Steveo wrote:
Heh, what do you think those beetles are doing when they're not
feeding?... That's right, laying eggs for the next generation.

The Merit will protect Peter's lawn from grub damage this fall
and consequently next spring too.

I really doubt it has washed away, Peter. It clings to organic
material real well.

Steveo, you are only half right. The Merit will protect Peter's lawn
from grub damage this fall (to the extent that the lawn is not already
damaged by grubs that had hatched and started growing before he
applied the Merit).

But next spring is a different story. Even if there are no grubs in
Peter's lawn this fall, there may be lots of them happily munching
away on the grass roots next spring unless Peter applies Merit again
in the spring before the eggs hatch. Remember it's not the grubs that
lay the eggs, it's beetles, and beetles can fly in from anywhere.
Merit in the grass roots this fall won't prevent beetles from
depositing eggs that lie dormant in Peter's lawn until next spring.