One of the things I have been led to understand about Milky Spore is
that it does not outright kill the grubs in their tracks. It stops them
from metamorphosing into beetles. One of the ways I have been told to
see if it's working is to look at grubs that you turn up in the yard -
if they're an opaque milky white, they're infected which is a good thing.

Susan
shsimko[@]duke[.]edu