1. SECTION 10.2:
PESTICIDE
BENEFITS
Robin H, Aditya G, Daniel M

2. OVERVIEW
 Humans compete with other species
 Pesticides are important for our survival

3. INSECT-BORNE DISEASES

4. INSECT BORNE DISEASE
 Insects transmit many diseases and pathogens
 Malaria
 Caused by Plasmodium protozoa
 Spread by Anopheles
 DDT was used to stop
the spread of the
disease

5. INSECT BORNE DISEASES
 Encephalitis
 Vector: mosquitoes
 Trypanosomiasis
 Vector: tsetse fly
 Onchocerciasis and filariasis (elephentiasis)
 Vector: tiny worms

6. ENCEPHALITIS
 Acute inflammation of the
brain
 headache, fever, confusion,
drowsiness, and fatigue

7. TRYPANOSOMIASIS
 “sleeping sickness”
 Causes 21,000 deaths per
year

8. ELEPHENTIASIS
 thickening of the skin and
underlying tissues, especially
in the legs and male genitals
 Worst affected area is
Ethiopia

9. A CHOICE FOR YOU
 Would you rather…
 Go blind at 30 years of age from tiny worms accumulating in your eyeballs
 Die because of a small chance of cancer due to pesticide exposure at age 50
or 60?

10. PESTICIDES PROTECT CROPS
 Pesticides protect 1/3 of our world crops
 Postharvest losses would destroy a further 20 to 30 percent.
 Food production would not match world demand if pesticide
usage stopped

11. Pesticide Usage
Conventional Pesticide
Other Pesticide
Chemicals
Wood preservatives
Specialty Biocides
Chlorine/hypochlorites

12. ECONOMIC EFFECTS
 Farmers save $3-5 for every $1 spent on pesticides
 Bugs can also reduce the economic value of crops
 Herbicides increase crop yields, reduce soil erosion, and reduce
the need for labor