Originally Posted by
Joe Billingsley
... some produce sugars and alcohols in their body fluids - their own personal antifreeze - but that builds up gradually throughout the fall season. It will dissipate when they are exposed to warm temperatures, which is one of the reasons to take the materials out of the freezer for a few days and then put them back in. Another reason is that some insect eggs are not effected by the freezing temperatures as the adults are but will become active right after they warm up. You get two shots at them.
Joe