Insecticides. Chemicals that are used to kill that are pests. 1st Generation. mixtures containing. - lethal to both bugs AND humans. e.g.. tropical legume. tobacco. African chrysanthemum. Plants are a “natural” place to look for insecticides because they. spines.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Chemicals that are used
to kill that are pests.
- lethal to both bugs AND humans
Plants are a “natural” place to look for insecticides because they
Natural does NOT always mean
Characteristics of DDT:
DDT changed world history by:
among the Allied soldiers
invading Italy during WWII
won the Prize in Chemistry
for the synthesis of DDT.
What Went Wrong?
DDT was banned in Canada in & in the U.S.in 1972, but it is
still being used in some countries (e.g.- ).
To cope with these problems, which it had itself created, the
World Health Organization was obliged to parachute into Borneo.
Characteristics of Modern Insecticides
Therefore, they CAN’T
Problems with Pesticides
, not just pests.
Doctors are usually cautious about prescribing
for the same reason. (i.e.- Some disease-causing bacteria have become resistant to all known .)
2,4 - D has been linked
the action of the female sex hormone & may be
causing in adolescents.
The province of Ontario banned the use of
(pesticides that non-essential or used to improve the appearance
of lawns, gardens, & trees) in .
There are exceptions for agriculture, forestry, the promotion of
public health or safety (e.g.- to control plants that are poisonous
to the touch, such as ; insects that bite, sting, are venomous or are disease carrying, like mosquitoes; and animals, insects or plants that may cause damage to a structure or infrastructure, such as ), and .
The is one of North America's most devastating forest pests.
Both Toronto & Mississsauga have carried out
to control this pest.
Technically, the law says
you can use
or for poison
ivy, but NOT for
What are Some of the Alternatives to Cosmetic Pesticides?
Native plants are adapted to the conditions here. They are &
than introduced species. Put away those pesticide & fertilizer bottles & turn off the sprinkler!
Food produced without: antibiotics;
growth hormones; most conventional ;
petroleum- based or sewage sludge-based
; bioengineering; or ionizing radiation.