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CISAC has compiled the list below of over 1,700 species known to be invasive in California or a potential threat for introduction to the state. Please use the comment form below to let us know about: taxa that should be added or removed; species information that you would change; and species that you think should be a high priority for having a scorecard completed (choose Review Scorecards to see the list of scorecards already drafted). Make sure to click Save. Previous comments are displayed at the bottom of the page.

Download Species List (.csv) (to open in a Spreadsheet program)
This data download is provided to aid in the review of the draft invasive species list. We discourage other use of this data until it has been revised and finalized.

Scientific Name Common Namesort icon Type Subtype Extent Risk of Introduction First Source
Avian Influenza A (H5N1) Avian influenza disease virus not present moderate CDFA report
Plasmodium relictum Avian malaria disease protist VALUE REQUIRED VALUE REQUIRED CIDRAP
Pseudacysta perseae avocado lace bug arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Stenoma catenifer avocado seed moth arthropod butterfly, moth not present high CDFA (reg. A)
Heilipus lauri avocado seed weevil arthropod beetle not present high CDFA (reg. A)
Copturus aguacatae avocado stem weevil arthropod beetle not present high USDA Plant/Pest
Trialeurodes floridensis avocado whitefly arthropod scale, aphid not present high CDFA (reg. A)
Cervus axis Axis deer vertebrate mammal limited n/a (already in CA) Cal Code 14:671
Acanthococcus azaleae azalea bark scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Crisicoccus azaleae azalea mealybug arthropod scale, aphid not present moderate CDFA (reg. B)
Potyvirus bcmv Azuki bean mosaic virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Emoia impar Azure-tailed skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Gypsophila paniculata baby's breath plant herbaceous limited n/a (already in CA) CDFA
Xanthomonas vasculorum Bacterial Blight of Sugarcane disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Pseudomonas avellanae Bacterial Canker of Hazelnut disease bacterium VALUE REQUIRED VALUE REQUIRED CACASA
Xanthomonas oryzae pv. oryzae Bacterial Leaf Blight of Rice/Select agent disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Xanthomonas oryzae pv. oryzicola Bacterial Leaf Streak of Rice/Select Agent disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Pseudomonas lignicola Bacterial Stain disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ralstonia solanacearum Bacterial wilt disease bacterium not present VALUE REQUIRED NAPPO
Baculovirus BMNV (PjNOB1) Baculoviral Midgut Gland Necrosis Virus (BMNV) of fish disease virus VALUE REQUIRED VALUE REQUIRED No list
Bagrada hilaris Bagrada bug arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Thyridopteryx ephemeraeformis bagworm arthropod butterfly, moth not present high CDFA (reg. A)
Babuvirus bbtv Banana Bunchy Top Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Thrips florum banana flower thrips arthropod thrips not present high CDFA (reg. A)
Pseudococcus elisae banana mealybug arthropod scale, aphid not present low CDFA (reg. A)
Opogona sacchari banana moth arthropod butterfly, moth not present high USDA Plant/Pest
Badnavirus bsv Banana Streak Virus disease virus VALUE REQUIRED VALUE REQUIRED No list
Nymphaea mexicana banana waterlily plant herbaceous limited n/a (already in CA) CDFA
Aegilops triuncialis barb goatgrass plant grass widespread n/a (already in CA) CDFA
Alectoris barbara Barbary partridge vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Salsola paulsenii barbwire Russian-thistle plant herbaceous widespread n/a (already in CA) CDFA
Anolis distichus Bark anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Bymovirus baymv Barley Yellow Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cytorhabdovirus bysmv Barley Yellow Striate Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Geopelia striata Barred dove vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Lampides boeticus bean butterfly arthropod butterfly, moth not present moderate CDFA (reg. A)
Ophiomyia phaseoli bean fly arthropod fly not present low CDFA (reg. A)
Begomovirus bgmv Bean Golden Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Geminivirus bgmv Bean Golden Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cerotoma trifurcata bean leaf beetle arthropod beetle not present high CDFA (reg. A)
Maruca testulalis bean pod borer arthropod butterfly, moth not present high CDFA (reg. A)
Maruca vitrata bean pod borer arthropod butterfly, moth not present high USDA Plant/Pest
Zabrotes spp. bean weevil arthropod beetle limited n/a (already in CA) CDFA (reg. B)
Beauveria spp. Beauveria bassiana (Balsamo) disease fungus widespread n/a (already in CA) National IS Info
Castor canadensis Beaver vertebrate mammal widespread n/a (already in CA) Cal Code 14:671
Benyovirus bnyvv Beet necrotic yellow vein virus (BNYVV) disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Begomovirus (var.) Begomovirus-caused diseases disease virus limited n/a (already in CA) APHIS OPIS
Bellardia trixago bellardia plant herbaceous limited n/a (already in CA) Cal-IPC list
Commelina benghalensis Benghal dayflower plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Oxalis pes-caprae Bermuda buttercup plant herbaceous widespread n/a (already in CA) Cal-IPC list
Cynodon dactylon bermudagrass plant grass widespread n/a (already in CA) CDFA
Begomovirus byvmv Bhendi Yellow Vein Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Acaena novae-zelandiae biddy-biddy plant herbaceous limited n/a (already in CA) CDFA
Vinca major big periwinkle plant herbaceous widespread n/a (already in CA) Cal-IPC list
Briza maxima big quackingrass plant grass widespread n/a (already in CA) Cal-IPC list
Hypophthalmichthys nobilis Bighead Carp vertebrate fish not present high Lacey Act
Centaurea macrocephala bighead knapweed plant herbaceous not present moderate WA Weed List
Fenusa pusilla birch leafminer arthropod bee, wasp not present high CDFA (reg. A)
Avipoxvirus Bird pox disease virus VALUE REQUIRED VALUE REQUIRED Chavarria NRDC
Brassica rapa birdsrape mustard plant herbaceous widespread n/a (already in CA) Cal-IPC list
Mikania micrantha bittervine plant herbaceous not present low USDA Plant/Pest
Acacia melanoxylon black acacia plant woody limited n/a (already in CA) Cal-IPC list
Mylopharyngodon piceus Black Carp vertebrate fish not present high Cal Code 14:671
Rhagoletis fausta black cherry fruit fly arthropod fly not present moderate CDFA (reg. A)
Parlatoria ziziphi black citrus scale arthropod scale, aphid not present high CDFA (reg. A)
Nepovirus brv Black Currant Reversion Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Francolinus francolinus Black francolin vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Hyoscyamus niger black henbane plant herbaceous limited n/a (already in CA) CDFA
Centaurea nigra black knapweed plant herbaceous limited n/a (already in CA) WA Weed List
Dickeya solani Black leg disease of potato disease bacterium not present moderate EPPO
Robinia pseudoacacia black locust plant woody limited n/a (already in CA) Cal-IPC list
Brassica nigra black mustard plant herbaceous widespread n/a (already in CA) Cal-IPC list
Solanum nigrum black nightshade plant herbaceous widespread n/a (already in CA) Weeds of CA
Ceratocystis fimbriata black rot disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ctenosaura similis Black spinytail iguana vertebrate reptile not present high Cal Code 14:671
Cryptocotyle lingua Black Spot parasite of fish invertebrate nematode VALUE REQUIRED VALUE REQUIRED No list
Ischnaspis longirostris black thread scale arthropod scale, aphid not present high CDFA (reg. A)
Conotrachelus retentus black walnut curculio arthropod beetle not present moderate CDFA (reg. A)
Phytoplasma bn Black wood disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Lonchura malacca Black-headed manikin vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Estrilda troglodytes Black-rumped waxbill vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Odocoileus hemionus Black-tailed deer vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Trioza tripunctata blackberry psyllid arthropod scale, aphid not present moderate CDFA (reg. A)
Closteroviridae byvd Blackberry Yellow Vein Disease disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Antilope cervicapra Blackbuck vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Alopecurus myosuroides blackgrass plant grass limited n/a (already in CA) WA Weed List
Lydorus pedicellatus Blacktip shipworm invertebrate aquatic mollusk, marine VALUE REQUIRED VALUE REQUIRED IMEAC
Silene latifolia ssp. alba bladder campion plant herbaceous limited n/a (already in CA) WA Weed List
Araujia sericifera bladderflower plant woody limited n/a (already in CA) CDFA
Silybum marianum blessed milkthistle plant herbaceous widespread n/a (already in CA) Cal-IPC list
Oospora oryzetorum Blight disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Pseudomonas celebensis Blood disease bacterium of banana disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Leptocybe invasa Blue gum chalcid arthropod bee, wasp not present high CDFA (reg. A)
Chorispora tenella blue mustard plant herbaceous limited n/a (already in CA) CDFA
Panicum antidotale blue panicgrass plant grass limited n/a (already in CA) CDFA
Ceratocystis tenella Blue Stain disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ophiostoma huntii Blue Stain disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ophiostoma piceae Blue stain disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ophiostoma piliferum Blue stain disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ceratocystis nothogafi Blue Stain Fungus disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS