Katie Vandenberg's family has lived in Tazewell County for seven generations. Still, even that history didn't prepare her for the text message her neighbors got, warning them to shower off after a nearby field was sprayed. Her own daughter, Genevieve, was among the children and staff exposed when pesticide drift swept over Bethel Lutheran School in Morton in April, according to a state investigation. Months later, the fallout is still playing out in hearing rooms and in Springfield, where a bill meant to warn residents before the next spray has stalled for a third time.
The Morton incident began when applicator Mark Eigsti sprayed pesticides on soybean fields across from Bethel Lutheran School, according to the Chicago Tribune. State investigators determined the spraying happened during wind gusts exceeding 19 miles per hour, and drift ultimately exposed more than 200 children and staff at the school. Parents got a message that read simply, “showers for all tonight,” while students and staff later reported headaches, sore throats, skin irritation and red eyes in interviews with state investigators. State inspectors collected samples from the site, including clothing belonging to Vandenberg's daughter, Genevieve, who the Tribune reports has not experienced lasting health effects.
The Illinois Department of Agriculture fined Eigsti $250,000 in July, and the money is designated for the state's pesticide control fund. The agency also revoked his pesticide applicator license that same month. Eigsti appealed the penalty at a hearing on August 4 and has a follow-up appearance scheduled for September 1. The size of the fine reflects a 2023 change in state law: Senate Bill 203 established a tiered penalty scale charging up to $1,250 per exposed person for human pesticide exposure, replacing an older $750-per-incident cap that treated harm to people similarly to crop damage, according to the Illinois General Assembly.
A Pattern Beyond One Field
Morton isn't an isolated case. Other residents filed eight additional complaints, according to agency records cited by the Tribune, and Vandenberg herself filed a complaint with the Illinois Department of Agriculture after she says nearby farm pesticide applications damaged and stunted oak leaves on her 43-acre property of woods and reclaimed native prairie, where she has lived for three years. Pesticide drift, the Tribune reports, has reached parks and schools both near and far from agricultural fields — in one case traveling more than three-quarters of a mile from its source.
That distance lines up with what the Prairie Rivers Network found in its own testing. The group's April 2026 study, titled “Pesticide Drift in Public Spaces,” recorded 296 detections of 18 different pesticides across 10 monitored public schoolyards and parks in 10 Illinois counties, testing monthly from May through September 2025 and averaging 20 drift events per site. Separate air and foliage testing detected airborne pesticides as far as 3,700 feet — over 0.7 miles — from the nearest potential application source, according to Investigate Midwest. Testing at the Morton site detected traces of Glory 4L and Trifluralin 4EC herbicides, both classified as possible human carcinogens by the U.S. EPA, per the Tribune's reporting.
Chemicals That Do Not Stay Put
Prairie Rivers Network's monthly testing found 2,4-D at every single monitored public site every month of the 2025 growing season, while atrazine, dicamba, glufosinate, acetochlor and metolachlor turned up during multiple summer months. The organization's six-year monitoring effort has detected herbicides in more than 90% of 127 plant tissue samples, and dicamba, 2,4-D and atrazine were detected at most monitored sites overall. “People have a right to know because chemicals do not stay put,” said Amy Doll, per the Tribune's account. Prairie Rivers Network began receiving increased reports of damaged trees and gardens around 2017, the same year dicamba-resistant soybeans were introduced in Illinois.
That timing tracks a broader shift documented separately: Illinois pesticide misuse complaints averaged just 77 per year before 2017 but surged past 400 annually once over-the-top dicamba applications were approved for resistant soybeans, peaking at 455 dicamba complaints in 2019, according to Farm Progress. Dicamba was banned by federal courts in both 2020 and 2024, but the Trump administration's EPA approved over-the-counter dicamba use for soybeans and cotton for the next two growing seasons in February 2026 — a reversal Hoodline detailed in its coverage of Midwest vineyards bracing for dicamba's return.
A Notification Bill Stuck for a Third Time
State Rep. Laura Faver Dias of Grayslake sponsors a proposed pesticide-notification bill that would require applicators to give at least 72 hours' notice before spraying within a half-mile of schools and parks. It's the third time such a measure has been introduced, and it still has not advanced in the Illinois legislature. Faver Dias has said the Morton case is exactly the point of the bill, and she is considering bringing it back again next year. The Illinois Farm Bureau and the Illinois Fertilizer and Chemical Association oppose the measure. Jenny Webb has said Illinois pesticide application decisions depend on field conditions on the day of application, an argument the Tribune frames as central to farmers' resistance to fixed notification windows.
Illinois currently has no established method to track agricultural pesticide drift and, according to the Tribune, lacks regulations sufficient to prevent pesticide exposure from nearby farmland reaching homes, schools and parks. The state does bar K-8 schools from scheduling pesticide treatments on their own grounds while students are present, under the Pesticide Application at Schools Act that Gov. JB Pritzker signed in 2023 — but that law does not touch spraying on adjacent farm fields, which is what exposed Bethel Lutheran School. The American Academy of Pediatrics has warned that children may be especially vulnerable to pesticide exposure, a concern that runs through both the Morton case and the statewide testing data.
Illinois legislators and advocacy groups have proposed requiring advance notification before spraying near schools and parks, but for now the state remains an outlier. Other major agricultural states have gone further: California requires a quarter-mile pesticide buffer zone around public K-12 schools and daycares during daytime hours, along with annual pesticide disclosure requirements, according to the Midwest Center for Investigative Reporting. Illinois has no comparable state-mandated buffer at all.
