Cocktail connoisseurs take note. If you are a gin and tonic lover, better stock up on the gin while you can. Juniper berries — one of gin's most crucial ingredients — are falling prey to a fungal disease in the United Kingdom.

For more on this, we're joined by Martin Ballantine, public relations director for No. 3 London Dry Gin, which is also the official gin supplier to the Royal Family.