ca.gov

California Department of Food and Agriculture

Plant Health and Pest Prevention Services

Browse by Subject (Alphabetical)




Jump Links

SITE MAP


About Us


The California Department of Food and Agriculture’s Division of Plant Health's mission is to provide leadership of pest prevention and management programs that effectively protect California’s agriculture, horticulture, natural resources and urban environments from invasive plant pests.

  • Division Home Page
  • Annual Report: The California Department of Food and Agriculture’s (Department) Plant Health's mission is legislatively mandated and clearly articulated within the California Food and Agricultural Code. The California Legislature, enacting this mandate, also recognizes that pest prevention is uniquely positioned to protect California’s urban and natural environments as well as its agriculture.

Administration

Pest Exclusion (PE)

Responsible for keeping exotic plant pests out of the State and stopping or minimizing the spread of newly-arrived pests or diseases.

  • California Industrial Hemp Program: With assistance from the Industrial Hemp Advisory Board, CDFA will further develop the registration process, fee structure, regulations, and other administrative details as necessary to provide for the commercial production of industrial hemp in accordance with the California Industrial Hemp Farming Act (Assembly Bill 566, Chapter 398, Statutes of 2013).
  • Exterior Program: California Border Protection Stations Activities: Agricultural inspections on all private and commercial vehicles are conducted at sixteen border inspection stations located on major highways throughout the State (six at the Oregon border, five at the Nevada border, and five at the Arizona/Mexico border).
  • Interior Pest Exclusion: Interior Pest Exclusion personnel are responsible for enforcement of federal, foreign and domestic plant pest quarantines, as well as California state exterior and interior quarantines and county restrictions and ordinances.
    • Current Eradication/Quarantine Projects: Exotic fruit flies are of concern to the agriculture industry in California. The larval (maggot) stage of the Mediterranean Fruit Fly (Medfly), the Mexican Fruit Fly and the Oriental Fruit Fly can damage most of the fruits and vegetables grown in our state. The California Department of Food and Agriculture (CDFA) in concert with most of the County Agricultural Commissioners deploy and maintain over 63,000 detection traps statewide just for exotic fruit flies. Smuggled and/or illegally imported fruit is the most common pathway into California.
    • Statewide Sudden Oak Death Quarantine
  • Nursery, Seed and Quality Cotton Program: The mission of the Nursery Program element is to prevent the introduction and spread of agricultural pests through nursery stock and protect agriculture and the consumer against economic losses resulting from the sale of inferior, defective, or pest-infested nursery stock.
    • Quality Cotton: All cotton grown in the San Joaquin Valley Quality Cotton District must meet criteria established by the SJV Quality Cotton Law. As a result of the law, the District grows some of the highest quality cotton in the world.
    • Seed Services: Seed Law Enforcement. The goal of seed law enforcement is to protect seed consumers, including vegetable and field crop growers, as well as urban landscapers.
  • Export Status of California Specialty Crops: California exported over eight billion dollars of agricultural products in 2004, and is the top exporter in the nation for fruits, tree nuts, and many other specialty crops. With funding from the USDA, through the Technical Assistance of Specialty Crops Program (TASC), CDFA has created a database to track the status of pest list requests. The database is designed to facilitate communication among growers, commodity boards, CDFA, and USDA.

Pest Detection/Emergency Projects (PDEP)

Responsible for quickly detecting and eradicating serious exotic pests that may enter the state.

  • Exotic Pest Treatment: The California Department of Food and Agriculture (CDFA) conducts eradication projects when evidence of an infestation is found within the state. The purpose of an eradication project is to prevent the environmental and economic damage that would be caused by the establishment of these pests.
    • Pest Programs: There are many harmful insect pests and plant diseases that put California's environment and economy at risk. This web page presents a list of significant pests and diseases included in the Department's detection and eradication programs.
    • Pest Profiles (Target Pests and Diseases)
  • Preventative Release Program (Medfly): The purpose of the Program is to prevent the establishment of Medfly colonization by the continuous release of sterile Medflies into the environment.

Integrated Pest Control (IPC)

Responsible for protecting rangeland, waterways, crops and urban areas through the weed and vertebrate pest programs.

  • Curly Top Virus Program: The Curly Top Virus Control Program's (CTVCP) objective is to reduce the incidence of beet curly top virus (BCTV) infection in susceptible crops below a level of economic importance, through the use of integrated pest management techniques. BCTV is an extremely serious plant virus affecting several hundred varieties of ornamental and commercial crops in California.
  • Hydrilla: Hydrilla is a pernicious aquatic plant which infests natural and man-made aquatic ecosystems. The California Department of Food and Agriculture (CDFA) conducts eradication efforts in nine counties throughout California integrating various methods of control.
  • Pink Bollworm: The Pink Bollworm Program is probably the most successful and longest running yet least known area wide Integrated Pest Control (IPC) programs in the world. The Pink Bollworm Program uses an integrated pest control approach, relying on trapping, sterile release, crop destruction, and occasional pheromone treatments to keep infestations below economic impact levels. The program does not use pesticides, but rather uses sterile PBW moths to overwhelm these infestations.
  • Vertebrates: This project maintains a staff of biologists with expertise in regulatory weed and vertebrate pest eradication and suppression programs directed at vertebrate pests of limited distribution or that occupy specific habitats. The project also provides general supervision, technical assistance and training in vertebrate pest control to county agricultural commissioner personnel engaged in regulatory vertebrate pest control activities.
        IPC PROJECTS AND RESOURCES
  • Encycloweedia: Notes on identification, biology, and management of plants defined as noxious weeds by California law. The California Department of Food and Agriculture created and supports this site as a resource for public use. The University of California, Davis brought together and organized the information in the sheets.

Plant Pest Diagnostics (PPD)

Assists California’s agricultural export market by determining whether certain agricultural products can be certified as free of serious pests and diseases. This state-of-the-art diagnostic facility houses the California State Collection of Arthropods, a large collection (+ 1.5 million) of insects from around the world.

  • Botany Laboratory
    • CDFA Herbarium: The Botany lab was initially intended as a means of identifying current and potential weeds of agriculture. Its primary mission remains the identification of submitted specimens and first line assessment of their potential invasiveness. The botany lab consults extensively with state agricultural officers and extension agents and the USDA, as well as NGOs such as the California Exotic Plant Pest Council (CalEPPC), the California native Plant Society (CNPS) to identify the most threatening plant invaders.
  • Entomology Laboratory
    • California State Collection of Arthropods: The California State Collection of Arthropods (CSCA) is an international resource for research and identification of various groups of the Phylum Arthropoda, especially Insecta. The total number of prepared specimens exceeds 1.5 million, making this the 6th largest collection in California.
  • Nematology Laboratory
    • CDFA Nematode Collection: The nematode slide collection of the California Department of Food and Agriculture (CDFA Permanent Slide Reference Collection) includes 1,675 slides containing approximately 12,000 specimens in 60 genera and over 200 species. The collection comprises largely of specimens collected by nematologists from samples processed and analyzed in the Laboratory, as well as some permanently mounted specimens purchased from external sources. The collection is used mainly as in-house reference material to assist CDFA scientists in the identification of nematodes. No type material is maintained in the collection.
  • Plant Pathology Laboratory
    • CDFA Plant Pathogen Collections: The CDFA Plant Pathology Collections are maintained as several separate entities: 1) Phytophthora species isolate collection; 2) Herbarium of fungal plant disease specimens from California; 3) Isolate collection of fungal plant pathogens found in California; and, 4) Bacterial culture collection (formerly housed at University of California, Berekely). The collection is used mainly as in-house reference material to assist CDFA scientists in the identification of and research on plant pathogens. No type material is maintained in the collection.
  • Seed Botany Laboratory
    • CDFA Seed Herbarium: The CDA Seed and Fruit Collection (SFC) is the second largest collection of its kind in North America. Originally developed with representative species found in California agricultural situations, the collection has grown to include species from all over the world. As of August 2007, the CDA SFC contains approximately 40,000 specimens. The Seed Laboratory maintains a reference library devoted to seed science and seed technology. A searchable database containing over 11,000 entries of books, scientific journals, and literature files is available for use by staff and visitors to the laboratory.
  • Western Plant Diagnostic Network: The Western Plant Diagnostic Network (WPDN) is a regional member of the larger National Plant Diagnostic Network (NPDN). NPDN consists of five regional plant diagnostic centers located at Cornell University (NEPDN); Michigan State University (NCPDN); Kansas State University (GPDN); the University of Florida (SPDN); and the University of California, Davis in partnership with the California Department of Food and Agriculture, Sacramento (WPDN). Each regional center coordinates data gathering, diagnostic collaboration, and other activities of member land grant institutions, national agencies and state departments of agriculture.

 


A-Z INDEX



B | C | D | F | L | M | R | wedge Top of Index wedge


B

Bees

Brochures


B | C | D | F | L | M | R | wedge Top of Index wedge


C

CDFA Collections

  • California State Collection of Arthropods: The California State Collection of Arthropods (CSCA) is an international resource for research and identification of various groups of the Phylum Arthropoda, especially Insecta. The total number of prepared specimens exceeds 1.5 million, making this the 6th largest collection in California.
  • CDFA Herbarium: The Botany lab was initially intended as a means of identifying current and potential weeds of agriculture. Its primary mission remains the identification of submitted specimens and first line assessment of their potential invasiveness. The botany lab consults extensively with state agricultural officers and extension agents and the USDA, as well as NGOs such as the California Exotic Plant Pest Council (CalEPPC), the California native Plant Society (CNPS) to identify the most threatening plant invaders.
  • CDFA Seed Herbarium: The CDA Seed and Fruit Collection (SFC) is the second largest collection of its kind in North America. Originally developed with representative species found in California agricultural situations, the collection has grown to include species from all over the world. As of August 2007, the CDA SFC contains approximately 40,000 specimens. The Seed Laboratory maintains a reference library devoted to seed science and seed technology. A searchable database containing over 11,000 entries of books, scientific journals, and literature files is available for use by staff and visitors to the laboratory.
  • CDFA Nematode Collection: The nematode slide collection of the California Department of Food and Agriculture (CDFA Permanent Slide Reference Collection) includes 1,675 slides containing approximately 12,000 specimens in 60 genera and over 200 species. The collection comprises largely of specimens collected by nematologists from samples processed and analyzed in the Laboratory, as well as some permanently mounted specimens purchased from external sources. The collection is used mainly as in-house reference material to assist CDFA scientists in the identification of nematodes. No type material is maintained in the collection.
  • CDFA Plant Pathogen Collections: The CDFA Plant Pathology Collections are maintained as several separate entities: 1) Phytophthora species isolate collection; 2) Herbarium of fungal plant disease specimens from California; 3) Isolate collection of fungal plant pathogens found in California; and, 4) Bacterial culture collection (formerly housed at University of California, Berekely). The collection is used mainly as in-house reference material to assist CDFA scientists in the identification of and research on plant pathogens. No type material is maintained in the collection.

B | C | D | F | L | M | R | wedge Top of Index wedge


D

Databases

  • Encylcoweedia: Notes on identification, biology, and management of plants defined as noxious weeds by California law. The California Department of Food and Agriculture created and supports this site as a resource for public use. The University of California, Davis brought together and organized the information in the sheets.
  • Export Status of California Specialty Crops: California exported over eight billion dollars of agricultural products in 2004, and is the top exporter in the nation for fruits, tree nuts, and many other specialty crops. With funding from the USDA, through the Technical Assistance of Specialty Crops Program (TASC), CDFA has created a database to track the status of pest list requests. The database is designed to facilitate communication among growers, commodity boards, CDFA, and USDA.
  • The United States National Collection of Scale Insect Photographs: This library of scale insect photographs represents over 1,400 images taken in the last 40 years.

B | C | D | F | L | M | R | wedge Top of Index wedge


F

Fact Sheets


B | C | D | F | L | M | R | wedge Top of Index wedge


L

Laboratories

  • Botany Laboratory: The Botany Laboratory provides plant identification services, noxious weed distribution information, and biological support data to the County Agricultural Commissioners' offices, the general public, CDFA programs and various other State and Federal agencies. These activities function to help prevent the introduction and spread of serious weed pests and to identify host plants of insects, plant diseases, and plant parasitic nematodes. Plant identification is an integral part of weed pest exclusion, detection, control, and eradication.
  • Entomology Laboratory: This laboratory is the primary support unit for the state's eradication, control, survey, and biological programs involving injurious pests, including (but certainly not limited to) exotic fruit flies (Mediterranean, Oriental, Mexican, Guava, West Indian, Carribean, Olive, Melon, Western cherry fruit flies, and apple maggot), leaf-miner and other flies, Glassy-winged sharpshooter and other leaf- and planthoppers, Africanized honey bee, Red Imported Fire Ants, Asian longhorn beetle and other wood-boring beetles, sweet potato weevil, cotton boll weevil, Japanese beetle, seven-spotted lady beetle, European and Asian gypsy moths, European corn borer, European pine shoot moth, pink bollworm, Pink Hibiscus mealybug, sweet potato whitefly, giant whitefly, nesting whitefly, ash whitefly, green shield scale, euonymus scale, magnolia white scale, and numerous other scales, mealybugs, and whiteflies, bluegum psyllid, ticks, mites, spiders, snails, and many other domestic and exotic pests.
  • Nematology Laboratory: The Nematology Laboratory provides diagnostic support for the protection of California’s agricultural industry against economically important plant parasitic nematodes associated with plant disease. The State’s agricultural industry could lose over $600 million annually in crop losses if certain plant parasitic nematodes not known, or of limited occurrence in California would become widespread within the State.
  • Plant Pathology Laboratory: Diagnostic services provided by the Plant Pathology Laboratory included: diagnosis of samples submitted by pest prevention programs by state, county, and federal agencies, as well as academic and public sources; diagnosis of samples submitted by the Fruit and Nut Tree and Grapevine Improvement Advisory Board to be tested for Prunus necrotic ringspot and prune dwarf viruses using enzyme-linked Immunosorbent assay (ELISA); diagnosis of grapevine samples submitted by the Grapevine Registration and Certification Program for ELISA testing for the presence of grapevine fanleaf and leaf roll viruses; diagnosis of plant samples specifically for Piece’s Disease, as part of the Statewide Glassy Wing Sharpshooter and Pierce’s Disease Project; diagnosis of samples as part of Homeland Security’s National Plant Diagnostic Network (NPDN); diagnosis of Seed samples examined and tested to determine phytosanitary seed health compliance prior to export; diagnosis of miscellaneous plant samples submitted by individual farmers, pest control advisors, U.C. cooperative extension agents, nurserymen, arborists, homeowners, government municipalities, educational institutions, and others; and, diagnosis of samples collected for various plant disease surveys including Plum Pox, Sudden Oak Death, Citrus Canker, Rice Diseases, and others.
  • Seed Botany Laboratory: The Seed Laboratory identifies and evaluates seed samples and other plant propagules submitted by Department representatives (primarily through the Pest Exclusion Branch), seed producers and distributors, commercial and private laboratories, other state and federal agencies, academic institutions, and private citizens. The laboratory is considered an impartial authority and the information provided is often utilized in resolving contract disputes among seed trade parties.
  • Western Plant Diagnostic Network: The Western Plant Diagnostic Network (WPDN) is a regional member of the larger National Plant Diagnostic Network (NPDN). NPDN consists of five regional plant diagnostic centers located at Cornell University (NEPDN); Michigan State University (NCPDN); Kansas State University (GPDN); the University of Florida (SPDN); and the University of California, Davis in partnership with the California Department of Food and Agriculture, Sacramento (WPDN). Each regional center coordinates data gathering, diagnostic collaboration, and other activities of member land grant institutions, national agencies and state departments of agriculture.

B | C | D | F | L | M | R | wedge Top of Index wedge


M

Manuals

  • Agricultural Commodity Identification Aid Manual: This pictorial index was created as an aid to assist inspectors with the identification of commodities not normally encountered in California. We stress the word "aid," as final determinations should be made by a qualified plant biologist or botanist.
  • Exotic Fruit Fly Regulatory Response Manual: This manual will continue to evolve over time as new crop trends develop, additional agricultural pest control techniques are adopted, and regulatory priorities change. Periodic updates of each section will be issued as revisions are made.
  • Nursery Inspection Procedures Manual: California laws and regulations pertaining to nursery stock. This is the on-line version of the Nursery Inspection Procedures Manual; the print version of this regulatory guide is being distributed to California's county, state and federal cooperators for their review and comment.
  • Plant Quarantine Manual: This is the online version of the Plant Quarantine Manual (PQM), prepared by the Pest Exclusion Branch of CDFA's Plant Health and Pest Prevention Services Division. The full text of the PQM is posted to this site for viewing, and summarizes current federal, state and county regulations and restrictions that apply to plant material entering California and its counties. The quarantine regulatory information posted on this site is identical to that contained in the printed version of the manual, and either can be utilized for reference.
  • USDA/PPQ Manuals: This web site contains Plant Protection and Quarantine (PPQ) manuals in electronic format. The Manuals are categorized into three areas: Domestic Programs, Port Programs, and Emergency Programs.

B | C | D | F | L | M | R | wedge Top of Index wedge


R

Reports

  • Annual Report: The California Department of Food and Agriculture’s (Department) Plant Health's mission is legislatively mandated and clearly articulated within the California Food and Agricultural Code. The California Legislature, enacting this mandate, also recognizes that pest prevention is uniquely positioned to protect California’s urban and natural environments as well as its agriculture. It specifically instructs the Department to protect ornamental and native plantings as well as agricultural crops from the harm caused by exotic pest invasions.
  • LBAM Environmental Impact Report (PEIR) - Notice is hereby given that a Draft Programmatic Environmental Impact Report (PEIR) has been prepared by the California Department of Food and Agriculture (CDFA) as Lead Agency under the California Environmental Quality Act (CEQA). The Draft PEIR addresses the potential environmental impacts that would result from implementation of alternatives for the eradication of the light brown apple moth (LBAM) (Epiphyas postvittana).
  • 2008-2009 California Plant Pest and Disease report (Volume 25) (PPDC)
  • 2010 PPDC Annual Report (PPDC)
  • Statewide Plant Pest Prevention and Management Program Environmental Impact Report (EIR): CDFA has prepared this Final Program Environmental Impact Report (PEIR) to provide an up-to-date, transparent, and comprehensive evaluation of CDFA's activities. The PEIR will serve as an overarching CEQA framework for efficient and proactive implementation of Statewide Program activities. As part of this, CDFA plans to implement a CEQA Tiering Strategy, a checklist tool and guide for project-level CEQA compliance and integration of new pest programs and management techniques. The Statewide Program activities as they are described in this PEIR are referred to as the "Proposed Program."
  • 2006 Directory: Nurserymen and Others Licensed to Sell Nursery Stock in California: This directory lists all the licensed nurseries and nursery stock dealers in California. Copies of this Directory are available to California licensed nurserymen at a cost of $5.00 per copy. Persons other than licensees may obtain a copy at a cost of $25.00. Both prices include handling and mailing costs.