[StACase]

Insects don't "develop" a resistance to DDT.

From Wikipedia:

Mosquito resistance against DDT

In some areas DDT has lost much of its effectiveness, especially in areas such as India where outdoor transmission is the predominant form. According to V.P. Sharma, "The declining effectiveness of DDT is a result of several factors which frequently operate in tandem. The first and the most important factor is vector resistance to DDT. All populations of the main vector, An. culicifacies have become resistant to DDT.

[Balding_Eagle]

DDT is a political chemical.

For all we know, you posted something put in there by Al GOre. I wouldn't believe Wikipedia about it if my life depended on it.

Come to think of it, millions of lives do.

[Rembrandt]

"Mosquito resistance against DDT

In some areas DDT has lost much of its effectiveness, especially in areas such as India where outdoor transmission is the predominant form. According to V.P. Sharma, "The declining effectiveness of DDT is a result of several factors which frequently operate in tandem. The first and the most important factor is vector resistance to DDT. All populations of the main vector, An. culicifacies have become resistant to DDT."
~~~
Wikipedia is highly controversial and highly suspect because for a long time, anyone, like YOU for example, could edit each and every entry thereby inserting their own biases and disinformation. Of course, I'm sure you wouldn't insert disinformation, now would you?