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Pesticides and Pest Control

Learn about the types of pesticides, characteristics of an ideal pesticide, cases for and against pesticide use, and the regulations and impact of Integrated Pest Management (IPM) in the United States.

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Pesticides and Pest Control

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  1. Pesticides and Pest Control By Brian Kaestner with thanks to Miller and Clements

  2. What is a pesticide? What are the different types of pesticides? • Broad-spectrum agents • Narrow-spectrum agents • Target species • Nontarget species

  3. In your groups come up with 3 characteristics of a ideal pesticide.

  4. Characteristics of an Ideal Pesticide? • Kill only target pests • Harm no other species • Break down quickly • Not cause genetic resistance • Be more cost-effective than doing nothing

  5. Add to your list…Present a case for using pesticides

  6. The Case for Pesticides • Save human lives • Increase supplies and lower cost of food • Work better and faster than alternatives • Health risks may be insignificant compared to benefits • Newer pesticides are becoming safer • New pesticides are used at lower rates

  7. Now come up with a list against pesticides

  8. The Case Against Pesticides • Genetic resistance • Can kill nontarget/natural control species • Can cause an increase in other pest species • pesticide treadmill • Pesticides do not stay • Bioaccumulation/biomagnification • Potential human health threats

  9. Pesticide Regulation in the United States ? • Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) 1947 • Food Quality Protection Act (FQPA) • 1996

  10. What is IPM ? • Ecological system approach • Reduce pest populations to economic threshold • Field monitoring of pest populations • Use of biological agents • Chemical pesticides are last resort

  11. Effects of IPM Original pest population Introduction biological control Economic threshold Pest density Equilibrium position Equilibrium position Reduced pest population Time

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