Pesticide defined

http://www.healthline.com/galecontent/pesticides-1?utm_term=pesticide&utm_medium=mw&utm_campaign=article
PESTICIDES
Pesticides are a broad class of chemicals and biological agents that are specifically designed and applied to kill a pest. Specific types of pesticides target specific types of pests: insecticides kill insects, fungicides kill fungi and bacteria, herbicides kill weeds and other unwanted plant vegetation, molluscacides kill mollusks, acaricides kill spiders, and so on. Pesticide use dates back to ancient times.
Pesticides are regulated in the United States at both the federal and state level. The primary legislation, one of the oldest environmental laws, is the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA, 1972), which is administered by the Environmental Protection Agency (EPA). Each state also has an agency responsible for carrying out FIFRA mandates. These agencies may be environmental or agricultural in nature, depending on the state. State laws can be more restrictive than the federal laws.
Pesticides are sometimes called "economic poisons." They are developed to kill something, and they are, therefore, inherently toxic. Pesticides that are less toxic are classified as "general use pesticides." These can be purchased by the average homeowner and applied without any special license or permits. More toxic compounds are called "restricted use pesticides" and their use requires a license. In some cases the restricted use materials have the same active ingredients as the general use materials, but at a higher concentration.
Anything that claims that it has pesticidal activity is, by law, a pesticide, and is subject to registration by the EPA and local state agencies. Household cleaners and bleach are legally pesticidesthe pesticide registration number can be found on the product container.
Within the broad classes of products that have similar types of action (e.g., weed killers, insect killers) there are further distinctions regarding the type of chemistry. For example, among insect killers, there are synthetic pyrethroids, organophosphates, and organochlorines. The most well known are the organochlorines, such as chlordane and DDT, which became popular after World War II, and were used in agriculture, and for home and commercial use, for decades. These compounds have low acute toxicity, but are persistent in the environment and have caused a series of long-term environmental health problems. They remain in soil and tissue for a very long time, and they have been shown to have a harmful impact on animal endocrine systems. Most organochlorines were phased out of use in the 1980s. They were replaced by organophosphate materials that are less persistent, but more acutely toxic. In the beginning of the 1990s these compounds, too, were beginning to be phased out through government actions, and voluntarily by the manufacturers.
Pesticides have entered the food system in many parts of the world. Though credited with an enormous increase in food and fiber production, indiscriminate use of these products has led to acute and long-term health problems for humans and animals. There are risks associated with the application of a pesticide into a system, while at the same time there are benefits for using these materials to reduce disease, increased food production, and lessen the risk of starvation.
Pesticides have been applied in many part of the world to control vector-borne diseases such as malaria, yellow fever, dengue, and others. The most prudent way to balance the benefits with the risks is an integrated approach to pesticide use, combining all control methodsphysical, biological, cultural, and chemical.
MARK G. ROBSON
(SEE ALSO: Environmental Movement; Environmental Protection Agency; Fungicides; Toxicology)
BIBLIOGRAPHY
Hayes, W., and Laws, E. (1991). Handbook of Pesticide Toxicology, Vol. 1. San Diego, CA: Academic Press.
Wallace, R., ed. (1998). Maxcy-Rosenau-Last Public Health and Preventive Medicine. Stamford, CT: Appleton and Lange.
         OR:
http://dictionary.reference.com/browse/pesticide
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Jangchub wrote:

http://www.healthline.com/galecontent/pesticides-1?utm_term=pesticide&utm_medium=mw&utm_campaign=article
There is actually more to what a pesticide is. The EPA definition is "A pesticide is any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest."
"Off" mosquito repellent is a pesticide. Pheromones used as an attractant for insect traps are also classified as a pesticide. More common sense is being used by the state officials though, but used to, if a customer had ants gathering on a hummingbird feeder and I applied vasaline to the support line to keep the ants off I had to list the vasaline as pesticide.
Lar
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anything based in facts:-( The last time I looked, the suffix -cide relates to killing, not just bumming-out some little critter.
- Bill
Coloribus gustibus non disputatum (mostly)
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William Rose wrote:

As long as the letters p*e*s*t*i is in front of the suffix "cide" about the only definition that really matters is the EPAs and they say bumming out the critters counts along with the killing. They been saying that since the 70's, a bit before Bush could of ever hoped to be thought of as having a kingdom :)
Lar
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The Bushie's Kingdom goes WAY back before the 70s. Way, way, way back. And not a one of them is from Texas, but the monkey tree in the oval has what Mollie Ivans (Rest in Peace) called; Bushisms. I call it dumb Texasism.
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It's "Through the Looking Glass" mentality, when a word isn't what it says it means but what you say it mean. You know, Clean Air,No Child left behind, Energy Task Force, War on Terror, Federal Emergency Management Agency, that kind of stuff.
Regardless of what you thought about him, Lenny Bruce had a very cogent observation when he said,"The only time I get into trouble with the law is when I use common sense". I'm sure the EPA was what Christie Whitman said it was and not what food eating, air breathing, water drinking, over worked American citizens wanted it to be.
Molly may be resting now but her spirit is still taking care of bidness. - Bill Coloribus gustibus non disputatum
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wrote:

Goodbye, Mollie - we will miss the hell out of you. Best proof that there is no God: Mollie is taken and Rove abides.
<slate.com> has a regular feature by Jacob Weisberg called "Bushismsof the Day (or Week).
Here's a sample:
+++++++++++++++++++++++++++++++++++++
"I'm a strong proponent of the restoration of the wetlands, for a lot of reasons. There's a practical reason, though, when it comes to hurricanes: The stronger the wetlands, the more likely the damage of the hurricane."Discussing post-Katrina wetland improvements, New Orleans, March 1, 2007
+++++++++++++++++++++++++++++++++++++++

And there's also "Healthy Forests"! Clear-cutting; building roads at taxpayer expense for logging companies...the usual.
Incidentally, some might not know that he stole "No Child Left Behind" from Marion Wright Edelman's *legitimate* group of the same name.

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On Sun, 25 Mar 2007 18:26:17 -0700, Persephone wrote:

When Air America came on the air here in Austin, TX, my husband and I went to the Paramount Theater to be present for the first show and they had Mollie as a guest. She looked very frail and her hair was patchy so I suspected her cancer returned.
It's a total loss to the flavor of Austin. She will be missed by many.
As for Bushie, he and his regime have destroyed this country in ways we will suffer for hundreds of years. People are still in trailers in NOLA and there are still cars in trees while he spends almost TWO TRILLION dollars on a war which was a big lie. Thanks bushie poo.
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Pesticides http://home.ccil.org/~treeman/spring.html
--
Sincerely,
John A. Keslick, Jr.
  Click to see the full signature.
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