Meet Jorge Covarrubias: The 17-year-old who built a smart bandage that can detect when Arizona’s giant saguaro cactus is dying

Jorge Covarrubias, a 17-year-old senior at Harvest Preparatory Academy in Yuma, Arizona, has developed a smart bandage designed to detect bacterial necrosis in saguaro cacti before the disease causes extensive damage. His project, called KáktosPatch, combines a biodegradable bandage with a smartphone application that interprets colour changes produced by the material. Covarrubias became interested in the problem after participating in an ecology field trip with friends conducting research, which sparked his interest in studying the Sonoran Desert and its iconic saguaro cacti. The project has already received major recognition at the regional level: Covarrubias won first place in Plant Science at the Southern Arizona Regional Science and Engineering Fair and received Best of Show at the Yuma County Science and Engineering Expo. His work subsequently earned him a place at the 2026 Regeneron International Science and Engineering Fair, where he is competing alongside students from around the world.According to SARSEF's 2026 ISEF finalists listing, Covarrubias developed KáktosPatch as a biodegradable system intended to help detect bacterial necrosis in saguaros. The concept uses a bandage placed on the cactus and a colour-changing response that can provide information about the plant's condition. KAWC's report on the Yuma students competing at the international science fair reports that the accompanying mobile application reads those colour changes, allowing the system to provide an indication of possible infection.The approach is designed around a simple idea: make a change occurring at the plant's surface easier to detect and interpret without immediately requiring specialised laboratory equipment. At this stage, however, KáktosPatch should be described as a student-developed research prototype, rather than an established diagnostic device.Bacterial necrosis can cause rotting in saguaro tissue and can become increasingly difficult to address as the damage progresses. Detecting changes earlier could therefore be valuable to people caring for individual cacti, particularly in nurseries, landscaped areas and conservation settings where plants are monitored regularly.For Covarrubias, the project also connects a technological solution with a species that is deeply associated with the Sonoran Desert. Saguaros can live for many decades and form an important part of the desert ecosystem, providing food and shelter for wildlife. A tool capable of making signs of disease easier to identify could potentially help caretakers intervene before damage becomes extensive, although further testing would be needed to establish how accurately the system detects bacterial necrosis across different plants and conditions.The potential significance of Covarrubias's project lies in its combination of biodegradable materials, colour-based detection and smartphone technology. If further research validates the system, a low-cost tool of this kind could eventually give people caring for saguaros another way to monitor plants without depending entirely on laboratory analysis.But the distinction between potential and proven performance matters. The available sources establish what Covarrubias has designed and the recognition his project has received; they do not establish that KáktosPatch can reliably diagnose every case of bacterial necrosis or prevent infected saguaros from dying. His first-place Plant Science finish at SARSEF and Best of Show at the Yuma County Science and Engineering Expo nevertheless demonstrate that the project has already stood out in competitive scientific evaluation. His selection for ISEF 2026 now gives him an opportunity to present and further develop the research on an international stage.