Questão | Responda |
What is a pest? | An organism that is deemed to be interfering with human purpose. |
What are some Characteristics of Pests? | Competing with crop species. Competing with humans. Source of Disease. Causes of damage to housing and materials. |
What is a weed? | A plant that is judged as a pest. |
What are some "icides"? | Pesticides Fungicides Herbicides Insecticides |
What is the scientific name for genetically modified corn? | Bacillus Thuringiensis |
What are some benefits of pesticides? | Sanitation and health Agriculture Forestry |
What are some risks of use? | All pesticides are potentially toxic. - from dose received - ecological importance of any affected species. |
What chemicals include OrganoChlorines? | Insecticide: DDT, Dieldrin Industrial Chemicals: PCB's Trace contaminants: Dioxins |
What are some properties of Pesticides? | Persistaence: resist degradation Highly soluble in fats Because of these pesticides biomagnify and is bioconcentrated. |
What's the long name for DDT? | para-dicholodiphenyltrichloroethane |
Why did pesticides become banned? | Bioaccumulates Transports long distances There was a decline in eagle and songbird populations |
Who is Rachel Carson? | The "Mother" of Environmental Science, author of Silent Spring about pesticide effects |
What are some health problems of using pesticides? | WHO estimates 25 million people suffer pesticides poisoning, and 20000 die each year. At least 2/3 from occupational hazards. |
What are some alternatives for using pesticides? | Behavioral Changes- crop rotation, flooding fields, adjusting plant times Biological controls- Predatory/Herbivorous insects, Genetics and Bioengineering |
What is IPM? | Integrated Pest Managment - Use of a coordnated suit of tactics to reduce pest abundance. |
What are some examples of Integrated Pest Management? | Monitoring pest abundance. Biological controls. Manipulation of habitat. (Much preferable to routine pesticide use) |
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