If you are exposing insect population to parathyroids over time they develop resistance
Explanation:
Use of pyrethroids overtime on insects will lead to developing resistance against the insecticide. Hence, the pyrethroids do not serve the purpose.
Insects develop a resistive mechanism against the chemical through the process of called mutations.
The mutation is defined as the change in the DNA sequence, here as a result of mutation, the newly formed DNA sequence would resist pyrethroids
Pyrethroids are the chemical compound build to serve the purpose of pyrethrins which is found the chrysanthemum flowers to help the flowers from insects.
