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Two mushrooms on chocolate

14.09.2000

Until 1995, Brazil was the world's leading exporter of cocoa beans. Since then, the Brazilian cocoa crop has shrunk by about four times.

The reason is the fungus Crinipellis pemiciosa, which attacked the plantations. It causes "witch's brooms" on the cocoa tree's branches and, more importantly, destroys the tree's beans themselves. But scientists have noticed that sometimes another fungus called Trichoderma viride grows on this fungus in the Amazon floodplain.

Researchers at the US Department of Agriculture, along with Brazilian scientists, suggested that farmers spray trees with Trichoderma spores. There are already signs of a recovery in the plantations, but it is clear that in the next few years it will not be possible to return the harvest to normal, and the price of chocolate will continue to rise.

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The farmer's initiative has been an incredible success: he's already getting orders for mini-cows from Iowa, which are bred purely for peace of mind, like dogs.

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