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Broad-Spectrum Pesticides- pesticides that kill a variety
of organisms, including some that are beneficial, in addition to the target pest.
Narrow-Spectrum Pesticides-pesticides that only kill
the organism for which it was intended to and not any other organisms.
- Narrow-spectrum pesticides are more ideal than broad-spectrum pesticides because non-target
species would not be harmed.
- However, most pesticides are broad-spectrum pesticides.
Examples of Broad-Spectrum Pesticides:
Oxamyl- a broad-spectrum pesticide
used against insects, mites, ticks, and roundworms. It is applied either directly on plants or on the surface of the soil.
Oxmyl is used for crops, vegetables, fruits, and ornamental plants.
Carbaryl- first introduced in 1956,
it was the first carbamate to be successful in the insecticide industry. Currently it is the most used pesticide in the world.
It is mostly used on the lawn and garden. It is used for fruit, vegetables, cotton, and other crops.
Terbacil- an herbicide used
to control weeds and perennial grasses in sugarcane, apples, alfalfa, peaches, mints, and pecans. It works by interfering
with the plants ability to perform photosynthesis. Terbacil is applied to the soil.
Examples of Narrow-Spectrum Pesticides:
Chitin Inhibitors- a type of chemical that inhibits the molting
process of insects. It stops the function of chitin synthetase, an enzyme needed to make a new exoskeleton.
Juvenile Hormone
Analogues- chemicals that inhibit developmental changes of insects.
Work
Citied:
http://www.cals.ncsu.edu/course/ent425/text19/semiochem.html
http://hortipm.tamu.edu/ipmguide/ento/chapters/pestmgmt.html
micro.magnet.fsu.edu
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