News on Potato Defects and Diseases from the United States

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

Although late blight has been confirmed in 12% of Wisconsin’s counties, growers took aggressive action to control the disease and are predicting full yields and high quality potatoes of all varieties this season.

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...

Key Technology announces that it has signed an exclusive licensing agreement with EVK DI Kerschhaggl GmbH and Insort GmbH to deploy Chemical Imaging Technology (CIT®), an advanced value-added hyperspectral solution, in Key’s products, further enhancing...

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.

As the potato growing season begins, The Washington State Potato Commission (WSPC) will provide free Integrated Pest Management (IPM) supplies for Washington’s potato growers.

The U.S. Department of Agriculture's Animal and Plant Health Inspection Service (APHIS) today announced the launch of the State National Harmonization Program (SNHP) for seed potatoes.

Syngenta continues partnerships with key universities in Idaho, Michigan, North Dakota, Oregon and Washington to bring late blight hotlines to US potato growers in 2013.

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.

The pale cyst nematode, Globodera pallida, is one bad roundworm. Unchecked, it invades the roots of potato and other host crops to feed, obstructing the free flow of nutrients and causing stunted growth, wilted leaves, and other symptoms that can event...

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.

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.

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.

Potato breeding developments being researched by graduate students in the Department of Plant and Soil Sciences of the University of Maine look to save the future of Maine’s iconic crop.

When a pathogen attacks a plant, infection usually follows after the plant’s immune system is compromised.  A team of researchers at the University of California, Riverside focused on Phytophthora and deciphered how it succeeded in crippling the potato...

Understanding the physiology of seed potato aging and how it affects crop growth and yield can be vital to the industry. Such knowledge will allow growers to adopt management practices that control the aging process and optimize tuber set and size.

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 ...

The Idaho potato industry is forming a task force to trace the origin of a ring rot flare-up that's affected roughly 20 farms, mostly in the Magic Valley area. University of Idaho Extension seed potato pathologist Phil Nolte, who will likely head the ...