What are the characteristics of the "Perfect Pesticide"?
What is:
1) Narrow spectrum
2) Readily break down into safe materials
3) Would stay where it is put (not move)
100
What are the characteristics of Organophosphates?
They are very toxic to birds, bees, aquatic organisms, and humans; but they break down faster than chlorinated hydrocarbons.
200
Why are inorganic pesticides not used much anymore?
Because lead, mercury, and arsenic do not readily break down; so they accumulate and present a threat to various organisms over a long time.
200
What are the characteristics of Carbomates?
Broad spectrum, not as toxic to mammals as organophosphates.
300
These pesticides are derived from plants. What are they called and what sort of chemical compounds are they made of?
What are Botanicals; they are made of organics compounds
300
The two main types of selective herbicides.
What are Broad-leaf and Grass herbicides.
400
What are the three types of "Second Generation" insecticides?
What are Chlorinated Hydrocarbons, Organophosphates, and Caromates?
400
Several problems of pesticides are:
1) Pests evolve and develop a resistance to pesticides.
2) Non-target species are affected.
3) Persistence allows the pesticides to move and impact more organisms over a long time.
500
The characteristics of Chlorinated Hydrocarbons include: