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CH 20 PESTICIDES and PEST CONTROL. 1 st Generation Pesticides- 2 nd Generation Pesticides- 20-3 Problems w/ Pesticides 1. 2. 3.4 only 2-.1% reach crop.

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Presentation on theme: "CH 20 PESTICIDES and PEST CONTROL. 1 st Generation Pesticides- 2 nd Generation Pesticides- 20-3 Problems w/ Pesticides 1. 2. 3.4 only 2-.1% reach crop."— Presentation transcript:

1 CH 20 PESTICIDES and PEST CONTROL

2 1 st Generation Pesticides- 2 nd Generation Pesticides Problems w/ Pesticides only 2-.1% reach crop active indgredients approved for US are suspected human carcinogens

3 20-4 Pesticide Regulation FIFRA 1947, 1972: 1. EPA required to 2. companies & EPA sets tolerance level-________ 20-5 Economic threshold- point where pest density reaches __________

4

5 Pros/Cons of other methods 1.Genetic Engineering-______2. Introduce Pests-___ 3. Change cultivation practices – polyculture,rotating, 4. sex attractants 5. insect sterilization

6 What is IPM ____________-cultivation, biological,and chemical methods applied at certain times! Advantages: slow genetic resistance, reduce water/fertilizer/pesticides, increase yields, safer! Disadv: How could the US increase IPM management w/ farmers?

7 What is circle of poison?


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