The special effects for the bee attack sequences were quite simple. Often footage of swarming bees would be superimposed over footage of the actors and fake plastic bees would be glued to the actors. Some shots of swarming "bees" was actually footage of coffee grounds, floating and swirling in water tanks, that was superimposed over landscape footage.
In the novel, written in the first-person singular, "I", there is no visiting female pop star on the island. The lead character is a local man who likes honey and one day decides to buy it from a different beekeeper than he usually does. This ties into the novel's title, "A Taste for Honey".
The 1967 review of this film in the now-defunct "Monthly Film Bulletin" magazine claimed that the film had originally run 123 minutes and been shortened against the wishes of its makers by forty minutes. This was entirely incorrect, as a later edition of the magazine conceded, but the misinformation has found its way into reference works.