Weeds montage

Weeds

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

PEST RATING PROPOSALS:

Algerian sea lavendar: Limonium ramosissimum
Current Pest Rating: Q | Pest Rating Proposal: B                                      Comment Period: 5/26/2020 – 7/10/2020

Boehmeria cylindrica, bog-hemp, false nettle, smallspike false nettle
Current Pest Rating: Q | Pest Rating Proposal: D                                      Comment Period: 5/22/2020 – 7/6/2020

European sea lavendar: Limonium duriusculum 
Current Pest Rating: Q | Pest Rating Proposal: B                                      Comment Period: 5/26/2020 – 7/10/2020

PEST RATINGS:

Alligatorweed |  Alternanthera philoxeroides  
Pest Rating: A | Proposed Seed Rating: R

American eelgrass | Vallisneria americana Michx.
Pest Rating: D | Seed Rating: Not Rated

Baby’s Breath | Gypsophila paniculata L.
Pest Rating: B |  Seed Rating: Not Rated

Balloon Plant Asclepias physocarpa
Pest Rating: C | Seed Rating: Not Rated

Banana waterlily: Nymphaea mexicana 
Pest Rating: C

Barbwire Russian Thistle |  Salsola gobicola
Pest Rating : B | Proposed  Seed Rating: R

Bearded creeper | Crupina vulgaris Pers. ex. Cass.
Pest Rating: A | Proposed  Seed Rating: P

Bermuda grass | Cynodon dactylon
 Pest Rating:  D  |  Proposed  Seed Rating:  None

Bitou bush | Chrysanthemoides monilifera
Pest Rating: A  |  Proposed  Seed Rating:  R

Blue panicgrass: Panicum antidotale 
Pest Rating: C

Branched broomrape | Orobanche ramosa L.
Pest Rating: A | Proposed Seed Rating: P

Buffel grass | Pennisetum ciliare
Pest Rating: D  |  Proposed  Seed Rating:  None

Capeweed | Arctotheca calendula (L.) Levyns
Pest Rating: A |  Proposed  Seed Rating: P

Cenchrus clandestinus (Hochst. ex Chiov.) Marrone: kikuyugrass Pest Rating: C | Proposed Rating: C

Chamberbitter: Phyllanthus urinaria L.
Pest Rating: C |  Proposed  Seed Rating: R

Cheatgrass | Bromus tectorum
Pest Rating: C  |  Proposed  Seed Rating: None

Coco-Yam, Elephant Ear or Taro  |  Colocasia esculenta
Pest Rating: D |  Seed Rating: Not Rated

Common reed (Phragmites australis):

Phragmites australis cf. subsp. altissimus (non-native)
Pest Rating: C  | Proposed  Seed Rating: R

Phragmites australis subsp. americanus (native)
Pest Rating: D | Proposed  Seed Rating: None

Dagger-flower | Mantisalca salmantica (L.) Briq. & Cavill. 
Synonym: Centaurea salmantica L.
Pest Rating: A | Proposed  Seed Rating: P

Desert knapweed: Volutaria tubuliflora
Rating: A | Seed Rating: R       

Dwarf poinsettia: Euphorbia cyathophora
Pest Rating: C   

Egyptian broomrape | Orobanche aegyptiaca Pers.
Pest Rating:  A  | Proposed  Seed Rating:  P   

English Ivy, Irish Ivy & Algerian Ivy: Hedera spp. 
Pest Rating: None  

European Frogbit | Hydrocharis morsus-ranae L.
Pest Rating: A |  Proposed  Seed Rating: P

European Mistletoe |  Viscum album L
Pest Rating: A | Proposed Seed Rating: R

False Pickerel Weed | Monochoria vaginalis (Burm. f.) C. Presl ex Kunth
Pest Rating: A |  Proposed Seed Rating: R

False Yellowhead | Dittrichia viscosa (L.) Greuter
Pest Rating: A |  Proposed  Seed Rating: P

Field Bindweed | Convolvulus arvensis L.
Pest Rating: C | Proposed Seed Rating: R

Flowering-rush | Butomus umbellatus
Pest Rating:  B  |  Proposed  Seed Rating:  R

French broom: Genista monspessulana 
Pest Rating: C

Giant chickweed: Myosoton aquaticum 
Pest Rating: C

Giant Hogweed | Heracleum mantegazzianum
Pest Rating : A |  Proposed  Seed Rating: P

Giant Knotweeds:
Fallopia japonica, F. sachalinensis,
& F. X bohemica
Pest Rating: A | Proposed Seed Rating: R

Giant Ragweed | Ambrosia trifida L.
Pest Rating: B

Giant Reed |  Arundo donax
Pest Rating: B | Proposed Seed Rating: R

Goatsrue | Galega officinalis
Pest Rating:  A  | Proposed  Seed Rating:  P

Graceful Spurge | Euphorbia hypericifolia L.
Pest Rating: A | Seed Rating: Not Rated

Heartleaf nightshade: Solanum cardiophyllum
Pest Rating: C

Indian swampweed | Hygrophila polysperma (Roxb.) T. Anderson
Pest Rating: A | Proposed Seed Rating: P                                  

Japanese Hawkweed | Youngia japonica (L.) DC.
Pest Rating: B | Proposed Seed Rating: R

Japanese thistle: Cirsium japonicum 
Pest Rating: D

Jeweled distaff thistle | Carthamus oxyacantha
Pest Rating: B | Proposed Seed Rating: P

Jewels of Opar/Fameflower |  Talinum paniculatum
Pest Rating: C | Proposed Seed Rating: None

Jointed bulrush | Schoenoplectus articulatus (L.) Palla
Synonym: Scirpus articulatus L.
Pest Rating: D | Seed Rating: Not Rated

Jointvetch | Aeschynomene spp.
Pest Rating: A  |  Proposed  Seed Rating: P

Kidneyleaf Mud Plantain | Heteranthera reniformis
Pest Rating: A |  Proposed  Seed Rating: P

Laportea Canadensis
Pest Rating: D | Seed Rating: Not Rated

Lily of the Valley Vine | Salpichroa origanifolia
Pest Rating: C  |  Proposed  Seed Rating:  R

Manchurian Wild Rice | Zizania latifolia
Current Pest Rating: A | Proposed Seed Rating: R

Mascarene Island leaf-flower: Phyllanthus tenellus 
Pest Rating:  C

Mexican pokeweed | Phytolacca heterotepala H. Walter
Pest Rating: A  |  Proposed Seed Rating: R

Myrtle Spurge | Euphorbia Myrsinites
Pest Rating: A | Proposed Seed Rating: R

Old man’s beard | Clematis vitalba
Pest Rating: A |  Proposed  Seed Rating: P

Orange Hawkweed | Hieracium aurantiacum
Pest Rating: B |  Proposed  Seed Rating: P

Parrotfeather Myriophyllum aquaticum (Vell.) Verdc.
Pest Rating: C | Proposed  Seed Rating: R

Paterson’s curse | Echium plantagineum L.
Pest Rating:  A  |  Proposed  Seed Rating:  P

Pickerelweed | Pontederia cordata L
Pest Rating: D | Proposed Seed Rating: None

Pillpod spurge: Euphorbia hirta
Pest Rating: C 

Portuguese Broom | Cytisus striatus
Pest Rating: B |  Proposed  Seed Rating: P

Prickly Acacia | Vachellia nilotica
Pest Rating: A | Proposed Seed Rating: P

Ruby saltbush | Enchylaena tomentosa R. Br.
Pest Rating:  A |  Proposed  Seed Rating: R

Russian-thistle: Salsola tragus L.
Pest Rating:  C  | Proposed  Seed Rating:  R

Sahara Mustard | Brassica tournefortii
Pest Rating: C | Proposed Seed Rating: R

Santa Maria feverfew | Parthenium hysterophorus L.
Pest Rating: A  |  Proposed  Seed Rating: P

Sea-myrtle: Baccharis halimifolia
Pest Rating: A                                     

Senegal tea plant | Gymnocoronis spilanthoides
Synonym: Alomia splanthoides
Pest Rating: A  |  Proposed  Seed Rating: P

Shining cranesbill | Geranium lucidum L
Pest Rating:  A | Proposed  Seed Rating: R

Slender snakecotton | Froelichia gracilis (Hook.) Moq.
Pest Rating:  D | Proposed  Seed Rating: None

Slender Russian Thistle | Salsola collina Pallas
Pest Rating: A | Proposed Seed Rating: P

Smallflower Hawksbeard | Crepis pulchra
Pest Rating: C | Proposed Seed Rating: R

Snail Medic | Medicago scutellata (L.) Wilson
Pest Rating:  D | Seed Rating: Not Rated

South American spongeplant | Limnobium laevigatum
Pest Rating: A | Proposed  Seed Rating: P

Spanish Heath | Erica lusitanica
Pest Rating: B |  Proposed  Seed Rating: R

Spanish Mercury | Mercurialis ambigua
Pest Rating: B  | Proposed  Seed Rating: R

Sweet broom: Genista x spachiana
Pest Rating: D 

Tree of Heaven | Ailanthus altissima (Miller)
Pest Rating: C | Proposed Seed Rating: R

Tree Spurge | Euphorbia dendroides
Pest Rating:  B  | Proposed  Seed Rating:  R 

Tropical Whiteweed | Ageratum conyzoides L.
Pest Rating: C | Proposed Seed Rating: None

Turkey Berry | Solanum torvum
Pest Rating: C | Seed Rating: Not Rated

Virginia buttonweed: Diodia virginiana 
Pest Rating: C

Wall Fumitory | Fumaria muralis Sand W.D. J. Koch
Pest Rating: C | Seed Rating: Not Rated

Ward’s weed  |  Carrichtera annua
Rating: A  |  Proposed  Seed Rating: R

Water hyacinth | Eichhornia crassipes
Pest Rating: None | Proposed  Seed Rating: None

Water-primrose: Ludwigia hexapetala 
Pest Rating:  C

Water spinach: Ipomoea aquatica
Pest Rating: C 

Water sprite: Ceratopteris thalictroides
Pest Rating: D

Wavy-leaved thistle: Cirsium undulatum
Pest Rating: D

West Indian Woodnettle |  Laportea aestuans
Pest Rating: C |  Seed Rating: Not Rated

White-margined nightshade: Solanum marginatum
Pest Rating: B

Whitesnow: Drymaria cordata
Pest Rating: C

Winged Water-Primrose | Ludwigia decurrens
Pest Rating: A  | Proposed  Seed Rating: P

Witchweed: Striga spp.
Pest Rating: A

Yellow-Flag Iris | Iris pseudacorus L.
Pest Rating: B | Proposed  Seed Rating: R

Yellow Floating-heart | Nymphoides peltata (Gmel.) Kuntze
Pest Rating: A  | Proposed  Seed Rating: R

Yellowspine thistle: Cirsium ochrocentrum 
Pest Rating: C