What range of temperature is tolerated for a cricket?

I am making an estimate based on reading the Fluker's live cricket farm website.

A temperature range for live crickets is 55 degrees F to 100 degrees F.

The temperature at which live crickets are likely to die is 15 degrees F. The cricket farm uses 15 degrees F as their temperature limit for shipping live crickets.

From biological considerations, 15 degrees F is a "hard freeze" where free water molecules are likely to form ice crystals.

What I can't clarify so far is what is the lower temperature limit for cricket eggs?

I have crickets infesting some cardboard storage cartons and I would like to find a relatively non-toxic way to stop the infestation. I have tried putting cell phones with roach or crickets in a freezer bag, remove the battery, and freezing the bag for a week.