"Nathanael" wrote in message
oups.com...
I applied the crabgrass preventor about a month ago, and wish to put
down some insect killer on the lawn now to keep the grass bug free for
when the kids play on it. Will this break that protective barrier that
they say the preemergent gives to the lawn?

Your children are far more likely to be harmed by the toxic chemicals you
use to kill insects than the insects themselves.

Jacqui