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The Soaring Price of Limes Means Trouble: Are Asian Bugs and Climate Change the Culprits?

The average price of limes has shot up from 23 cents to over a dollar -- here's why.
 
 
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If you ever need a reminder how fragile and unpredictable globalization has made the world's food supply, just consider the humble lime.

In recent months, a constellation of unpredictable events have conspired to increase the price of the tasty fruit from 23 cents to more than $1 in North America.

A 40-pound box that once sold for $16 now goes for $120. And most of the contents are juiceless and tasteless nubs.

Because of "The Great Lime Crisis of 2014," restaurants from New York to Los Angeles have stopped selling margaritas and making guacamole. Many bars now charge for a slice of lime.

David Karp, a citrus expert, recently  asked a good question in the New York Times: Is the lime an endangered species?

Everyone agrees lime price volatility is here to stay, much like Rob Ford.

Most news stories blame it on a Mexican drug cartel known as the Knights Templar. The original Templars, a bloody bunch of Crusaders, ironically introduced the lime to southern Europe after their frenzied religious killings.

But Mexico's  Knights, once led by Nazario Moreno (an evangelical Christian with a fondness for Khalil Gibran and severed heads), specialize in the methamphetamine trade.

The entrepreneurial Knights also dabble in illegal ore mining, and trafficking in avocados and limes (green gold).

When shortages transformed a truckload of limes into cargo worth $300,000 last year, the bullets started flying in rural Mexico.

Local growers got so fed up this year, they formed their own armed vigilante groups to battle the Templars in the state of Michoacán.

Meanwhile, hurricane-driven rains damaged much of the Mexican lime crop last fall -- and so the lime market has now gone bananas.

A citrus killer spreads

The United States' dependency on Mexican lime monocultures has made matters worse. India and Mexico now grow most of the world's limes and the United States, which no longer feeds itself, gets about 98 per cent of its limes from south of the border. This wasn't always the case.

The Beijing Exchange, a modern version of the Columbia Exchange, partly explains the United States' citrus poverty.

China, the largest trader of goods on the planet, has been sending a variety of Asian bugs, bacteria, viruses and other invaders around the world the same way Europeans bombarded North America with smallpox, dandelions and cattle in the 17th century.

Since 2004, huanglongbing (HLB), also known as yellow dragon disease or citrus greening, has devastated Florida's $9-billion citrus industry. It has gobbled half the industry's value the same way  porcine epidemic diarrhea virus, another invader from China, has eaten into corporate bacon profits.

Having dispatched most of Florida's limes, HLB is now working on oranges and grapefruit.

In 2012, Florida abandoned 135,000 acres of citrus groves due to the ravages of HLB. Eight years ago, the state produced 240 million boxes of fruit. Today, it harvests but 138 million.

The insidious bacterial disease, a sort of plant version of typhus, withers and distorts trees before killing them. To temporarily eradicate the disease takes Herculean efforts that involve the chainsawing of infected groves, the application of massive doses of pesticides and costly replanting.

It's a bit like ridding a hospital of deadly antibiotic infections: messy, costly and complicated.

Carried by an Asian jumping plant louse, the biological invader probably originated in Guangdong province in the 19th century. That's the same global factory that launched SARS and H5N1 onto trade and travel routes.

Mobility always has biological consequences. The bacteria hitched rides on the orange jasmine plant trade while the jumping louse took planes (the Asian citrus psyllid is strongly attracted to lights in commercial and military aircraft).

 
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