Pesticides

Descrição

FlashCards sobre Pesticides, criado por 19eh94 em 05-12-2013.
19eh94
FlashCards por 19eh94, atualizado more than 1 year ago
19eh94
Criado por 19eh94 quase 11 anos atrás
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Resumo de Recurso

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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