Industry Leaders Warn Potato Wart Could Threaten U.S. Export Markets

National Potato Council CEO Kam Quarles says potato wart could have devastating consequences for U.S. growers and export markets.

WASHINGTON, D.C. (RFD News) — The U.S. potato industry is urging the USDA to reinstate a ban on potato imports from Prince Edward Island in Canada following a newly confirmed case of potato wart disease in the region.

National Potato Council CEO Kam Quarles says preventing the disease from entering the United States remains critical for the future of the industry.

“We cannot, under any circumstances, allow potato wart to get into the United States. The impact on the entirety of the U.S. potato industry from that development would be absolutely catastrophic. The most difficult thing about this disease is it will lie dormant in the soil for forty years, and if it comes into contact, four decades later, with host material, which is potatoes, it will be off and running again.”

Quarles says the industry believes reinstating the import ban is the most effective way to protect U.S. potato growers and export markets.

“The states that are the heaviest fresh potato exporting states are going to lose their export markets overnight and likely be shut down for a period of time. The cheapest, most effective option right now is to keep it out of the U.S., and that’s what we’ve been screaming about for five years as it has gotten larger on Prince Edward Island.”

Quarles says action is needed quickly to help protect the more than 714,000 jobs connected to the U.S. potato industry.

National Potato Council CEO Kam Quarles joined us on Friday’s Market Day Report amid renewed industry concerns surrounding the disease.

In his conversation with RFD News, Quarles further outlined the latest detection and the threat potato wart could pose to American agriculture if it were to spread into the United States.

He also touched on the long history of policies aimed at preventing the spread of potato wart disease, including previous detections in both Prince Edward Island and the U.S.

Quarles additionally discussed what actions the potato industry is currently calling for, along with his outlook for the Farm Bill following House passage last month, and what the timeline for the legislation could look like moving forward.

Related Stories
The phone call injected optimism into the soybean market, but actual Chinese buying and its timing will ultimately determine the extent of U.S. agricultural export benefits.
Mexico has fallen behind by several hundred thousand acre-feet in required water deliveries to the United States, a shortfall that has had devastating consequences across the Rio Grande Valley.
Purdue University Professor of Agricultural Economics Dr. Jim Mintert shares a closer look at farmer sentiment and the key issues shaping the agricultural economy in January.
Stronger U.S.-Guatemala trade rules favor dependable, regionally integrated supply chains — rewarding execution and commitment over cost-only sourcing.
China-led demand continues to anchor soybean and sorghum exports despite weekly swings.
Global pork production is expected to rise in the first half of 2026, despite trade volatility stemming from shifting import policies and swine disease pressures.

Knoxville native Neal Burnette-Irwin is a graduate from MTSU where he majored in Journalism and Entertainment Studies. He works as a digital content producer with RFD News and is represented by multiple talent agencies in Nashville and Chicago.


LATEST STORIES BY THIS AUTHOR:

Farm groups urged lawmakers to maintain free and fair trade across North America.
Fir Ridge Holstein Farm continues to embrace new technology while raising registered Holsteins.
The updated lineup helps producers boost efficiency while enhancing operator comfort.
Global supply routes and U.S. energy inventories remain key factors for fuel markets
The University of Georgia event highlighted tools designed to help producers become more efficient and sustainable.
Questions remain about quarantines as state and federal officials respond to confirmed cases.