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How to Manage Pests
UC Pest Management Guidelines
Lettuce
Weed Photo Gallery,
with common and scientific names
(Reviewed 8/07,
updated 8/07)
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In this Guideline:
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More about weeds in lettuce:
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Common names link to pages with weed descriptions and photos, up to 100K, often showing several stages of development.
| Common name |
Scientific name |
| barnyardgrass |
Echinochloa crus-galli |
| bluegrass,
annual
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Poa annua |
| burclover,
California
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Medicago polymorpha |
| canarygrasses |
Phalaris spp. |
| chickweed,
common
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Stellaria media |
| crabgrasses |
Digitaria spp. |
| cupgrasses |
Eriochloa spp. |
| fiddlenecks |
Amsinckia spp. |
| goosefoot,
nettleleaf
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Chenopodium murale |
| groundcherries |
Physalis spp. |
| groundsel,
common
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Senecio vulgaris |
| henbit |
Lamium amplexicaule |
| junglerice |
Echinochloa colona |
| knotweed,
common
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Polygonum arenastrum |
| lambsquarters, common |
Chenopodium album |
| lettuce,
prickly
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Lactuca serriola |
| mallows |
Malva spp. |
| mustards |
Brassica spp. |
| nettle, burning |
Urtica urens |
| nightshade,
hairy
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Solanum sarrachoides |
| nutsedge,
purple
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Cyperus rotundus |
| nutsedge,
yellow
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Cyperus esculentus |
| oat, wild |
Avena fatua |
| pigweeds |
Amaranthus spp. |
| purslane, common |
Portulaca oleracea |
| rocket,
London
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Sisymbrium irio |
| shepherd's-purse |
Capsella bursa-pastoris |
| sowthistles |
Sonchus spp. |
| sweetclovers |
Melilotis spp. |
| swinecress, creeping |
Coronopus squamatus |
UC IPM Pest Management Guidelines: Lettuce
UC ANR Publication 3450
Weeds
R. F. Smith, UC Cooperative Extension, Monterey County
S. A. Fennimore, Weed Science/Plant Sciences, UC Davis/Salinas
M. LeStrange, UC Cooperative Extension, Tulare County
Acknowledgment for contributions to Weeds:
D. W. Cudney, Botany, UC Riverside
W. E. Bendixen, UC Cooperative Extension, Santa Barbara County
C. E. Bell, UC Cooperative Extension, San Diego County
W. T. Lanini, Weed Science/Plant Sciences, UC Davis
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