{"id":1958,"date":"2016-05-13T16:14:40","date_gmt":"2016-05-13T23:14:40","guid":{"rendered":"http:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1958"},"modified":"2025-09-26T10:46:24","modified_gmt":"2025-09-26T17:46:24","slug":"weeds","status":"publish","type":"post","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1958","title":{"rendered":"Weeds"},"content":{"rendered":"\r\n

 <\/p>\r\n\r\n\r\n\r\n

Weeds are simply an unwanted plant in the wrong place, at the right time.\u00a0 The weeds can directly and indirectly impact agricultural crops and are just as costly to the environment as any other unwanted species.<\/p>\r\n\r\n

Weeds are simply an unwanted plant in the wrong place, at the right time.\u00a0 The weeds can directly and indirectly impact agricultural crops and are just as costly to the environment as any other unwanted species.<\/p>\r\n

PEST RATING PROPOSAL:<\/h3>\r\n

\u21d2<\/span> WEEDS:\u00a0<\/h5>\r\n

Cyperus esculentus,<\/em> yellow nutsedge<\/a>
Current Pest Rating: Q, W
Seed Rating: Restricted
Proposed Pest Rating: C\u00a0<\/strong>
Comment Period: 09\/26\/2025 through 11\/10\/2025<\/span><\/p>\r\n

Cyperus rotundus, <\/em>purple nutsedge<\/a>
Current Pest Rating: Q
Seed Rating: Restricted
Proposed Pest Rating: C\u00a0<\/strong>
Comment Period: 09\/26\/2025 through 11\/10\/2025 <\/span><\/p>\r\n

Mentha pulegium <\/em>L., pennyroyal<\/a><\/span>
<\/span>Current Pest Rating: Q
Seed Rating: N\/A
Proposed Pest Rating: C<\/strong>
Comment Period: 09\/26\/2025 through 11\/10\/2025<\/span><\/p>\r\n

 <\/p>\r\n

PEST RATINGS:\u00a0<\/h3>\r\n

Ageratina adenophor<\/em>a (Spreng.) R. M. King and H. Rob.: croftonweed, thoroughwort, sticky snakerootAgeratina adenophora <\/em>(Spreng.) R. M. King and H. Rob.: croftonweed, thoroughwort, sticky snakeroot<\/a>
Pest Rating: B<\/strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\r\n

Algerian sea lavendar: Limonium ramosissimum<\/i><\/a>
Pest Rating: B<\/strong><\/p>\r\n

Alliaria petiolata\u00a0<\/em>(M. Bieb.) Cavara & Grande, garlic mustard, hedge-garlic<\/a>
<\/strong>Pest Rating: A
<\/strong><\/p>\r\n

Alligatorweed\u00a0|\u00a0\u00a0Alternanthera\u00a0philoxeroides\u00a0\u00a0<\/em><\/a>
Pest Rating:\u00a0A | Proposed Seed Rating: R<\/strong><\/p>\r\n

American eelgrass | Vallisneria americana<\/em> Michx.<\/a>
Pest Rating: D | Seed Rating: Not Rated<\/strong><\/p>\r\n

Achnatherum brachychaetum <\/em>(Godr.) Barkworth (punagrass)<\/a>
Pest Rating: B | Seed Rating: P<\/strong><\/p>\r\n

Asclepias curassavica<\/em> L.: Tropical milkweed; bloodflower milkweed; Mexican milkweed; false ipecac<\/a>
<\/strong>Pest Rating: B<\/strong><\/p>\r\n

Baby’s Breath | Gypsophila paniculata<\/em> L.<\/a>
Pest Rating: B |\u00a0 Seed Rating: Not Rated<\/strong><\/p>\r\n

Balloon Plant |\u00a0 <\/strong>Asclepias physocarpa<\/em><\/a>
Pest Rating: C | Seed Rating: Not Rated<\/strong><\/p>\r\n

Banana waterlily: Nymphaea mexicana<\/i>\u00a0<\/a>
Pest Rating: C<\/strong><\/p>\r\n

Barbwire Russian Thistle | \u00a0Salsola gobicola<\/em><\/a>
Pest Rating : B | Proposed \u00a0Seed Rating: R<\/strong><\/p>\r\n

Bassia scoparia<\/em> (L.) A.J. Scott, kochia, Mexican fireweed, burningbush, summer cypress\u00a0<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0
Pest Rating: C<\/strong><\/p>\r\n

Bearded creeper |\u00a0Crupina vulgaris<\/em> Pers. ex. Cass.<\/a>
Pest Rating: A | Proposed \u00a0Seed Rating: P<\/strong><\/p>\r\n

Bermuda grass |\u00a0Cynodon dactylon<\/em><\/a>
\u00a0<\/strong>Pest\u00a0Rating: \u00a0D \u00a0| \u00a0Proposed \u00a0Seed Rating: \u00a0None<\/strong><\/strong><\/p>\r\n

Bitou bush | Chrysanthemoides monilifera<\/em><\/a>
Pest\u00a0Rating: A \u00a0| \u00a0Proposed \u00a0Seed Rating: \u00a0R<\/strong><\/strong><\/p>\r\n

Blue panicgrass: Panicum antidotale<\/i>\u00a0<\/a>
Pest Rating: C<\/strong><\/p>\r\n

Branched broomrape | Orobanche ramosa<\/em> L.<\/a>
Pest Rating: A | Proposed Seed Rating: P<\/strong><\/p>\r\n

Buffel grass | Pennisetum ciliare<\/em><\/a>
Pest\u00a0Rating: D \u00a0| \u00a0Proposed \u00a0Seed Rating: \u00a0None<\/strong><\/strong><\/strong><\/strong><\/p>\r\n

Capeweed <\/a> |<\/a> Arctotheca calendula<\/em> (L.) Levyns<\/a>
Pest Rating: A | \u00a0Proposed \u00a0Seed Rating: P<\/strong><\/p>\r\n

Carduus pycnocephalus<\/em>: Italian thistle<\/a>
Pest Rating: C | Seed Rating: R<\/strong><\/p>\r\n

Cenchrus clandestinus (Hochst. ex Chiov.) Marrone: kikuyugrass<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Pest Rating: C | Proposed Rating: C <\/strong><\/p>\r\n

Cenchrus echinatus <\/em>L. (southern sandbur), C. spinifex Cav. <\/em>(coast sandbur; field sandbur), C. longispinus <\/em>(Hack.) Fernald<\/em> (mat sandbur; longspine sandbur) Poales; Poaceae tribe Paniceae<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Pest Rating: B<\/strong><\/p>\r\n

Chamberbitter: Phyllanthus urinaria<\/em> L.<\/a>
Pest Rating: C | \u00a0Proposed \u00a0Seed Rating: R<\/strong><\/p>\r\n

Cheatgrass | Bromus tectorum<\/em><\/a>
Pest Rating: C \u00a0| \u00a0Proposed \u00a0<\/strong>Seed Rating: None<\/strong><\/strong><\/strong><\/strong><\/p>\r\n

Coco-Yam, Elephant Ear or Taro \u00a0| \u00a0<\/a>Colocasia esculenta<\/a><\/em>
Pest Rating: D |\u00a0 Seed Rating: Not Rated<\/strong>
<\/em><\/p>\r\n

Common reed (Phragmites australis<\/em>):<\/a><\/p>\r\n

Phragmites australis<\/em> <\/strong>cf. subsp. altissimus<\/em><\/strong> (non-native<\/span><\/strong>)
Pest Rating: C \u00a0| Proposed \u00a0Seed Rating: R<\/strong><\/p>\r\n

Phragmites australis<\/em> <\/strong>subsp. americanus<\/em><\/strong> (native<\/span><\/strong>)
Pest Rating: D | Proposed \u00a0Seed Rating: None<\/strong><\/p>\r\n

Cyperus esculentus, <\/em>yellow nutsedge<\/a>
Pest Rating: C | Seed Rating: Restricted<\/strong><\/p>\r\n

Cyperus rotundus, <\/em>purple nutsedge<\/a>
Pest Rating: C | Seed Rating: Restricted<\/strong><\/p>\r\n

Dagger-flower | Mantisalca salmantica<\/em> (L.) Briq. & Cavill.\u00a0<\/a>
Synonym: Centaurea salmantica<\/em> L.
Pest Rating: A | Proposed \u00a0Seed Rating: P<\/strong><\/strong><\/strong><\/strong><\/p>\r\n

Desert knapweed: Volutaria tubuliflora<\/em><\/a>
Pest Rating: A | Seed Rating: R<\/strong>\u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\r\n

Dwarf poinsettia: <\/a>Euphorbia cyathophora <\/em><\/a>
Pest Rating: C\u00a0 \u00a0<\/strong><\/p>\r\n

Egyptian broomrape |\u00a0Orobanche aegyptiaca<\/em> Pers.<\/a>
<\/span><\/span>Pest Rating: \u00a0A \u00a0| Proposed \u00a0Seed Rating: \u00a0P<\/strong><\/strong><\/strong><\/p>\r\n

Eichhornia crassipes <\/i>(Mart.) Solms, water hyacinth, common water hyacinth, floating water hyacinth<\/a>
<\/i>Synonyms: Pontederia crassipes<\/em> Mart., Eichhornia speciosa<\/em> Kunth
Pest Rating: C<\/strong><\/p>\r\n

English Ivy, Irish Ivy & Algerian Ivy: Hedera<\/em> spp.\u00a0<\/a>
Pest Rating: None\u00a0<\/strong><\/p>\r\n

Euphorbia helioscopia <\/em>L.: sun spurge<\/a>
Pest Rating: B<\/strong><\/p>\r\n

European Frogbit | Hydrocharis morsus-ranae<\/em> L.<\/a>
Pest Rating: A | \u00a0Proposed \u00a0Seed Rating: P<\/strong><\/p>\r\n

European Mistletoe |\u00a0 Viscum album<\/em> L<\/a>
Pest Rating: A |\u00a0Proposed Seed Rating: R<\/strong><\/p>\r\n

European sea lavendar: Limonium duriusculum<\/em>\u00a0<\/a>
Pest Rating: B\u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\r\n

False Pickerel Weed | Monochoria vaginalis <\/em>(Burm. f.) C. Presl ex Kunth<\/a>
<\/strong>Pest Rating: A |\u00a0\u00a0<\/strong>Proposed Seed Rating: R<\/strong><\/p>\r\n

False Yellowhead |\u00a0Dittrichia viscosa<\/em> (L.) Greuter<\/a>
Pest Rating: A | \u00a0Proposed \u00a0Seed Rating: P<\/strong><\/p>\r\n

Field Bindweed | Convolvulus arvensis<\/em> L.<\/a>
Pest Rating: C | Proposed Seed Rating: R<\/strong><\/p>\r\n

Flowering-rush | <\/a>Butomus umbellatus<\/a><\/em>
Pest Rating: \u00a0B \u00a0| \u00a0Proposed \u00a0Seed Rating: \u00a0R<\/strong>
<\/em><\/p>\r\n

French broom: Genista monspessulana<\/i>\u00a0<\/a>
Pest Rating: C<\/strong><\/p>\r\n

Giant chickweed: Myosoton aquaticum<\/i>\u00a0<\/a>
Pest Rating: C<\/strong><\/p>\r\n

Giant Hogweed | Heracleum mantegazzianum<\/em><\/a>
Pest Rating : A | \u00a0Proposed \u00a0Seed Rating: P<\/strong><\/p>\r\n

Giant Knotweeds<\/a>:
Fallopia japonica<\/em>, F. sachalinensis<\/em>,
& F. X bohemica<\/em>
Pest Rating: A | Proposed Seed Rating: R<\/strong>
<\/span><\/p>\r\n

Giant Ragweed | Ambrosia trifida<\/em> L.<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Giant Reed\u00a0|\u00a0\u00a0Arundo donax<\/em><\/a>
Pest Rating:\u00a0B | Proposed Seed Rating: R<\/strong><\/p>\r\n

Goatsrue | Galega officinalis<\/em><\/a>
Pest Rating: \u00a0A \u00a0| Proposed \u00a0Seed Rating: \u00a0P<\/strong><\/strong><\/strong><\/strong><\/strong><\/p>\r\n

Graceful Spurge | Euphorbia hypericifolia<\/em> L.<\/a>
Pest Rating: A | Seed Rating: Not Rated <\/strong><\/p>\r\n

Halogeton glomeratus<\/em> (M. Bieb.) Ledeb., halogeton, saltlover<\/a> \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Pest <\/strong>Rating: B <\/strong><\/p>\r\n

Hydrilla verticillata<\/em> (L. f.) Royle, hydrilla\u00a0<\/a> \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Pest Rating: A<\/strong><\/p>\r\n

Hypericum canariense<\/em> L., Canary Island St. Johnswort<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Hypericum perforatum <\/i>L., Klamathweed, common St. Johnswort <\/a>
Pest Rating: C<\/strong><\/p>\r\n

Heartleaf nightshade: Solanum cardiophyllum<\/i><\/a>
Pest Rating: C<\/strong><\/p>\r\n

Indian swampweed | Hygrophila polysperma<\/em> (Roxb.) T. Anderson<\/a>
Pest Rating: A | Proposed Seed Rating: P<\/strong><\/p>\r\n

Jacobaea vulgaris<\/em> Gaertn., tansy ragwort<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Japanese Hawkweed | Youngia japonica<\/em> (L.) DC.<\/a>
Pest Rating: B | Proposed Seed Rating: R<\/strong><\/p>\r\n

Japanese thistle: Cirsium japonicum<\/i>\u00a0<\/a>
Pest Rating: D<\/strong><\/p>\r\n

Jeweled distaff thistle | Carthamus oxyacantha<\/em><\/a>
Pest Rating: B | Proposed Seed Rating: P<\/strong><\/p>\r\n

Jewels of Opar\/Fameflower |\u00a0 Talinum paniculatum<\/em><\/a>
Pest Rating: C | Proposed Seed Rating: None<\/strong><\/p>\r\n

Jointed bulrush\u00a0|\u00a0Schoenoplectus articulatus<\/em> (L.) Palla<\/a>
Synonym: Scirpus articulatus<\/em> L.
Pest Rating: D | Seed Rating: Not Rated<\/strong><\/p>\r\n

Jointvetch | Aeschynomene<\/em> spp.<\/a>
Pest Rating: A \u00a0| \u00a0Proposed \u00a0Seed Rating: P\u00a0 \u00a0\u00a0<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/p>\r\n

Kidneyleaf Mud Plantain | Heteranthera reniformis<\/em><\/a>
Pest Rating: A | \u00a0Proposed \u00a0Seed Rating: P<\/strong><\/p>\r\n

Koenigia polystachya <\/em>(Wall. ex Meisn.) T.M. Schust. & Reveal, Himalayan knotweed\u00a0<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0
Pest Rating: A<\/strong><\/p>\r\n

Laportea Canadensis<\/a><\/em>
Pest Rating: D | Seed Rating: Not Rated<\/strong>\u00a0 \u00a0 \u00a0<\/span><\/p>\r\n

Lathyrus nissolia <\/em>L. grass vetchling, grass pea<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Lepidium coronopus\u00a0 <\/i>(L.) Al-Shehbaz, swinecress, greater swinecress, creeping wartcress<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Lily of the Valley Vine | Salpichroa origanifolia<\/em><\/a>
Pest Rating: C \u00a0| \u00a0Proposed \u00a0Seed Rating: \u00a0R<\/strong><\/p>\r\n

Limnophila indica (L.) Druce, Indian marshweed<\/a><\/i>
Pest Rating: B<\/strong><\/p>\r\n

Limnophila sessiliflora <\/i>Blume, ambulia, Asian marshweed<\/a>
Pest Rating: A\u00a0<\/strong><\/p>\r\n

Ludwigia peruviana <\/i>(L.) H. Hara, Peruvian primrose-willow, Peruvian water-primrose<\/a>
Pest Rating: A<\/strong><\/p>\r\n

Manchurian Wild Rice | Zizania latifolia<\/em><\/a>
Pest Rating: A | Proposed Seed Rating: R
<\/strong><\/p>\r\n

Mascarene Island leaf-flower: Phyllanthus tenellus<\/em>\u00a0<\/a>
Pest Rating:\u00a0 C<\/strong><\/p>\r\n

Mexican pokeweed | Phytolacca heterotepala<\/em> H. Walter<\/a>
Pest Rating: A\u00a0 |\u00a0\u00a0Proposed Seed Rating: R<\/strong><\/p>\r\n

Misopates orontium\u00a0<\/i>(L.) Raf., lesser snapdragon, linear-leaved snapdragon, weasel’s-snout<\/a>
Pest Rating: C<\/strong><\/p>\r\n

Myrtle Spurge | Euphorbia Myrsinites<\/em><\/a>
Pest Rating: A | Proposed Seed Rating: R\u00a0 \u00a0<\/strong><\/p>\r\n

Nothoscordum gracile <\/em>(Aiton) Stern, slender false garlic\u00a0<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0
Pest Rating: B<\/strong><\/p>\r\n

Oenothera sinuosa <\/em>W.L. Wagner & Hoch, wavyleaf guara, wavyleaf beeblossom<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Old man\u2019s beard |\u00a0Clematis vitalba<\/em><\/a>
Pest Rating: A | \u00a0Proposed \u00a0Seed Rating: P<\/strong><\/p>\r\n

Onopordum acanthium <\/em>L., Scotch thistle; cotton thistle\u00a0<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0
Pest Rating: A<\/strong><\/p>\r\n

Orange Hawkweed | Hieracium aurantiacum<\/em><\/a>
Pest Rating: B | \u00a0Proposed \u00a0Seed Rating: P<\/strong>\u00a0\u00a0<\/span><\/p>\r\n

Osteospermum calendulaceum<\/em> L.f., stinking roger<\/a>
Pest Rating: A<\/strong><\/p>\r\n

Parrotfeather Myriophyllum aquaticum <\/span><\/em>(Vell.) Verdc.<\/a>
Pest Rating: C | Proposed \u00a0Seed Rating: R<\/strong>
<\/span><\/p>\r\n

Paterson\u2019s curse |\u00a0Echium plantagineum<\/em> L.<\/a>
Pest Rating: \u00a0A \u00a0| \u00a0Proposed \u00a0Seed Rating: \u00a0P<\/strong><\/strong><\/strong><\/p>\r\n

Physalis longifolia <\/em>Nutt., smooth groundcherry, long leafed groundcherry<\/a> \u00a0
Pest Rating: C<\/strong><\/p>\r\n

Physalis viscosa <\/em>L., grape groundcherry, Physalis cinerascens <\/em>(Dunal) Hitchc., starhair groundcherry<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0
Pest Rating: C<\/strong><\/p>\r\n

Pickerelweed | Pontederia cordata<\/em> L<\/a>
Pest Rating: D |\u00a0Proposed Seed Rating: None<\/strong><\/p>\r\n

Pillpod spurge: Euphorbia hirta <\/em><\/a>
Pest Rating: C\u00a0<\/strong><\/p>\r\n

Portuguese Broom | Cytisus striatus<\/em><\/a>
Pest Rating: B | \u00a0Proposed \u00a0Seed Rating: P<\/strong><\/p>\r\n

Prickly Acacia | Vachellia nilotica<\/em><\/a>
Pest Rating: A | Proposed Seed Rating: P\u00a0<\/strong><\/p>\r\n

Prosopis strombulifera<\/a><\/em> (Lam.) Benth., creeping mesquite, Argentine screwbean<\/a>
<\/em>Pest Rating: A<\/strong><\/p>\r\n

Rorippa austriaca <\/a><\/em>(Crantz) Besser, Austrian fieldcress, Austrian yellowcress\u00a0<\/a>
<\/em>Pest Rating: A<\/strong><\/p>\r\n

Rorippa sylvestris <\/a><\/em>(L.) Besser, creeping yellowcress, creeping yellow fieldcress\u00a0<\/a>
<\/em>Pest Rating: B<\/strong><\/p>\r\n

Rubus bifrons<\/em> Vest, Himalayan blackberry<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0
Pest Rating: C<\/strong><\/p>\r\n

Ruby saltbush | Enchylaena tomentosa<\/em> R. Br.<\/a>
Pest Rating: \u00a0A | \u00a0<\/span>Proposed \u00a0Seed Rating: R<\/strong><\/strong><\/strong><\/strong><\/strong><\/p>\r\n

Russian-thistle: Salsola tragus<\/em> L.<\/a>
Pest Rating: \u00a0C \u00a0| Proposed \u00a0Seed Rating: \u00a0R<\/strong><\/strong><\/strong><\/p>\r\n

Sahara Mustard | Brassica tournefortii<\/em><\/a>
Pest Rating: C | Proposed Seed Rating: R\u00a0<\/strong>\u00a0\u00a0<\/strong><\/p>\r\n

Salsola paulsenii\u00a0<\/em>Litv., barbwire Russian-thistle<\/a>
Pest Rating: C<\/strong>\u00a0 \u00a0<\/strong><\/p>\r\n

Salvia aethiopis<\/em> L., Mediterranean sage<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Salvia virgata <\/i>Jacq., wand sage, southern meadow sage<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Santa Maria feverfew | Parthenium hysterophorus<\/em> L.<\/a>
Pest Rating: A \u00a0| \u00a0Proposed \u00a0<\/strong>Seed Rating: P\u00a0<\/strong>\u00a0<\/strong><\/p>\r\n

Scolymus hispanicus\u00a0<\/i>L., Golden thistle, Spanish salsify<\/a>
Pest Rating: A <\/strong>\u00a0<\/span><\/p>\r\n

Sea-myrtle: Baccharis halimifolia <\/em><\/a>
Pest Rating: A<\/strong><\/p>\r\n

Senecio elegans<\/i> L.: purple ragwort, red-purple ragwort, purple groundsel, wild cineraria\u00a0<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Senecio linearifolius <\/em><\/i>A. Rich., fireweed groundsel, linear-leaved Australian fireweed<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Senecio squalidus<\/em><\/i>L., Oxford ragwort<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Senegal tea plant |\u00a0Gymnocoronis spilanthoides<\/em><\/a>
Synonym: Alomia splanthoides<\/em>
Pest Rating: A \u00a0| \u00a0Proposed \u00a0<\/strong>Seed Rating: P<\/strong><\/p>\r\n

Setaria faberi<\/i> R. A. W. Herrm., giant foxtail, Chinese foxtail<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Shining cranesbill\u00a0|\u00a0Geranium lucidum<\/em> L<\/a>
<\/a>Pest Rating: \u00a0A | Proposed \u00a0Seed Rating: R<\/strong><\/p>\r\n

Slender snakecotton |\u00a0Froelichia gracilis<\/em> (Hook.) Moq.<\/a>
Pest Rating: \u00a0D | Proposed \u00a0Seed Rating: None<\/strong>
<\/span><\/p>\r\n

Slender Russian Thistle | Salsola collina<\/em> Pallas<\/a>
Pest Rating: A | Proposed Seed Rating: P<\/strong><\/p>\r\n

Smallflower Hawksbeard | Crepis pulchra<\/em><\/a>
Pest Rating: C | Proposed Seed Rating: R<\/strong><\/p>\r\n

Smallspike false nettle | <\/strong>Boehmeria cylindrica<\/em><\/a>
Pest Rating: C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\r\n

Snail Medic | Medicago scutellata<\/em> (L.) Wilson<\/a>
Pest Rating: \u00a0D | Seed Rating: Not Rated<\/strong><\/p>\r\n

Solanum carolinense <\/i>L., horsenettle, Carolina horsenettle, bull nettle<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Solanum lanceolatum<\/i> Cav., lance-leaf nightshade<\/a>
Pest Rating: B<\/strong><\/p>\r\n

South American spongeplant | Limnobium laevigatum<\/em><\/a>
Pest Rating: A | Proposed \u00a0Seed Rating: P<\/strong><\/strong><\/p>\r\n

Spanish Heath | Erica lusitanica<\/em><\/a>
Pest\u00a0Rating: B | \u00a0Proposed \u00a0Seed Rating: R<\/strong><\/p>\r\n

Spanish Mercury | Mercurialis ambigua<\/em><\/a>
Pest Rating: B \u00a0| Proposed \u00a0<\/strong>Seed Rating: R<\/strong><\/p>\r\n

Sweet broom: Genista x spachiana<\/i><\/a>
Pest Rating: D<\/strong><\/p>\r\n

Tamarix aphylla <\/i>(L.) Karst.: athel tree<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Thlaspi arvense <\/em>L., field pennycress, fanweed, stinkweed, Frenchweed<\/a>\u00a0 \u00a0 \u00a0\u00a0
Pest Rating: C<\/strong><\/p>\r\n

Tree of Heaven | Ailanthus altissima<\/em> (Miller)<\/a>
Pest Rating: C | Proposed Seed Rating: R<\/strong><\/p>\r\n

Tree Spurge | Euphorbia dendroides<\/em>
<\/a>Pest Rating: \u00a0B \u00a0| Proposed \u00a0Seed Rating: \u00a0R<\/strong><\/strong><\/p>\r\n

Tripidium ravennae <\/i>(L.) H. Scholz: Ravennagrass<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Tropical Whiteweed | Ageratum conyzoides<\/em> L.<\/a>
Pest Rating: C | Proposed Seed Rating: None<\/strong><\/p>\r\n

Turkey Berry | Solanum torvum<\/em><\/a>
Pest Rating: C | Seed Rating: Not Rated<\/strong><\/p>\r\n

Vallisneria australis<\/em> S.W.L. Jacobs and Les: Australian eelgrass, ribbonweed<\/a>
Pest Rating: B<\/strong><\/p>\r\n

Virginia buttonweed: Diodia virginiana<\/i>\u00a0<\/a>
Pest Rating: C<\/strong><\/p>\r\n

Wall Fumitory | Fumaria muralis<\/em> Sand W.D. J. Koch<\/a>
Pest Rating: C | Seed Rating: Not Rated<\/strong><\/p>\r\n

Ward\u2019s weed \u00a0| \u00a0Carrichtera annua<\/em><\/a>
<\/strong>Pest Rating: A \u00a0| \u00a0Proposed \u00a0<\/strong>Seed Rating: R<\/strong><\/p>\r\n

Water-primrose: Ludwigia hexapetala<\/i>\u00a0<\/a>
Pest Rating:\u00a0 C<\/strong><\/p>\r\n

Water spinach: Ipomoea aquatica <\/em><\/a>
Pest Rating: C\u00a0<\/strong><\/p>\r\n

Water sprite: Ceratopteris thalictroides<\/i><\/a>
Pest Rating: D<\/strong><\/p>\r\n

Wavy-leaved thistle: Cirsium undulatum<\/i><\/a>
Pest Rating: D<\/strong><\/p>\r\n

West Indian Woodnettle | \u00a0Laportea aestuans
<\/em><\/a>Pest Rating: C |\u00a0 Seed Rating: Not Rated<\/strong><\/p>\r\n

White-margined nightshade: Solanum marginatum<\/i><\/a>
Pest Rating: B<\/strong><\/p>\r\n

Whitesnow: Drymaria cordata<\/a>
Pest Rating: C<\/strong><\/p>\r\n

Winged Water-Primrose | Ludwigia decurrens<\/em><\/a>
Pest Rating: A \u00a0| Proposed \u00a0<\/strong>Seed Rating: P<\/strong><\/p>\r\n

Witchweed: Striga <\/i>spp.<\/a>
Pest Rating: A<\/strong><\/p>\r\n

Yellow-Flag Iris | Iris pseudacorus L.<\/em><\/a>
Pest Rating: B | Proposed \u00a0Seed Rating: R<\/strong><\/p>\r\n

Yellow Floating-heart | Nymphoides peltata<\/em> (Gmel.) Kuntze<\/a>
Pest Rating: A \u00a0| Proposed \u00a0<\/strong>Seed Rating: R<\/strong><\/p>\r\n

Yellowspine thistle: Cirsium ochrocentrum<\/i>\u00a0<\/a>
Pest Rating: C<\/strong><\/p>\r\n

","protected":false},"excerpt":{"rendered":"

  Weeds are simply an unwanted plant in the wrong place, at the right time.\u00a0 The weeds can directly and indirectly impact agricultural crops and are just as costly to the environment as any other unwanted species. Weeds are simply an unwanted plant in the wrong place, at the right time.\u00a0 The weeds can directly … Continue reading Weeds<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1117,"featured_media":2004,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[333],"tags":[],"class_list":["post-1958","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ratings"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/05\/weeds-featured-image1.jpg?fit=1038%2C588&ssl=1","jetpack_sharing_enabled":false,"jetpack_shortlink":"https:\/\/wp.me\/s5l8vQ-weeds","jetpack-related-posts":[{"id":14143,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=14143","url_meta":{"origin":1958,"position":0},"title":"Cyperus rotundus, purple nutsedge","author":"Dean Kelch","date":"September 26, 2025","format":false,"excerpt":"California Pest Rating Proposal for Cyperus rotundus, purple nutsedge Current Pest Rating: Q Seed Rating: Restricted Proposed Pest Rating: C Comment Period: 09\/26\/2025 through 11\/10\/2025 Download Pest Rating Proposal *NOTE You must be registered and logged in to post a comment. If you have registered and have not received the\u2026","rel":"","context":"In "C-Rated"","block_context":{"text":"C-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=671"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":14154,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=14154","url_meta":{"origin":1958,"position":1},"title":"Cyperus esculentus, yellow nutsedge","author":"Dean Kelch","date":"September 26, 2025","format":false,"excerpt":"California Pest Rating Proposal for Cyperus esculentus, yellow nutsedge Current Pest Rating: Q, W Seed Rating: Restricted Proposed Pest Rating: C Comment Period: 09\/26\/2025 through 11\/10\/2025 Download Pest Rating Proposal *NOTE You must be registered and logged in to post a comment. If you have registered and have not received\u2026","rel":"","context":"In "C-Rated"","block_context":{"text":"C-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=671"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":12942,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=12942","url_meta":{"origin":1958,"position":2},"title":"Cyperus esculentus, yellow nutsedge","author":"Admin","date":"August 1, 2024","format":false,"excerpt":"California Pest Rating Profile for Cyperus esculentus, yellow nutsedgePest Rating: C download pest rating profile *NOTE You must be registered and logged in to post a comment. If you have registered and have not received the registration confirmation, please contact us at permits[@]cdfa.ca.gov. Posted by sk","rel":"","context":"In "C-Rated"","block_context":{"text":"C-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=671"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":12948,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=12948","url_meta":{"origin":1958,"position":3},"title":"Cyperus rotundus, purple nutsedge","author":"Admin","date":"August 1, 2024","format":false,"excerpt":"California Pest Rating Profile for Cyperus rotundus, purple nutsedgePest Rating: C download pest rating profile *NOTE You must be registered and logged in to post a comment. If you have registered and have not received the registration confirmation, please contact us at permits[@]cdfa.ca.gov. Posted by sk","rel":"","context":"In "C-Rated"","block_context":{"text":"C-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=671"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3853,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=3853","url_meta":{"origin":1958,"position":4},"title":"Branched Broomrape | Orobanche ramosa","author":"Dean Kelch","date":"July 18, 2017","format":false,"excerpt":"California Pest Rating Orobanche ramosa L., branched broomrape Lamiales; Orobanchaceae Pest Rating: A |\u00a0\u00a0Seed Rating: P\u00a0 PEST RATING PROFILE Initiating Event: This plant has been rated as \u201cA\u201d on the CDFA Plant Pest Rating list for some years. History & Status: Branched broomrapes are annual plants that grow from seed\u2026","rel":"","context":"In "Weeds"","block_context":{"text":"Weeds","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=7"},"img":{"alt_text":"Branched broomrape | Orobanche ramosa (Photo by CDFA)","src":"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2017\/07\/Brbroomrape70flowerA-CDFA-photo.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3372,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=3372","url_meta":{"origin":1958,"position":5},"title":"English Ivy, Irish Ivy & Algerian Ivy | Hedera spp.","author":"Dean Kelch","date":"February 22, 2017","format":false,"excerpt":"California Pest Rating for English Ivy, Irish Ivy & Algerian Ivy\u00a0 |\u00a0 Hedera spp. Pest Rating: None PEST RATING PROFILE Initiating Event: This plant is subject to a petition to the Secretary to list English ivy (Hedera helix) as a noxious weed. History & Status: True ivies (Hedera spp.) are\u2026","rel":"","context":"In "Weeds"","block_context":{"text":"Weeds","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=7"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/1958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/users\/1117"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1958"}],"version-history":[{"count":328,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/1958\/revisions"}],"predecessor-version":[{"id":14156,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/1958\/revisions\/14156"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/media\/2004"}],"wp:attachment":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}