100 Chapman Hall
University of California, Riverside
Riverside, CA 92521

(951) 827-2246






.Research Positions.

 Lab Members

MatthMatt Daughertyew Daugherty
Assistant Extension Specialist & Principal Investigator

matt.daugherty@ucr.edu | CV

B.A. Biological Sciences 1995
UC Davis

M.S. Biological Sciences 2000
Illinois State University

Ph.D. Integrative Biology 2006
UC Berkeley

Research Interest:
Matt is a member of UCR's Department of Entomology, where he studies applied population ecology and provides outreach on the ecology and management of invasive insects. In his free time he pretends to be a climber and backcountry skier.

Shyam Thomas

Shyam Thomas
Postdoctoral Fellow

shyam.thomas@ucr.edu | website

B.S. Biology 2000
St. Xavier's (Bombay)

M.S. Ecology 2006
Oklahoma State University

Ph.D. Ecology Evolutionary Biology 2013
Iowa State University

Research Interest:
Shyam is a spatial ecologist who enjoys the challenges of resolving real-world conservation problems by integrating spatial aspects of ecology with tools like GIS and spatial statistics. Much of his work to-date involves invasive species and their distribution patterns. More specifically, through his research he strives to understand and predict the distribution patterns of invasive species, and the potential risks they pose at the landscape level. In short, his research interests and experience fall at the interface of invasion biology, landscape ecology, and species distribution modeling.

Before joining UCR as a postdoc, Shyam worked on invasive wetland plant as part of his doctoral dissertation in ecology and evolutionary biology at Iowa State University. Shyam's current work at the Daugherty lab focuses on spatial analysis and distribution modeling of Asian citrus psyllid, an invasive insect pest that has spread rapidly across southern California, posing a serious threat to the commercial citrus industry.

Anuar Morales Rodriguez

Anuar Morales Rodriguez
Postdoctoral Fellow

anuar.moralesrodriguez@ucr.edu | CV

B.S. Biology 1995
Universidad Distrital "Francisco José de Caldas"

M.S. Entomology 2009
Cornell University

Ph.D. Plant Science 2014
Montana State University

Research Interest:
Current research interest is the management of the Asian citrus psyllid (Diaphorina citri) in commercial citrus groves of California. This includes design, implementation, and analysis of field releases of biological control agents (Tamarixia radiata) to estimate their spread and impact on psyllid populations.

Brett BaylesBrett Bayles
Postdoctoral Fellow
brett.r.bayles@gmail.com | CV

B.A. Biological Anthropology 2007
University of California, San Diego

M.P.H. Biosecurity 2010
Saint Louis University School of Public Health

Ph.D. Public Health Studies 2012
Saint Louis University School of Public Health

Research Interest:
Brett is an epidemiologist who is broadly interested in understanding the determinants of emerging infectious diseases, by seeking answers to questions like: How do human activities change the environment in ways that affect disease risk? What factors contribute to spatial non-randomness in the distribution of risk and how do these factors operate across multiple spatial scales? He utilizes a multidisciplinary approach to address these themes, leveraging spatial statistics, multivariate modeling, and qualitative and quantitative epidemiological methods.

Brett’s current research is focused on the spatial epidemiology of the urban invasive insect vector, the Asian citrus psyllid (ACP). Specifically, he is using spatial and inferential statistical techniques to understand the conditions that favor ACP establishment and spread, and to develop predictive models of disease dynamics. When not acting as a disease detective, you can find Brett running uncomfortably long distances, bouldering, or dabbling in the dynamic world of landscape astrophotography.

Nastaran TofangsaziNastaran Tofangsazi
Postdoctoral Fellow
nastaran.tofangsazi@ucr.edu | CV

B.S. Entomology 2007
Isfahan University of Technology

M.S. Entomology 2009
University of Tehran

Ph.D. Entomology 2014
University of Florida

Research Interest:
Nastaran's current research is focused on the integrated management of the Asian citrus psyllid (ACP). Nastaran's responsibilities include arthropod monitoring in citrus groves, coordinating field application (and pre- and post-treatment monitoring) of conventional and organic pesticides, studying nontarget effects of pesticides on natural enemies and secondary pest outbreaks, and interviewing growers and pest control advisors regarding prior psyllid control efforts.

Sarah O'Neill

Sarah O'Neill
Graduate Student Researcher

sdave001@ucr.edu | CV

B.S. Zoology 2011
California State Polytechnic University, Pomona

Ph.D. Entomology in Progress
University of California, Riverside

Research Interest:
Current research centers around plant and arthropod responses to an invasive plant, Brassica tournefortii (Sahara mustard). B. tournefortii invasion is associate with decreased biodiversity in both plants and arthropods. Further, as host to the invasive stinkbug, Bagrada hilaris, B. tournefortii may be imparting negative indirect effects on California native plants. These interactions may result in apparent competition, and potentially an invasional meltdown scenario, in which invasive species propagate synergistic impacts and promote additional invasions.

Manish PoudelManish Poudel
Graduate Student Researcher

B.S. Agriculture 2008
Tribhuvan University

M.S. Entomology 2013
University of Florida

Ph.D. Entomology in Progress
University of California, Riverside

Research Interest:
Research interests include integrated pest management and sustainable agriculture. Currently, Manish is studying integrated management strategies for the Asian citrus psyllid (Diaphorina citri).

Diane SotoDiane Soto
Staff Research Associate I


B.S. Entomology 2008
University of California, Riverside

Diane started working in the Daugherty Lab in September 2013. Currently, she is involved in research projects on glassy-winged sharpshooters (GWSS), Homalodisca vitripennis, and the Asian citrus psyllid (ACP), Diaphorina citri. She assists with the GWSS trap collections from the Temecula Valley, part of the Temecula Area-Wide Monitoring Program. She also prepares the GWSS newsletters that are sent out biweekly. Diane was involved with ACP monitoring and leaf sampling in residential and nursery settings as an extension activity to assess and improve pest management practices. Additionally, Diane manages the lab, assists with various research projects and maintains the role of Lab Safety Coordinator for the lab.


   Clarisa León
   Jessica Garcia
   James Phillips
   Seth Freitas
   Grace Hartt
   David Borjon
   Stephanie Grande

Lab Alumni
   Adam Zeilinger, Postdoctoral Fellow
   University of California, Berkeley

   Barrett Gruber, Assistant Professor
   University of Florida

   Anna Rathe, Adviser
   Ministry of Primary Industries
   Kim Hung, Graduate Student
   University of California, Riverside

one of our insect tents healthy vs. infected plant xyella bacteria infected leaf

Department of Entomology
University of California, Riverside
Riverside, CA 92521