Sulphur Discs from Thornes ? needed?

[ericbeaumont]

I'm not sure

Nor me. Seems that there are three types of camphor: clear, brown and blue. Clear is used medicinally and in Indian cooking, brown and blue are toxic. What is worrying is that while the product is described with one word, it is produced from two wildly different sources: the tree cinnamomum camphora, or turpentine oil.

https://www.medicalnewstoday.com/articles/camphor-oil

 

[BeeKeyPlayer]

while the product is described with one word, it is produced from two wildly different sources

Off on a tangent:

Something similar occurs with 'cedar'.

On a tour of gardens in the Cotswolds, the guide, who was primarily a tree specialist, told us that there are four distinct kinds of cedar trees. ‘There’s Atlas cedar, Cyprian cedar, Himalayan cedar, and cedar of Lebanon.’

Later I asked him about our western Red cedar. It turned out he had been a beekeeper in the past, so he knew exactly what I was talking about. Western Red cedar is not a true cedar, in the Cedrus genus, he said. Despite its name, it’s a cypress; in the family Cupressaceae.

 

[Jules59]

This winter I froze all my boxes to be stored for 24-48hrs. (I recovered a small discarded chest freezer from a ditch - it can take 3 supers at a time). Stacked the boxes and ran packaging tape around the joints (to "seal" any gap) and then put a dish of 80% acetic acid inside an empty super above the top box and then a lid on the super. Then left them.
Just had a look at the boxes - pleased to say this is my first year with no wax moth in the stored boxes.