EPA Approves New Tool in Fight Against Citrus Greening Disease

EPA’s approval gives citrus growers a new disease-fighting tool against greening at a time when production losses remain severe.

20240118_Citrus_011.jpg

Citrus greening, or Huanglongbing, inflicts approximately $3 billion in agricultural losses each year. Finding novel solutions for the disease has become a high priority for AgriLife Research, which has developed new screening methods and potential treatments in response to the disease’s continued spread. (Sam Craft/Texas A&M AgriLife)

Photo by Sam Craft via Texas A&M AgriLife

NASHVILLE, Tenn. (RFD NEWS) — The Environmental Protection Agency (EPA) has approved a new citrus rootstock designed to help trees defend themselves against citrus greening, giving growers another tool against one of the industry’s biggest threats. The decision comes as Florida citrus production remains near historic lows after years of disease pressure.

The product, called CarriCea T1, is a citrus rootstock that uses precise edits to the tree’s own genes rather than adding DNA from other organisms. EPA said the rootstock helps disrupt the interaction between the citrus plant and the bacteria that cause greening.

That matters in the grove because stronger plant defenses could reduce dependence on conventional sprays. EPA said the new tool may help growers manage citrus greening with fewer chemical applications while protecting yields and productive acreage.

The backdrop is severe. EPA said greening has destroyed more than 90 percent of Florida citrus production over the past two decades, and USDA reported the 2024-2025 Florida crop was the smallest since the 1919-1920 season.

EPA said fruit produced from the new rootstock will be indistinguishable from fruit grown on other rootstocks. The agency also said it completed a dietary safety review under its plant-incorporated protectant framework before granting approval.

Farm-Level Takeaway: EPA’s approval gives citrus growers a new disease-fighting tool at a time when production losses remain severe.
Tony St. James, RFD News Markets Specialist
Related Stories
Pork producers warn that proposed definitions of “ultra-processed” food in guidelines from the “Make America Healthy Again” plan could negatively impact industry-standard bacon, sausage, and feed practices.
Concerns over Chronic Wasting Disease are fueling a long-standing legal battle between Minnesota regulators and deer farmers. The case could soon reach the state’s Supreme Court with broader implications for agriculture.
The National Cattlemen’s Beef Association (NCBA) and Public Lands Council (PLC) are praising the passage of a bill to delist gray wolves as an endangered species by the U.S. House last week.
In Minnesota, a legal and legislative battle has reached a tipping point. For over a decade, the state’s Department of Natural Resources (DNR) and the private deer-farming industry have been locked in a dispute over the management of Chronic Wasting Disease (CWD).
NRECA CEO Jim Matheson reacts to the U.S. House’s passage of the SPEED Act, which aims to streamline federal permitting for energy and infrastructure projects, and discusses its potential impact on rural communities.
USDA Undersecretary Luke Lindberg outlines the Farm Bridge Assistance Program and responds to calls from lawmakers and ag leaders for more assistance and expanded trade opportunities for farmers.

Tony St. James joined the RFD-TV talent team in August 2024, bringing a wealth of experience and a fresh perspective to RFD-TV and Rural Radio Channel 147 Sirius XM. In addition to his role as Market Specialist (collaborating with Scott “The Cow Guy” Shellady to provide radio and TV audiences with the latest updates on ag commodity markets), he hosts “Rural America Live” and serves as talent for trade shows.

LATEST STORIES BY THIS AUTHOR:

Plan for sharp, short-term volatility after unexpected outages; permanent closures rarely trigger major price spread disruptions.
Ethanol output softened, but underlying supply-and-demand trends indicate stable longer-term use despite short-term volatility in blending and exports.
Strong Farm Credit finances help cushion producers, but prolonged low crop margins could strain renewals in 2026.
USDA data confirms that U.S. agriculture remains overwhelmingly family-run despite structural shifts in scale and production, according to a new analystis by Farm Flavor.
Stronger sorghum genetics could enhance the resilience of bioenergy crops and broaden production options for growers in harsher climates.
Rising beef supplies and lower cattle prices, weaker hog markets, and softening dairy prices will shape producer margins heading into 2026.
Agriculture Shows
Hosted by Scott “The Cow Guy” Shellady and RFD News Markets Specialist Tony St. James, Commodity Talk delivers expert insight into the day’s ag commodity markets just before the CME opens. Only on RFD-TV and Rural Radio SiriusXM Channel 147.
A look at the news, weather and commodities headlines that drove agriculture markets in the past week.
Everything profits from prairie. Soil, air, water — and all kinds of life! Learn how you can improve your land with prairie restoration, cover crops and prairie strips, while growing your bottom line.
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.