Agricultural pest management

Dodder flowers and seed capsules.

Weed Photo Gallery, with common and scientific names

(Reviewed 11/11 , updated 11/11 , corrected 12/13 )

In this Guideline: More about weeds in tomato:

Common names link to pages with weed descriptions and photos often showing several stages of development.

Common Name Scientific Name
Barnyardgrass Echinochloa crus-galli
Bermudagrass Cynodon dactylon
Bindweed, Field Convolvulus arvensis
Broomrape Orobanche ramosa
Canarygrasses Phalaris spp.
Chickweed, Common Stellaria media
Crabgrass, Large Digitaria sanguinalis
Datura, Sacred Datura wrightii
Dodders Cuscuta spp.
Fleabane, Hairy Conyza bonariensis
Goosefoot, Nettleleaf Chenopodium murale
Groundcherries Physalis spp.
Groundsel, Common Senecio vulgaris
Horseweed Conyza canadensis
Jimsonweed Datura stramonium
Johnsongrass Sorghum halepense
Knotweed, Prostrate Polygonum arenastrum
Lambsquarters, Common Chenopodium album
Lettuce, Prickly Lactuca serriola
Lovegrasses Eragrostis spp.
Mallow, Little (Cheeseweed) Malva parviflora
Mustards Brassica spp.
Nettle, Burning Urtica urens
Nightshade, Black Solanum nigrum
Nightshade, Hairy Solanum sarrachoides
Nutsedge, Purple Cyperus rotundus
Nutsedge, Yellow Cyperus esculentus
Oat, Wild Avena fatua
Pigweeds Amaranthus spp.
Purslane, Common Portulaca oleracea
Rocket, London Sisymbrium irio
Shepherd's-Purse Capsella bursa-pastoris
Sowthistles Sonchus spp.
Sweetclovers Melilotus spp.
Thistle, Russian Salsola tragus
Tobacco, Indian Nicotiana quadrivalvis
Tomatillo Physalis philadephica
Velvetleaf Abutilon theophrasti


[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Tomato
UC ANR Publication 3470


  • W. T. Lanini, Weed Science/Plant Sciences, UC Davis
  • K. J. Hembree, UC Cooperative Extension, Fresno County
  • G. Miyao, UC Cooperative Extension, Solano/Yolo counties
  • C. S. Stoddard, UC Cooperative Extension, Merced/Madera counties
  • Acknowledgments for contributions to the weed section:
  • B. J. Mullen,UC Cooperative Extension, San Joaquin County
  • J. P. Orr, UC Cooperative Extension, Sacramento County
  • W. E. Bendixen, UC Cooperative Extension, Santa Barbara County

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