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Containing diseases, insects: System prevents pest leaving portContaining diseases, insects: System prevents pest leaving port

February 10, 2006

3 Min Read

For eight years, University of Georgia Cooperative Extension county agents have used digital images, computers and e-mails to quickly diagnose insect and disease problems. Now a UG team has installed its system in Honduras to protect U.S. farmers and consumers.

Called Distance Diagnostics through Digital Imaging, the system is in most UG Extension county offices statewide. UG shared the technology with 12 other U.S. land-grant universities and then added Honduras as its first international partner.

Two DDDI systems have been set up at the Port of Cortez to prevent plant diseases and insects from leaving Honduras.

“This is one of only a handful of U.S. Customs offices set up in ports outside the United States,” says Marco Fonseca, a UG Extension horticulturist and native Honduran. “A U.S. inspector checks the shipments, so now agricultural products can go straight into our market.”

Fonseca says the U.S. benefits are twofold: The nation is further protected from plant diseases and insects entering its borders, and Americans get fresher imported fruits and vegetables.

“The DDDI system at the port is very valuable in terms of biosecurity,” he says. “And it expedites the process on valuable, perishable products. We need to identifiy pathogens and pests at that point, not on our shores.”

Inspectors are trained to look for pathogens and pests common to the region. Fonseca says with insect pests, this includes training inspectors to recognize all stages of an insect's life, not just the adult stage.

“Barriers like this slow down the movement of pathogens and pests,” he says. “It's a defense system to slow down movement. We aren't going to stop the movement of people, so we have to stop the movement of pathogens.”

The DDDI systems at the Port of Cortez were two of five installed through a UG partnership with the Zamorano Pan American School of Agriculture in Honduras. The other three were set up at the university, on a rural ranch and in a farm village.

“The Extension system doesn't exist there, so farmers don't have county agents to go to for help,” Fonseca says. “Now there's a way for them to get help from the local agriculture university.”

Jean Walter, a UG Extension agent in Jasper County, Ga., knows how well DDDI works, pointing to a weed problem she checked in a farm pond.

“I took pictures of the pond, close-up photos of the weeds and then used the dissecting scope to take magnified photos,” she says. She e-mailed the photos to a UG researcher, who quickly identified the problem and recommended how to control it.

Farmers and homeowners like the quick turnaround. “With the high price of gas now, we're seeing a huge increase in the system's usage,” she says.

At an aquaculture conference in Panama and later during a church mission trip in Honduras, Walter got the idea of sharing the technology with other countries.

“In Panama, I heard farmers talking about the huge loss their country's shrimping industry suffered due to white spot virus,” she says. “This system could have saved Panama and other surrounding countries millions of dollars.”

In Honduras, she saw many ways the DDDI system could be used. “I know ‘rural poor’ because I've seen it,” says Walter, who also lived in the Philippines for five years. “I know what it's like to not have access to health care for people and animals.”

Walter gained the support of Fonseca and Don Hamilton, director of the DDDI program at UG. What she still needed was funding. That came from Robert Fowler of Covington, Ga.

Sharon Omahen writes for the University of Georgia.

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