- published: 12 Jun 2015
- views: 11556
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, molluscs, birds, mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, spread disease or are vectors for disease. Although there are human benefits to the use of pesticides, some also have drawbacks, such as potential toxicity to humans and other animals. According to the Stockholm Convention on Persistent Organic Pollutants, 9 of the 12 most dangerous and persistent organic chemicals are pesticides. Pesticides are categorized into four main substituent chemicals: herbicides; fungicides; insecticides and bactericides.
Food and Agriculture Organization (FAO) has defined the term of pesticide as:
Rachel Louise Carson (May 27, 1907 – April 14, 1964) was an American marine biologist and conservationist whose book Silent Spring and other writings are credited with advancing the global environmental movement.
Carson began her career as a biologist in the U.S. Bureau of Fisheries, and became a full-time nature writer in the 1950s. Her widely praised 1951 bestseller The Sea Around Us won her a U.S. National Book Award, recognition as a gifted writer, and financial security. Her next book, The Edge of the Sea, and the reissued version of her first book, Under the Sea Wind, were also bestsellers. That so-called sea trilogy explores the whole of ocean life from the shores to the surface to the depths.
Late in the 1950s Carson turned her attention to conservation, especially environmental problems she believed were caused by synthetic pesticides. The result was Silent Spring (1962), which brought environmental concerns to an unprecedented share of the American people. Although Silent Spring met with fierce opposition by chemical companies, it spurred a reversal in national pesticide policy, which led to a nationwide ban on DDT and other pesticides, and it inspired a grassroots environmental movement that led to the creation of the U.S. Environmental Protection Agency. Carson was posthumously awarded the Presidential Medal of Freedom by Jimmy Carter.
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Make your own homemade, non-toxic pesticide
No where to run to
No where to hide
When chemicals
Get inside
The poison the profits
No where to run to
No where to hide
When they poison
the water supply
PPPPP Pesticide
I'm living downstream
Downstream from my own death
The poison the profits
Nowhere to run to
Nowhere to hide
I'm living downstream
Downstream from my own death
Pesticide