Our Specialists

  • John C. Palumbo is currently an Extension Specialist/Professor with the Department of Entomology at the University of Arizona.   He has served as the state IPM Coordinator (1997-2002), and is currently the state IR-4 liaison.  He received  his PhD degree in Entomology from Oklahoma State University in 1989. He has statewide responsibilities for applied research and outreach activities related to insect pests of leafy vegetables and melon crops.  Primary roles at the UA have been to develop translational research programs to investigate the biology, ecology, and management of important pests associated with vegetable production in the southwestern U.S.   Primary interest is in examining the chemical management of insects and investigating techniques to cost-effectively integrate reduced risk insecticides in vegetable cropping systems.

  • Mike Matheron conducts problem-solving research involving the ecology and management of economically important fungal plant diseases of fruit and nut trees, vegetable and field crops in Arizona. Develops and deliver educational programming pertaining to plant diseases and their management to clientele in Arizona as well as a broader worldwide audience.

  • Barry Tickes is our Weed Specialists Area Agriculture Agent for Yuma, La Paz and Mohave Counties. Barry has worked for the University of Arizona Cooperative Extension for forty years directing his Research Program in all crops grown in Arizona and Vegetable Weed Control for the Low desert aeras. The Yuma Agricultural Center is located in one of the most productive Counties of the country which is considered the Winter Lettuce capital of the world. Barry's goal is to develop new technologies for weed management for Arizona growers.

  • Paul Brown currently operates of The Arizona Meteorological Network (AZMET), a near-real time agricultural weather information system. His research interests include crop water requirements, plant water relations, soil physics, salinity management and the impact of thermal stresses on biological systems. 

  • Bindu Poudel works with the Yuma County Cooperative Extension as our Plant Disease Diagnostician and Extension Plant Pathologist. Bindu operates the  New Plant Health Cliinc where all diagnostics are done for Arizona's Growers and PCAs.