Though the insects aren't native to the Americas, she points out, they've been here since Europeans first arrived.

FORBES: Magazine Article

First, don't order exotic plants from tropical places, where insects like to burrow.

WSJ: Can Insects Come in the Mail?

Experts aren't sure how organophosphates might interfere with fetal brain development, although they do know that in insects the pesticides slow the breakdown of acetylcholine, an important neurotransmitter.

CNN: Pesticide exposure in womb may hurt your child's IQ

If you don't have a garden, putting a few pot plants on a balcony or windowsill could still provide important food for insects.

BBC: NEWS | UK | How your garden can be a haven for birds