News on Zebra Chip disease from the Americas

January 26, 2016

Costa Rica Announces Intention to Reopen Chipping Potato Market to US Chip Stock

Costa Rica's Servicio Fitosanitario del Estado (SFE) has informed USDA's Animal Plant Health Inspection Service (APHIS) that it will begin issuing import permits for US chipping potatoes beginning February 1, 2016.

January 31, 2015

Potato Psyllids in Pacific Northwest declining

Levels of zebra chip, a crop disease in potatoes spread by potato psyllids and caused by the Liberibacter bacterium, were down signficiantly in the Pacific Northwest.

May 01, 2014

ARS: Potato Psyllids dissected for clues to better controlling it

Researchers at USDA's Agricultural Research Service are leaving no stone unturned when it comes to finding new ways of managing zebra chip disease and the insect that can spread it to potato crops.

August 21, 2013

Potato Psyllid Trapping and Management - Focus on Potato webcast

This webcast by the Plant Management Network on Potato Psyllids, responsible for the transfer of the Zebra chip disease consists of two parts:

August 07, 2013

Potato psyllids in Pacific North West show far less zebra chip disease this year

About the same number of potato psyllids have been caught on sticky traps in Idaho fields this season as by this time last summer, but far fewer of the tiny, winged insects have tested positive for the Liberibacter bacterium, which causes the crop dise...

June 05, 2013

Research: Infected volunteer potato plants unlikely to spread zebra chip disease

Volunteer potato plants growing from seed infected with zebra chip are likely too few in number and survive too briefly to contribute to the spread of the crop disease, according to new Oregon State University research findings.

April 22, 2013

Potato Psyllids Have Returned to Magic Valley

Potato Psyllids Have Returned to Magic Valley, Idaho Or maybe they just never went away. Psyllids, a tiny insect that can damage potatoes, might be hardier than some people originally thought.

March 15, 2013

Potato Psyllids shown to survive harsh Idaho winter, heightening zebra chip concerns

It appears that potato psyllids, the tiny winged insects that can spread zebra chip disease in potato fields, will overwinter in Boise, Idaho, this season, despite the city experiencing one of its coldest Januaries on record.

March 05, 2013

Idaho Potato growers approve contracts with Simplot, McCain

Idaho potato growers at a Monday meeting in Burley approved processing contracts with J.R. Simplot and McCain Foods that both include payment increases averaging 1.6 percent.

February 27, 2013

Idaho Potato Growers to vote on McCain, Simplot contracts

Idaho potato growers will vote Monday in Burley on contracts with McCain Foods and J.R. Simplot Co. paying a 1.6 percent average increase, according to sources involved in negotiations.

October 24, 2012

La mancha rayada, una nueva amenaza para la papa

Los paperos de Costa Rica temen la entrada de esta enfermedad a su territorio. No es para menos. En Honduras ha ocasionado grandes pérdidas económicas y en Nicaragua ya fue detectada. Se trata de la mancha rayada o zebra chip. La mancha rayada está pr...

October 11, 2012

South Korea lifts ban on Pacific Northwest grown potatoes

South Korea has lifted a ban against Pacific Northwest-grown potatoes used for things like potato chips, but a ban on other fresh potatoes still remains because of a fear over a bacterium known as zebra chip, state officials announced Wednesday during ...

August 28, 2012

Potato psyllid populations growing dramatically in Columbia Basin

Researchers say populations of potato psyllids - vectors of a new crop disease to the region called zebra chip - are growing dramatically in the Columbia Basin.

August 23, 2012

US potato industry working to reverse ban on domestic exports to South Korea

The U.S. Department of Agriculture's Animal &Plant Health Inspection Service is working to provide data to officials in South Korea that it hopes will result in a reversal of a decision to ban potato exports from Oregon, Washington and Idaho.

Zebra chip disease affected potato tubers

August 16, 2012

University of Idaho receives grant to study zebra chip disease

The federal government is providing $109,000 for the University of Idaho to study an emerging plant disease the school says “poses a substantial threat to the state’s potato industry.” The money will be used to monitor potato fields for the presence o...

August 02, 2012

'Zebra chip' disease concerns Northwest potato growers

Northwest agriculture researchers in the US say they are finding more cases of a zebra chip disease in the region’s potatoes.

July 26, 2012

US organic potato growers have no approved zebra chip options

While other potato growers use preventative insecticide applications to protect their crops from a new disease to the Pacific Northwest, called zebra chip, Fred Brossy can only wait and see if it hits him.

July 04, 2012

Idaho potato growers concerned over zebra chip

Liberibacter, the bacterium responsible for zebra chip, has been found in an Idaho potato field.

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