TROPICAL RACE IV

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Tropical Race Four, a soil-borne fungus threatening Cavendish banana cultivation. More than a thousand kinds of banana can be found worldwide, but a variety called Cavendish, which a nineteenth-century British explorer happened upon in a household garden in southern China, represents ninety-nine per cent of the banana export market.

The Cavendish, which is rich in Vitamins B6 and C, has high levels of potassium, magnesium, and fibre; it is also cheap—about sixty cents a pound. In 2008, Americans ate 7.6 billion pounds of Cavendish bananas, virtually all of them imported from Latin America. Your supermarket likely sells many varieties of apples, but when you shop for bananas you usually have one option. The world’s banana plantations are a monoculture of Cavendishes.


Tropical Race Four appeared in Taiwan in the late eighties, and destroyed roughly seventy per cent of the island’s Cavendish plantations. In Indonesia, more than twelve thousand acres of export bananas were abandoned; in Malaysia, a local newspaper branded the disease “the H.I.V. of banana plantations.” When the fungus reached China and the Philippines, the effect was equally ruinous. Australia was next. Scientists believe that Tropical Race Four, which has caused tens of millions of dollars’ worth of damage, will ultimately find its way to Central America—and to the fruit that Americans buy.
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