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Alfalfa/lucerne (Medicago sativa) - (Forage/fodder crops)

List of pests-diseases-weeds for country: U.S.A. (NE)

Information on all pests, diseases and weeds can be found in the downloadable Excel files
click on a pest/disease/weed to display a list of relevant publications

diseases
pests
weeds

diseases:

Ascomycota - Dothideomycetes:

Ascochyta medicaginicola
Leptosphaeria sclerotioides
Leptosphaerulina trifolii

Ascomycota - Leotiomycetes:

Pseudopeziza medicaginis
Sclerotinia trifoliorum

Ascomycota - Sordariomycetes:

Colletotrichum gloeosporioides
Colletotrichum trifolii
Fusarium oxysporum f.sp. medicaginis
Verticillium alboatrum
Verticillium alfalfae

Bacteria:

Clavibacter insidiosus

Other fungal-like organisms:

Phytophthora megasperma

Plant parasitic nematodes:

Pratylenchus penetrans

Plant viruses:

Snake River alfalfa virus

pests:

Coleoptera:

Hypera postica
Otiorhynchus ligustici
Sitona hispidulus

Diptera (plant parasitic):

Agromyza frontella

Hemiptera - Cicadomorpha:

Empoasca fabae
Philaenus spumarius

Hemiptera - Heteroptera (plantsucking):

Adelphocoris lineolatus
Halticus bractatus
Leptopterna dolabrata
Lygus lineolaris
Trigonotylus caelestialium

Hemiptera - Sternorrhyncha:

Acyrthosiphon pisum
Aphis craccivora

Lepidoptera:

Noctua pronuba
Plathypena scabra

Other insect orders (plant/storage pests):

Melanoplus femurrubrum
Thrips tabaci

Other pests:

Odocoileus virginianus

weeds:

Eudicotyledons - Asterales:

Ambrosia artemisiifolia (weed)
Carduus acanthoides (weed)
Cirsium arvense (weed)
Taraxacum officinale (weed)

Eudicotyledons - Caryophyllales:

Chenopodium album (weed)

Monocotyledons:

Digitaria sanguinalis (weed)
Echinochloa (weeds)
Panicum dichotomiflorum (weed)