University of Arizona Cooperative Extension

08/17/2026

University of Arizona researchers are leading an effort to map and predict how New World screwworm might impact wildlife across the state and identify potential hotspots where the fly could take hold.

The effort will map areas where New World screwworm could emerge and help researchers understand how the fly could affect wildlife as well as livestock.

08/15/2026

Brown recluse spiders. They are quarter-sized, like to hide, and feared by many. But how much do you actually know about them?

Few spiders elicit as much fear as the brown recluse, but most people are far less likely to run into one or get bitten than they think, according to U of A researcher Matthew Cordes.

08/10/2026

Associate Professor Jerry Lopez explains why cyclospora is so hard to trace, how people can protect themselves, and what most people get wrong about it.

Associate professor Gerardo "Jerry" Lopez spoke about why cyclospora is so hard to trace, how people can protect themselves, and what most people get wrong about it.

08/07/2026

Arizona Farm Bureau just published a piece on how lessons learned in Texas should be applied to Arizona's response.

Texas’s first New World Screwworm outbreaks spread unpredictably, and that offers important lessons for Arizona.

08/05/2026

Wrytt Begay of Chinle is giving back to his community - and to local 4-H members - through his coffee shop and contributions to local youth.

07/31/2026

Leadership is built on connections. With 750+ alumni, Project CENTRL brings emerging leaders together to share perspectives, collaborate across industries, and tackle challenges facing rural Arizona.

More than 750 people have attended the yearlong Cooperative Extension leadership development program.

07/28/2026

From sudden, unexplained cattle deaths to emerging disease threats, Arizona’s Livestock Incident Response Team brings together veterinarians, Extension experts, and state and federal partners to investigate cases quickly and protect Arizona's livestock.

07/24/2026

University of Arizona Cooperative Extension Specialist Mike Crimmins, a climate science professor in the Department of Environmental Science, explains what El Niño is and how it might affect Arizona weather.

We are officially in the warming cycle of the El Niño-Southern Oscillation, an alternating heating and cooling of the equatorial Pacific Ocean surface.

07/23/2026

Stinknet is an invasive species spreading across Arizona. Although some may find its yellow flowers attractive, it is doing untold damage to our native ecosystems. Learn how to spot it and what you can do to prevent its spread.

Stinknet is an invasive species of wildflower that has been spreading across Arizona, and although some may find its yellow flowers attractive, it is doing untold damage to our native ecosystems.

07/21/2026

Head-to-tail inspections are essential to preventing the spread of New World screwworm and should be performed regularly. Our Livestock Inspection Guide shows you how to do an inspection and what to look for. Read the guide at https://bit.ly/4xulZDj.