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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 Name Typesort icon Subtype Extent Risk of Introduction First Source
Xanthomonas axonopodis pv. Dieffenbachiae Anthurium Blight disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Xanthomonas axonopodis vasculorum Sugarcane Gumming Disease disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Xanthomonas campestris pv vasculorum Sugarcane Gumming Disease disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
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
Xanthomonas populi Grapevine Infectious Necrosis Bacterium disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Xanthomonas populi Poplar Canker disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Xanthomonas vasculorum Bacterial Blight of Sugarcane disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Xylella fastidiosa CVC Citrus/Select Agent (citrus variegated chlorosis strain) disease bacterium not present low APHIS OPIS
Acremonium (Cephalosporium) diospyri Persimmon Wilt disease fungus not present moderate ForestPests.org
Aecidium hydrangeae-paniculatae alt: Puccinia glyceriae/ rust on Hydrangea spp. and Glyceria spp. disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Aecidium mori Mulberry Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Aphanomyces astaci Crayfish plague disease fungus widespread n/a (already in CA) ISSG Global InvS
Armillaria limonea Armillaria Root Disease disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Armillaria novae-zelandiae Armillaria Root Disease disease fungus not present low ForestPests.org
Batrachochytrium dendrobatidis chytrid frog fungi disease fungus limited n/a (already in CA) Amphibiaweb.org
Ceratocystis (Ophiostoma) ulmi Dutch elm disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ceratocystis fimbriata black rot disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ceratocystis moniliformis Cocoa ceratocystis wilt disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ceratocystis nothogafi Blue Stain Fungus disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ceratocystis novae-zelandiae wood-staining disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ceratocystis tenella Blue Stain disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cercospora pini-densiflorae Needle blight disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Chalara australis Vascular stain fungus disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Chrysomyxa abietis Spruce Needle Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Chrysomyxa himalensis Spruce Needle Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Chrysomyxa ledi var. rhododendri Rhododendron-spruce Needle Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cochliobolus miyabeanus Brown Spot of Rice disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Colletotrichum coffeanum Brown Blight disease fungus not present low USDA Plant/Pest
Coniothyrium spp. canker in elm disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cordyceps spp. Fungal Disease of Bees disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cornuvesica falcata New Zealand wood rot disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Crinipellis perniciosa Witches Broom Fungus in cocoa disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cronartium flaccidum Scotch Pine Blister Rust disease fungus not present low USDA Plant/Pest
Cronartium ribicola White pine blister rust disease fungus limited n/a (already in CA) ForestPests.org
Cryphonectria parasitica Chestnut blight disease fungus not present high ISSG Global InvS
Cyclaneusma minus Cyclaneusma Needle Cast disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Diaporthe mali Leaf, Branch, and Fruit Disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Discula destructiva Dogwood Anthracnose disease fungus not present moderate ISSG Global InvS
Elsinoe australis Sweet Orange Scab disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Elsinoe batatas sweet potato scab disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Erysiphe graminis Cereal Mildew disease fungus limited n/a (already in CA) APSNet
Erythricium salmonicolor Pink Disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Fusarium fuliginosporum Seeding Disease/seedling rot of Deodar cedar disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Fusarium oxysporum f.sp. fragariae Fusarium wilt of strawberry disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Fusarium oxysporum f. sp. vasinfectum Fusarium Wilt of Cotton disease fungus limited n/a (already in CA) National IS Info
Geosmithia sp. Thousand Cankers Disease Complex disease fungus unknown high National IS Info
Ganoderma mastoporum Artist Conk disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Geomyces sp. White-Nose Syndrome of bats disease fungus not present low National IS Info
Gremmeniella abietina Scleroderris Canker disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Guignardia citricarpa Citrus Black Spot disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Guignardia musae Freckle disease of Banana disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Guignardia piricola Leaf, Branch, and Fruit Disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Hemileia vastatrix Coffee Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ischnoderma rosulata Wood decay disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Junghuhnia vincta Corm dry rot disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Lachnellula willkommii Eurpoean larch canker disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Leptographium procerum Leptographium root disease disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Leptographium truncatum Root Disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Melampsora pinitorqua Twist Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Melanomma glumarum Glume Blotch disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Microcyclus ulei South American Leaf Blight disease fungus not present low APSNet
Monilinia fructigena Brown Rot of Fruit disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Moniliophthora roreri Watery Pod Rot disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Mycosphaerella dearnesii Brown Spot Needle Blight disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Mycosphaerella pini Red Band Needle Blight disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Oncobasidium theobromae Vascular Streak Die-back of cocoa disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Oospora oryzetorum Blight disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ophiostoma (Ceratocystis) ulmi Dutch elm disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ophiostoma huntii Blue Stain disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ophiostoma ips Blue Stain Fungus disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ophiostoma piceae Blue stain disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ophiostoma piceaperdum Laural Wilt disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ophiostoma piliferum Blue stain disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ophiostoma pluriannulatum Wood stain disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ophiostoma valdivianum Blue Stain of Beech disease fungus not present moderate ForestPathology
Peronosclerospora sacchari (philippinensis) Sugarcane Downy Mildew disease fungus not present low USDA Plant/Pest
Pestalotiopsis disseminata Parasitic Leaf Fungus disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Phacidiopycnis pseudotsuga Douglas Fir Canker disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Phaeoramularia angolensis Phaeoramularia Fruit and Leaf Spot disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Phakopsora meibomiae soybean rust disease fungus not present high APHIS OPIS
Phellinus noxius Brown root rot disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Phellinus senex Stem decay disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Phialophora cinerescens Phialophora wilt of carnations and strawberries disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Phlebia chrysocrea Wood decay disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Phoma tracheiphila Mal Secco disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Phomopsis vaccinii Phomopsis soft rot disease fungus not present moderate Mycologia
Phyllosticta colocasiophila Phyllosticta Leafspot disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Physoderma zeae-maydis Brown Spot of Corn disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Pseudocercospora timorensis Sweet Potato leaf spot disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Pseudopezicula tracheiphila Rotbrenner disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Puccinia mccleanii Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Puccinia striiformis Wheat stripe rust disease fungus widespread n/a (already in CA) National IS Info
Pucciniastrum actinidae Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Pucciniastrum areolatum Cherry-Spruce Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Pyricularia grisea Rice Blast disease fungus limited n/a (already in CA) APSNet
Rhacodiella vitis Chestnut rot disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Rhacodiella vitis Sterenberg fungus disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Rosellinia necratrix Dematophora Root Rot disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Sclerophthora rayssiae var. zeae Brown Stripe Downy Mildew of Maize disease fungus not present moderate APHIS OPIS