Why Have Pesticide Producers Failed to Produce New Mosquito-Killing Insecticides

Multiple Choice

Why have pesticide producers failed to produce new mosquito-killing insecticides in recent years?

A) Existing pesticides are sufficient to fully control malaria.
B) Resistance to pesticides is not a concern, so new pesticides are not needed.
C) Vaccination efforts have been so effective that there is no need for insecticides to kill mosquitoes.
D) Treatment for malaria is now so effective that it is only a minor illness even in developing parts of the world.
E) It is much more expensive to develop and market new pesticides than the producers would make in sales of the pesticides in the United States.