Student Information  

Photo of Harry Scott SmithHarry Scott Smith Scholarship Fund
If biological control is to continue in Southern California we need to continue recruiting and training high quality students. To do this, we need to be able to provide substantial financial support, and the Harry S. Smith Scholarship is one way to attract excellent students to UC Riverside. More Information...

UCR Student Graduate Programs

UCR and CISR are committed to continuing education in invasive species. The Department of Entomology and the Department of Plant Pathology and Microbiology are just two programs that help train and develop new students to combat the invasive species of tomorrow.
Department of Entomology Graduate Program

Department of Plant Pathology and Microbiology
FAQ for the Entomology Graduate Program

Researchers Associated with CISR

CISR is comprised of top University of California professors and researchers, all are the leading experts in their fields. They provide excellent insight into the invasive species on this site and in their own research labs. They blaze the trail in cutting edge research on Invasive Species.  Read More...

Related Websites

UC Integrated Pest Management

Integrated pest management (IPM) is an ecosystem-based strategy that focuses on long-term prevention of pest damage through a combination of techniques such as biological control, habitat manipulation, modification of cultural practices, and use of resistant varieties.

USDA Invasive Species Information Center

The National Invasive Species Information Center (NISIC) was established in 2005 at the National Agricultural Library to meet the information needs of users such as the National Invasive Species Council. The Web site serves as a reference gateway to information, organizations, and services about invasive species.

USGS Invasive Species Program

Working collaboratively with partner agencies and organizations, USGS provides the tools, technology, and information supporting efforts to prevent, contain, control, and manage invasive species nationwide.


The overall objective of Invasive.org is to provide an accessible and easy to use archive of high quality images related to invasive and exotic species, with particular emphasis on educational applications.

Invasive Species of California

With six new invasive species establishing themselves in California each year, it is vital for CISR and other organizations to study these invasive species to prevent further damage. Here you can find an overview of some of the invasive species currently undergoing research. Click here for more invasive species...

gwssThe Glassy-Winged Sharpshooter

Due to heavy feeding on ornamental trees, this pest produces copious amounts of watery excreta that rains down on anything, or anyone below.

Avocado Thrips

Avocado Thrips

Larvae of the Avocado Thrips damages leaves, scar young fruit and even transform the skin to a brown mummified surface.


Quagga Mussels

Quagga and zebra mussels clog water intake structures (pipes and screens), which increases maintenance costs for water treatment and power plants.

Goldspotted Oak Borer

The Goldspotted Oak Borer

Goldspotted Oak Borer larvae kill patches and strips of phloem and cambium, resulting in limb and branch die back and, eventually, tree death.

Asian Tiger MosquitoThe Asian Tiger Mosquito

The Asian tiger mosquito is an aggressive biter that feeds primarily during the day and has a broad host range including: man.



Diaprepes Root Weevil

Adult beetles will feed on leaves causing a characteristic notching pattern. Larval feeding will eventually girdle the crown area of the root system, killing the plant.

Fruit Fly

Mediterranean Fruit Fly or Medfly

Several females may attack a single fruit, producing up to 100 maggots underneath the skin of the fruit. The maggots then tunnel into the fruit.


Light Brown Apple Moth

LBAM larvae feed on leaves and buds reducing photosynthetic rate, deforming growth patterns, which leads to general plant weakness and disfigurement.

Mobile Apps, for Invasive Species on the go

What's Invasive AppWhat's Invasive (Free)

[iPhone] [Android] The What's Invasive! app displays local lists of top invasive plants and/or animals (with images and short descriptions to remind you of what they look like) that have been identified by National Park Service or other invasive management authorities.

Calflora App

Calflora Observer (Free)

[iPhone] [Android] The Observer allows you to quickly report wild plant occurrences and makes it easy to report the species name, date, and location of over 10,000 California native and non-native plant taxa. You can also add a photograph to a report, and share it with others later to confirm identification. 

What are invasive species?

Invasive species, alien species, exotic pests, bio-pollution, non-indigenous species, or invasive alien species, are common names that categorize non-native animals, microbes, diseases, or plants that are pests. These pests are not native in areas in which they cause problems and they are considered "invasive" because they invade new areas and the resulting invasion causes economic or environmental problems. Read more invasive species FAQ's

Where do invasive species come from?

Invasive species are often native to a country or area different to that in which they have invaded and are now causing problems. On average, California acquires around six invasive species per year, this is a rate of one new species every 60 days. Hawaii and Florida acquire new species at a round of around 15 per year. Read more invasive species FAQ's

Why are invasive species a problem?

Invasive species cause a wide diversity of economic and environmental problems which almost always arise from uncontrolled population growth and spread in the area which has been invaded. Economic problems arise from the costs required to control invasive species, to reduce their rate of spread, or the need to inspect agricultural products that are being exported that may accidentally move the invasive pest to a new area. Read more invasive species FAQ's



More Information

General Campus Information

University of California, Riverside
900 University Ave.
Riverside, CA 92521
Tel: (951) 827-1012

Career OpportunitiesUCR Libraries
Campus StatusDirections to UCR

CISR Information

Center for Invasive Species Research
Chapman Hall, Room 108A

Mark Hoddle
Director of the Center for Invasive Species Research
Tel: (951) 827-4714
E-mail: cisr@ucr.edu

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