USA pollination crisis deepens

First it was Californian almond groves, then the Minnesotan apple orchards and now it's the Massachusetts cranberry bogs.

New England's cranberry growers fear there aren't enough bees to pollinate the cranberry blossom. Colony losses of between 40% and 80% are being reported. For the moment, they've run out of effective varroa controls and paying the price for not applying Integrated Pest Management controls (alternating different types of treatment).