Answer:
Pesticide kills all kinds of insects, including predatory insects, which in turn can increase the population of insects for which the pesticide was intended.
Step-by-step explanation:
Pesticides are the chemicals that kill both beneficial and harmful insects. These chemicals are used to kill the insects that harm the crops but they also kill the other predatory insects. The reduced population size of predatory insects results in increased population size of the insects for which the pesticide was used. So, pesticides have adverse effects on diversity of insect populations.