UCANR Strategic Initiatives
University of California
UCANR Strategic Initiatives

Endemic and Invasive Pests and Diseases Research

Research Topics

The Endemic and Invasive Pests and Diseases Strategic Initiative has targeted three key areas of inquiry for preferred research and extension projects:

  • Exclusion of pests and pathogens
  • Emerging problems with pests and diseases
  • Integrated pest management

Current Research Projects


Managing the pest and disease risk of compostable wastes Managing the pest and disease risk of compostable wastes
Green waste recycling is a critical ecosystem service that conserves landfill space and soil quality. Regulatory changes for air quality are shifting green waste processing operations from composting, where materials are heated up, to chip and grind operations. During chipping and grinding, material...
Risk assessment, economic analysis, and extension education for Asian citrus Psyllid and huanglongbing disease management in California Risk assessment, economic analysis, and extension education for Asian citrus Psyllid and huanglongbing disease management in California
Asian citrus psyllid is a vector of a bacterial pathogen that causes an incurable and deadly disease of citrus called huanglongbing. This project will provide a web-based GIS view of urban and commercial citrus infestations of Asian citrus psyllid and infections of huanglongbing for California. The ...
Risk assessment, welfare analysis, and extension education for dairy calf respiratory disease management in California Risk assessment, welfare analysis, and extension education for dairy calf respiratory disease management in California
Bovine respiratory disease (BRD), also known as pneumonia, is the leading natural cause of death in U.S. beef and dairy cattle, causing the annual loss of more than one million animals and financial losses in excess of $700 million. This project will use surveys and interviews developed by veterinar...
Root-knot nematode species identification using mitochondrial DNA Root-knot nematode species identification using mitochondrial DNA
Root-knot nematodes are damaging pests on a wide range of California crops. In recent years, control options have been greatly reduced by increased restrictions on fumigant pesticides. Host resistance and crop rotation remain valuable tools for control, but, for their use, it is important to identif...
The development and validation of a rapid pre-screening tool for evaluating the invasive potential of ornamental plants in a given geographic region The development and validation of a rapid pre-screening tool for evaluating the invasive potential of ornamental plants in a given geographic region
This project will utilize the PlantRight Weed Risk Assessment tool to evaluate a plant’s invasive capabilities in a stated geographic region. The tool will be used to screen 2,600 plants on the WUCOLS III list which is used by landscape professionals to identify the irrigation requirements of orname...
Thousand cankers disease and the walnut twig beetle: a rapidly emerging invasive threat to walnuts in California Thousand cankers disease and the walnut twig beetle: a rapidly emerging invasive threat to walnuts in California
Thousand cankers disease is an emerging disease responsible for serious decline and death of ornamental eastern black walnut in Colorado and other western states, and the walnut species J. californica and J. hindsii in California. The fungal pathogen, Geosmithia morbida, that causes the disease is v...

Contact Information

For more information about current research projects, please contact the primary researcher listed below.

Compostable Wastes
David Michael Crohn
Associate Professor of Environmental Science
crohn@ucr.edu

Asian Citrus Psyllid
Elizabeth Grafton-Cardwell
Director of Lindcove REC & Research Entomologist
bethgc@uckac.edu

Bovine Respiratory Disease
Sharif Aly
Assistant Professor,
Veterinary Medicine

saly@ucdavis.edu

Root-knot Nematodes
Valerie Williamson
Nematologist and Professor
vmwilliamson@ucdavis.edu

Invasive Potential of Ornamentals
Dr. Dave Fujino
Director, California Center for Urban Horticulture
dwfujino@ucdavis.edu

Thousand Cankers Disease
Richard Bostock
Professor, Plant Pathologist
rmbostock@ucdavis.edu

Webmaster Email: mozbell@ucanr.edu