> That was the impression that I was getting. Are the beetles showing up to snack on the patties only if the beetles are already there?

 I would be sure that you would not be getting SHB through the pollen patties.  The egg would have to last through the production phase and then be still viable.    As others have said the SHB are in the hive and then feed on the patty.  That is my experience.

> Does anyone know if freezing the patties before putting them out will actually work to kill eggs?

Freezing kills eggs, larvae and beetles.  See https://www.business.qld.gov.au/industry/agriculture/species/invasive-animals/other/small-hive-beetle I used a refrigerated container (reefer) to control both SHB and wax moth.  


Trevor Weatherhead
Australia

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