM) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IPM successes ,[object Object]
Fig. 13-30, p. 299 What Can You Do? Reducing Exposure to Pesticides • Grow some of your food using organic methods. • Buy organic food. • Wash and scrub all fresh fruits, vegetables, and wild foods you pick. • Eat less or no meat. • Trim the fat from meat.

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Agriculture & pesticides

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  • 33. Pests evolve resistance to pesticides, continued 6. Has little effect. More-toxic chemicals must be developed. 5. Pesticide aplied again.
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  • 82. Fig. 13-30, p. 299 What Can You Do? Reducing Exposure to Pesticides • Grow some of your food using organic methods. • Buy organic food. • Wash and scrub all fresh fruits, vegetables, and wild foods you pick. • Eat less or no meat. • Trim the fat from meat.

Notes de l'éditeur

  1. Figure 13.30 Individuals matter: ways to reduce your exposure to pesticides. QUESTION: Which two of these actions do you think are the most important?