The Chemical Pest Control

1300 Words3 Pages

The Chemical Pest Control

A pest is usually seen as an organism potentially hazardous to health

and is in competition with humans for space food or soil. Pesticides

are any chemical or biological agent that kills plant or animal pests;

herbicides, insecticides, fungicides, rodenticides, etc. are all

pesticides.

There are various types of chemical pesticides available such as

contact pesticides which are sprayed directly onto the crop,

systematic pesticides, which are sprayed on the crop but absorbed by

the leaves and transported through the plant, and residual pesticides

which are sprayed on the soil before the crop is planted.

An ideal pesticide should:

- Be specific-toxic only to the targeted organism

- Not persist- but be unstable enough to break down into harmless

substances and;

- Not pass accumulate along the food chain

I will now, using examples, assess the advantages and disadvantages of

using chemical pest control, then come to a conclusion.

Pesticides have been used for some time, and have been used in large

amounts in most parts of the world to try and control human diseases

however it has been debated whether or not they’re seen as ‘good’.

There are a number of major pesticides used throughout the world one

of which is Mercuric Chloride or more formerly known as Calomel. It is

of a white, grey or yellow colour and although previously used in

medicine as a laxative, Calomel is no longer used in medicine because

of the toxic risks of mercury poisoning, and is also banned in the

European Union.

It is liable to liberate hydrochloric acid under certain conditions;

however, since it contain...

... middle of paper ...

...jan.ucc.nau.edu/doetqp/courses/env440/lectures/lec25/lec25.html

2)

http://www.inchem.org/documents/jmpr/jmpmono/v00pr03.htm

3)

http://www.checnet.org/healthehouse/education/articles-detail.asp?Main_ID=134

4)

http://www.landsteward.org/page.cfm/8251

5)

http://mineral.galleries.com/minerals/halides/calomel/calomel.htm

6)

http://turf.lib.msu.edu/1940s/1940/4006.pdf

7)

http://www.copper.org/applications/compounds/copper_sulfate02.html

8)

http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7481.html

9)

http://www.checnet.org/healthehouse/education/articles-health.asp

10)

http://www.grinningplanet.com/2004/07-01/children-effects-of-pesticides-article.htm

Encyclopaedias

1)

The Encyclopaedia Britannica

2)

Wikipedia Encyclopaedia (various articles)

More about The Chemical Pest Control

Open Document