John Burgess wrote:

> Neither Bayvarol nor Apistan are organophosphates, unlike Coumaphos.
> They are both classed as synthetic pyrethoids, and are regarded as
> significantly less hazardous to people than OP's.

John,

Yes, that's what we are led to believe. The point here is that I don't
think the
chemical companies told us about the sterilisation effect of these
substances
on drones either! Are any of the people around that they tested this on?

Robert Post - Editor CAPENSIS, Journal of the Cape Bee