Iowa
Iowa’s white oaks are dying. New test kits could show why.
COLO — More than a decade into a mysterious epidemic killing off white oak trees, Iowa foresters hope a new test kit will help them quickly screen trees in the field for half the cost of laboratory tests.
Inspired by COVID-19 rapid tests, a Minnesota startup developed a kit that amplifies the DNA of a fungus spreading among oaks weakened by drought. The Iowa Department of Natural Resources hopes to use information gathered from these kits to isolate infected trees and protect others.
“A lot of people are concerned about this white oak decline,” said Tivon Feeley, Forest Health Program leader for the Iowa DNR. Foresters want to know whether they should replant white oaks or choose other species. “Right now, I can’t tell them. (But) this test gives us a lot of tools we can start using.”
Background
Around 2010, foresters across the Midwest started noticing centuries-old white oak trees dying off in just one season and didn’t know why. Oak wilt, a fungal disease spread by insects or through the root systems of infected trees, was a possible culprit, but most foresters hadn’t seen it be so fast or so deadly.
“With this oak decline, we have two to three dead trees almost every other acre,” Amana Society Forester Tim Krauss said in October 2022. “We have to harvest the dead trees because we only have a year until they are no good. We can make our budget by just cutting dead trees. The downside is, they are not coming back.”
When 200-year-old and 300-year-old giants are felled, increased sunlight on the forest floor causes an explosion of invasive species and less-desirable trees, including hackberry and elm, Krauss said.
Climate change has played a role in the rapid decline of white oaks, with drought making the trees more vulnerable to disease or pests.
The U.S. Forest Service and the Canadian Council of Forest Ministers planned a pilot project with a new test kit to quickly determine if a tree has oak wilt, but efforts to develop the kits at the University of Toronto fell through in 2023.
What’s happened since
Abdennour Abbas, a professor of nanotechnology at the University of Minnesota, stepped up in 2023 with PureBioX, a St. Paul, Minn., startup that develops rapid tests for use in health care, pharmaceutical, food and agricultural industries.
“The regular test is a cell culture and it takes a very long time,” said Anil Meher, a PureBioX analytical chemist who last week visited Iowa for a trial of the oak wilt test kits at Hickory Grove Park near Colo, in Story County.
When plant diagnostic laboratories test trees for oak wilt, the results can take two weeks to two months and cost $70 to $300, the Iowa DNR’s Feeley said. PureBioX’s test kits take one hour and cost about $30 each.
“It’s quite simple so you can do it in the field setting,” Meher said.
Mark Runkel, an Iowa DNR forest health technician, and John Mullen, a GIS analyst for the department, walked out into a stand of trees at Hickory Grove to look for white oaks with signs of oak wilt. The outer leaves may turn brown, while the veins stay green. And when a branch of an infected tree is removed, the cut ends smell like fermented fruit.
From each tree, they gathered a cluster of leaves, a branch and a 3-inch trunk core. If the tests of leaves are effective in determining infection, future tests won’t require branches or trunk cores.
Mullen marked the locations of the trees in a tablet and gave each a unique ID. Mapping the infected trees is an early step to determine how oak wilt might be spreading.
Meher and Feeley put each sample into a tube with chemicals that break down the tree matter. Meher extracted the DNA and put it into a tiny vial, which is heated on a portable pad to amplify the DNA. If the Bretiella fagacearum fungus, which causes oak wilt, is present, the liquid will turn yellow. If the fungus is not present, the liquid turns pink.
If foresters find isolated trees with oak wilt, they could spray herbicide on those trees in hopes of halting the transmission through underground root systems, Feeley said.
The team plans to test trees in the Amana Society’s 7,000-acre timber, in Marshall County, in the Loess Hills in Western Iowa and in the Des Moines area. They also are putting out insect traps in forests with oak wilt to see what kinds of bugs might be carrying the fungus. Results of these studies will go into the 2024 Forest Health report.
Comments: (319) 339-3157; erin.jordan@thegazette.com
Iowa
Houston icon George Foreman laid to rest in Iowa, drawn by a peaceful 1988 visit
The late boxing great George Foreman lies buried in a cemetery in the northwestern corner of Iowa – a place he has no connection to outside of a lone visit to the region nearly 40 years ago.
Foreman died March 21, 2025, at the age of 76 in Houston and was buried in Logan Park Cemetery at Sioux City, Iowa, a month later, city officials confirmed. Foreman’s family returned Thursday to his burial site, holding a news conference with Sioux City Mayor Bob Scott to reveal Foreman’s burial place, marked by a large monument that bears an image of him as a teen following his Olympic gold medal boxing win.
The family explained in a statement released by Sioux City officials that he had visited the Iowa city in 1988, and often recalled the sense of peace he experienced there.
After traveling to the city on April 17 last year to bury Foreman, his family said they immediately understood the region’s appeal.
“Our father lived a life of purpose, faith and gratitude,” the family said in a statement released by Sioux City officials. “To see him laid to rest in a place that brought him peace means everything to us.”
Scott joined the family at Foreman’s monument that lies just a few miles north of the Missouri River in an upper Midwest city of nearly 87,000 people. The cemetery overlooks the scenic Loess Hills, created by windblown silt deposits that reach up to 200 feet high (about 61 meters) and line the river along the Iowa border for 200 miles (322 kilometers).
“Their story is a reminder of how one place can stay with someone for a lifetime,” Scott said.
A native Texan, Foreman rose to fame when he made the 1968 U.S. Olympic boxing team, winning gold in Mexico City. He became the heavyweight champion of the world in 1973 by defeating the great Joe Frazier, only to lose the title a year later to Muhammad Ali in the famous “Rumble in the Jungle.”
A full 20 years later in 1994, Foreman became the oldest man to win the heavyweight championship at 45, defeating Michael Moorer in an epic upset.
Foreman retired in 1997 with a 76-5 career record.
He then moved on to the next chapter in his life as a businessman, pitchman and occasional actor, becoming known to a new generation as the face of the George Foreman Grill. The simple cooking machine sold more than 100 million units and brought him more wealth than boxing.
A biographical movie based on Foreman’s life was released in 2023.
Copyright © 2026 by The Associated Press. All Rights Reserved.
Iowa
GOP governor candidate Zach Lahn pitches Iowa-first platform at Dubuque town hall
DUBUQUE, Iowa (KCRG) — About 50 Iowans braved the threat of severe storms to hear from Republican candidate for governor Zach Lahn at his town hall in Dubuque Friday night.
Lahn, a farmer and businessman, said his campaign is about solving the long-term systemic issues facing Iowans.
One priority is addressing what Lahn calls a cancer crisis in Iowa, as the state has the second-highest cancer rate in the country. Solving the crisis means ensuring Iowans have access to clean, nitrate-free drinking water, working with farmers to reduce agricultural runoff.
“Iowans are just ready for something that they should be able to count on, like clean drinking water,” Lahn said. “We have ways to clean up the drinking water in Iowa that isn’t on the backs of farmers, but is working alongside with them because they’re drinking the water too, and they want to do what’s right.”
Lahn also wants to stop Iowa’s “brain drain,” as more of Iowa’s college graduates left the state for opportunities elsewhere.
“Don’t leave! Give me some time! I’m going to fight to keep you here,” Lahn said. “I was one of these kids. I thought I had to leave the state to find something better. We have to prioritize Iowa’s incentive dollars to make sure they’re going to grow Iowa businesses that are going to be here for the long haul, so our kids have places to work.”
Running a distinct campaign feels challenging this election, as Lahn is one of five GOP candidates who want to be Iowa’s next governor, facing U.S. Rep. Randy Feenstra, former Department of Administrative Services Director Adam Steen, state Rep. Eddie Andrews and former state Rep. Brad Sherman.
Iowa Auditor Rob Sand is the only Democrat running for the state’s top office.
Lahn said he stands out by promising Iowa will be for Iowans, pledging to ban the use of eminent domain for private gain and tax out-of-state landowners and data centers at higher rates to lower property taxes.
“It always goes back to follow the money, so when it comes to not being a weak-kneed Republican today, I believe the paramount piece of that is answering only to the citizens of Iowa, not to special interests to pad their bottom line, but what’s best for the people of Iowa,” Lahn said.
Copyright 2026 KCRG. All rights reserved.
Iowa
Iowa State adds women’s wrestling, Alli St. John to coach
Iowa State announced Thursday the addition of women’s wrestling as its 18th varsity sport, with the program scheduled to begin competition during the 2027-28 academic year. The team is the first varsity sport added at the university since soccer in 1996. Iowa State will be the 12th school in the state of Iowa to have an NCAA women’s wrestling program.
The Cyclones will be only the second Power Four institution to feature a varsity women’s wrestling program, joining the University of Iowa.
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The university appointed Alli St. John, a two-time World Wrestling Championships silver medalist, as the program’s first head coach. St. John, who has spent the last three years with the Cyclone Regional Training Center, was a two-time women’s college national champion at King University.
“I am incredibly honored and grateful for the opportunity to be the first head coach of women’s wrestling at Iowa State University,” St. John said. “This is a historic moment not only for Iowa State University, but for the sport of wrestling, too. Iowa State has a rich wrestling tradition, and I’m excited to expand that legacy on the women’s side as we work to build a premier program in Ames that produces not only NCAA champions, but World and Olympic champions as well.”
The program will support a roster of 30 student-athletes with 10 scholarship equivalents, matching the scholarship limit of the men’s team. Official competitions will be held in Hilton Coliseum, with practice facilities in Beyer Hall.
The university also announced a major restructuring of its wrestling leadership, naming long-time men’s head coach Kevin Dresser as the Director of Wrestling. In this new capacity, Dresser will oversee both programs, assisting with fundraising and mentoring the coaching staff, which includes newly promoted men’s head coach Brent Metcalf.
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“The addition of women’s wrestling is an exciting opportunity for Iowa State Athletics,” Dresser said. “The fact that it is one of the fastest growing sports at the high school level coupled with the overall love of wrestling in the state of Iowa makes this a very good decision. I can envision the Iowa Corn Cy-Hawk dual already and the excitement it will bring to the sport. I am excited to roll up my sleeves and help start another wrestling program.”
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