Zebra chip ziekte uit de Verenigde Staten

april 20, 2019

New type of zebra chip disease discovered in potato fields of Oregon

ARS Researchers studied potato tubers from the Klamath Basin in Oregon infected with the causal bacteria of zebra chip disease. They confirmed the presence of the pathogen but did not identify the sample as one of the six known varieties (haplotypes).

juli 09, 2018

Idaho potato crop on track despite early cool weather

Idaho potato fields looked good as of early July as plants closed in over rows, signaling the tubers are preparing to grow strongly amid the hot-day, cool-night march toward harvest.

juli 03, 2017

University of Idaho reports light potato psyllid pressure

Pressure from the tiny, winged insects that spread zebra chip disease in potatoes has been light in Idaho this season, emboldening some Idaho farmers to scale back on their pesticide programs.

april 23, 2017

Variety screening reveals potatoes with resistance to zebrachip disease

The Texas A&M AgriLife Research plant pathology team intentionally infected potato plants with psyllids positive with the bacterium that causes zebra chip disease, in order to identify promising germplasm in the battle against the disease plaguing the US potato industry for the past 15 years.

april 02, 2017

Neonicotinoid insecticides losing efficiency in potato psyllid control

The potato industry may be losing a mainstay in the battle against psyllids, according to a recent Texas A&M AgriLife Research study.

augustus 11, 2016

Potato Psyllid Alert for North Dakota

Potato psyllids have been reported in specific fields in western and central North Dakota. At this point populations are not widespread.

augustus 01, 2016

Harvest, psyllids & new varieties the hot topics at Texas potato field day

Participants at the 25th annual Texas Potato Breeding and Variety Development Program field day learned that the harvest is underway, that psyllids are threatening unharvested fields and that new varieties are showing lots of promise.

april 25, 2016

Growing Insecticide Resistance of Potato Psyllids investigated at AgriLife Research

Entomologist Ada Szczepaniec at Texas A&M AgriLife Research is addressing the concern of growing resistance of potato psyllids to the neonicotinoid classification of insecticides.

januari 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.

mei 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.

augustus 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:

augustus 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...

juni 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.

maart 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.

maart 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.

februari 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.

oktober 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 ...