On Sun, 28 Jan 2007 11:20:53 +1100, Jonno
wrote:

Dipel is used to prevent any of the grubs killing them and preventing
them growing to be butterflies.
Its a safe anti bacterial grub killer.

That is true, but dipel tends to work best on butterflies and moths
and may not be effective against beetles. If the OP has a cucumber
beetle problem then dipel may just be a waste of money. The OP will
need to get the problem insect properly identified before working on a
control method.

Tish