Presentation on theme: "Pesticides. Pests Any organism that: 1.competes with us for food 2.Invades lawns and gardens 3.Destroys wood in houses 4.Spreads disease 5.A nuisance."— Presentation transcript:
Pests Any organism that: 1.competes with us for food 2.Invades lawns and gardens 3.Destroys wood in houses 4.Spreads disease 5.A nuisance
Pesticide Regulation Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), All pesticide use must be approved 1 st by the EPA. Pesticide makers must test for toxicity.
Integrated Pest Management Using a combo of pest control strategies: chemicals and alternatives. +
Alternatives to Pesticides 1) Introduce natural predators of bug: ex: ladybug and aphid 2) Put up smells that attract bugs away from crops (pheromones) 3) Spray boiling H 2 O Chrysanthemums
Alternatives 4) Genetically modify plants to be resistant to pests (GMO’s) Frost-Resistant Strawberries (from fish gene)? Broccoflower Tangelo: grapefruit and tangerine
Case Study: BT Insecticide Gene BT = protein found in natural soil bacteria, Bacillus thuringensis. Disrupts guts of insects Not toxic to humans or animals BT gene placed in corn to protect against corn borer.
BT gene placed in corn to protect against corn borer
Tangelo = Tang. And Grapefruit
Advantages of GMO’s Less pesticides are used Higher nutritional content Possible vaccine delivery Less water used (on irrigation) Less inorganic fertilizers are used Enough food to feed the world!
Disadvantages of GMO’s Cross pollination with wild species reduces biodiversity Emergence of superbugs Fear of unknown allergens Centralized control of food production Poor farmers can’t afford GM patented seeds