BBC:- At least one million bees are suspected to have died of poisoning in a wine-producing area of South Africa.
Brendan Ashley-Cooper told the BBC that an insecticide used by wine farmers, Fipronil, was thought to have killed the insects on his farm.
Other honey bee farmers in the area around Cape Town have also been affected, but it is still unclear how many of the insects have died, he said.
Fipronil has been blamed for the deaths of millions of honey bees in Europe.
Campaigners say Fipronil is highly toxic to insects, and its use was restricted in Europe in 2013.