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How to Manage Pests
UC Pest Management Guidelines
Alfalfa
Weed
Photo Gallery,
with common and scientific names
in established alfalfa
(Reviewed 11/06,
updated 11/06)
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In this Guideline:
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More about weeds in alfalfa:
- Established alfalfa
- Seedling alfalfa
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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 |
|---|
| barley, foxtail |
Hordeum jubatum |
|---|
| barley, hare |
Hordeum leporinum |
|---|
| barnyardgrass |
Echinochloa crus-galli |
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| bermudagrass |
Cynodon dactylon |
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| bindweed, field |
Convolvulus arvensis |
|---|
| bluegrass, annual |
Poa annua |
|---|
| bluegrass, bulbous |
Poa bulbosa |
|---|
| brome, downy |
Bromus tectorum |
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| canarygrasses |
Phalaris spp. |
|---|
| chickweed, common |
Stellaria media |
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| cupgrass, prairie |
Eriochloa contracta |
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| dandelion |
Taraxacum officinale |
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| dodders |
Cuscuta spp. |
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| fiddlenecks |
Amsinckia spp. |
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| filarees |
Erodium spp. |
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| flixweed |
Descurainia sophia |
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| foxtails (yellow and green) |
Setaria spp. |
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| goosefoot, nettleleaf |
Chenopodium murale |
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| goosegrass |
Eleusine indica |
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| groundsel, common |
Senecio vulgaris |
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| johnsongrass |
Sorghum halepense |
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| junglerice |
Echinochloa colona |
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| knotweed, prostrate |
Polygonum aviculare |
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| lambsquarters, common |
Chenopodium album |
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| lettuce, prickly |
Lactuca serriola |
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| mallow, little (cheeseweed) |
Malva parviflora |
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| miner's lettuce |
Claytonia perfoliata |
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| mustards |
Brassica spp. |
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| nettle, burning |
Urtica urens |
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| nightshades |
Solanum spp. |
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| nutsedge, yellow |
Cyperus esculentus |
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| oat, wild |
Avena fatua |
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| pepperweeds |
Lepidium spp. |
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| pigweeds |
Amaranthus spp. |
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| plantain, buckhorn |
Plantago lanceolata |
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| quackgrass |
Elytrigia repens |
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| radish, wild |
Raphanus raphanistrum |
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| redmaids (desert rockpurslane) |
Calandrinia ciliata |
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| rocket, London |
Sisymbrium irio |
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| ryegrass, Italian |
Lolium multiflorum |
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| ryegrasses |
Lolium spp. |
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| shepherd's-purse |
Capsella bursa-pastoris |
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| sowthistles |
Sonchus spp. |
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| starthistle, yellow |
Centaurea solstitialis |
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| stinkgrass |
Eragrostis cilianensis |
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| thistle, Russian |
Salsola tragus |
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| witchgrass |
Panicum capillare |
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![[UC Peer Reviewed]](/IMAGES/logo-ucpeerreviewed.jpg)
UC IPM Pest Management Guidelines: Alfalfa
UC ANR Publication 3430
Weeds in Established Alfalfa
W. M. Canevari, UC Cooperative Extension, San Joaquin County
S. B. Orloff, UC Cooperative Extension, Siskiyou County
W. T. Lanini, Weed Science/Plant Sciences, UC Davis
R. G. Wilson, UC Cooperative Extension, Lassen County
R. N. Vargas, UC Cooperative Extension, Madera County
Acknowledgment for contributions to Weeds:
C. E. Bell, UC Cooperative Extension, San Diego County
R. F. Norris, Vegetable Crops/Weed Science, UC Davis
J. L. Schmierer, UC Cooperative Extension, Colusa County
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