Asked by mary22

After spraying crops with DDT for several years, farmers found that populations of insect pests reboundED. One reason was that insects had developed resistance to the insecticide. Suggest another reason, based on what you know about populations, pyramids, predators, and competitors.

HELP!

DDT= pesticide.

I'm extremely confused.
Answered by Ms. Sue
Did DDT also kill off some of the insects' predators?
Answered by mary22
My book doesn't specify.
But I would say yes...
Answered by Ms. Sue
Right!
Answered by mary22
Thank You.
Answered by harrib
no it didn't