DDT was known to be a highly effective insecticide in the past Still mosquitoes persist and act as vectors for - Biology - Strategies for Enhancement in Food Production

Question

DDT was known to be a highly effective insecticide in the past
Still mosquitoes persist and act as vectors for several diseases
Why did DDT not wipe out all mosquitoes populations

Riya Gupta · Accepted Answer

Dear student, when we use certain chemicals in excessive amount,
the insects gradually develop resistance against that chemical and
stop reacting against the chemical Hence DDT is no longer effective
in killing insects Thanks and regards

DDT was known to be a highly effective insecticide in the past.Still mosquitoes persist and act as vectors for several diseases.Why did DDT not wipe out all mosquitoes populations