yet another gift from China. more at link


http://www.miaminewtimes.com/2008-07-24/news/orange-crush/


"A year ago, we were just getting our heads around greening," says Michael Sparks, chief executive of Florida Citrus Mutual, the state's industry association. "Now it's clear this thing is stronger and more troubling than anything we've encountered in the past. It's bigger than canker. We could lose citrus in Florida. It's that big."

HLB, first discovered in China, is the deadliest and least understood pathogen in the citrus world. Spread by insects, it hibernates like HIV before striking like ebola, killing trees from the inside and transforming oranges and grapefruit into sickly, dry, and deformed green orbs. In a macabre touch, the disease turns citrus seeds black. There is no cure; infected plants must be uprooted and destroyed.

First detected in Florida a decade ago, HBL in 2007 spread to all 30 of the state's citrus growing counties, with the worst infections located in the south.

"We estimate that the disease has established itself in between 12 and 20 percent of all citrus trees in the state," says Denise D. Feiber, of the Florida Department of Agriculture's Division of Plant Industry. "We tell growers that if it isn't in their groves yet, it's likely on the way, or they just haven't tested thoroughly enough."

Terrified, the industry has begun to mobilize. Sparks speaks of a "Citrus Manhattan Project" currently under way in labs across the state, funded mostly by local growers. This December, Orlando will host a conference called Reaching Beyond Boundaries, which will bring together citrus scientists from around the world to share experiences and craft a globally coordinated defense strategy.