Pest Management Guidelines

Weed Photo Gallery,
with common and scientific names

(Reviewed 12/07, updated 4/09)

In this Guideline: More about weeds in walnut:

Common Name Scientific Name
asparagus Asparagus officinalis
barley, hare Hordeum leporinum
barnyardgrass Echinochloa crus-galli
bermudagrass Cynodon dactylon
bindweed, field Convolvulus arvensis
blackberries Rubus spp.
bluegrass, annual Poa annua
bromegrasses Bromus spp.
burclover, California Medicago polymorpha
canarygrass Phalaris canariensis
catsear, common Hypochaeris radicata
chickweed, common Stellaria media
clovers Trifolium spp.
cockleburs Xanthium spp.
crabgrasses Digitaria spp.
cudweeds Gnaphalium spp.
dock, curly Rumex crispus
dallisgrass Paspalum dilatatum
dandelion Taraxacum officinale
fiddlenecks Amsinckia spp.
filarees Erodium spp.
fleabane, hairy Conyza bonariensis
foxtails Setaria spp.
goosefoot, nettleleaf Chenopodium murale
groundcherries Physalis spp.
groundsel, common Senecio vulgaris
henbit Lamium amplexicaule
horseweed Conyza canadensis
johnsongrass Sorghum halepense
junglerice Echinochloa colona
knotweed, prostate Polygonum aviculare
lambsquarters, common Chenopodium album
lettuce, miner's Claytonia perfoliata
lettuce, prickly Lactuca serriola
lovegrasses Eragrostis spp.
mallow, little (cheeseweed) Malva parviflora
mustards Brassica spp.
nettles Urtica spp.
nightshades Solanum spp.
nutsedge, yellow Cyperus esculentus
oat, wild Avena fatua
onion, wild Allium canadense
pigweeds Amaranthus spp.
pineapple-weed Chamomilla suaveolens
poison-oak, Pacific Toxicodendron diversilobum
polypogon, rabbitfoot Polypogon monspeliensis
puncturevine Tribulus terrestris
purslane, common Portulaca oleracea
radish, wild Raphanus raphanistrum
redmaids (desert rockpurslane) Calandrinia ciliate
rocket, London Sisymbrium irio
ryegrasses Lolium spp.
sandburs Cenchrus spp.
shepherd's-purse Capsella bursa-pastoris
sorrel, red Rumex acetosella
sowthistles Sonchus spp.
speedwells Veronica spp.
spurges Euphorbia (=Chamaesyce) spp.
star of Bethlehem Ornithogalum umbellatum
thistle, Russian Salsola tragus
witchgrass Panicum capillare


[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Walnut
UC ANR Publication 3471

  • A. Shrestha, UC IPM Program/Kearney Agricultural Center, Parlier
  • R. B. Elkins, UC Cooperative Extension, Lake County
  • J. K. Hasey, UC Cooperative Extension, Sutter/Yuba Counties
  • K. K. Anderson, UC Cooperative Extension, Stanislaus County
Acknowledgment for contributions to Weeds:
  • C. L. Elmore, Weed Science/Plant Sciences, UC Davis
  • G. S. Sibbett, UC Cooperative Extension, Tulare County
  • W. O. Reil, UC Cooperative Extension, Yolo County
  • T. S. Prather, Plant, Soil, and Entomological Sciences, University of Idaho, Moscow, ID
  • J. J. Stapleton, UC IPM Program/Kearney Agricultural Center, Parlier
  • J. A. Grant, UC Cooperative Extension, San Joaquin County

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