List of Alfalfa Diseases - Fungal Diseases

Fungal diseases
Acrocalymma root and crown rot

Acrocalymma medicaginis
Massarina walkeri

Anthracnose Colletotrichum trifolii
Aphanomyces root rot Aphanomyces euteiches
Black patch Rhizoctonia leguminicola
Black root rot

Thielaviopsis basicola
Chalara elegans

Blossom blight

Botrytis cinerea
Botryotinia fuckeliana
Sclerotinia sclerotiorum
Brown root rot Phoma sclerotioides = Plenodomus meliloti
Crown and root rot complex

Fusarium acuminatum
Gibberella acuminata
Fusarium avenaceum
Gibberella avenacea
Fusarium equiseti
Fusarium oxysporum
Fusarium sambucinum
Fusarium solani
Nectria haematococca
Fusarium spp.
Phoma medicaginis
Pythium spp.
Rhizoctonia solani
Thanatephorus cucumeris
Thielaviopsis basicola
Chalara elegans

Charcoal rot Macrophomina phaseolina
Common leaf spot Pseudopeziza medicaginis
Corky root rot Xylaria sp.
Crown wart Physoderma alfalfae

= Urophlyctis alfalfae
Cylindrocarpon root rot

Cylindrocarpon magnusianum
= Cylindrocarpon ehrenbergii
Nectria ramulariae

Cylindrocladium root and crown rot Cylindrocladium crotalariae

Calonectria crotalariae

Damping-off

Fusarium acuminatum
Gibberella acuminata
Mycoleptodiscus terrestris
Phytophthora medicaginis
Phytophthora megasperma f.sp. medicaginis
Pythium spp.
Pythium debaryanum
Pythium irregulare
Pythium splendens
Pythium ultimum
Rhizoctonia solani
Thanatephorus cucumeris

Downy mildew Peronospora trifoliorum
Fusarium wilt Fusarium oxysporum f.sp. medicaginis
Lepto leaf spot Leptosphaerulina trifolii
Marasmius root rot Marasmius sp.
Mycoleptodiscus crown and root rot Mycoleptodiscus terrestris
Myrothecium root rot

Myrothecium roridum
Myrothecium verrucaria
Phymatotrichum root rot = cotton root rot = Texas root rot

Phymatotrichopsis omnivora
= Phymatotrichum omnivorum
Phytophthora root rot

Phytophthora medicaginis
Phytophthora megasperma f.sp. medicaginis
Powdery mildew

Erysiphe pisi
Leveillula taurica
Rhizoctonia root rot and stem blight

Rhizoctonia solani
Thanatephorus cucumeris

Rhizopus sprout rot Rhizopus stolonifer
Rust

Uromyces striatus
= Uromyces medicaginis
= Uromyces oblongus
= Uromyces striatus var. medicaginis
Sclerotinia crown and stem rot

Sclerotinia trifoliorum
Sclerotinia sclerotiorum
Southern blight

Sclerotium rolfsii
Athelia rolfsii

Spring black stem and leaf spot Phoma medicaginis
Stagonospora leaf spot and root rot

Stagonospora meliloti
Phoma meliloti
Leptosphaeria pratensis

Stemphylium leaf spot

Pleospora spp.
Stemphylium alfalfae
Pleospora alfalfae
Stemphylium botryosum
Pleospora tarda
Stemphylium globuliferum
Stemphylium herbarum
Pleospora herbarum
Stemphylium vesicarium species complex
Summer black stem and leaf spot Cercospora medicaginis
Verticillium wilt

Verticillium albo-atrum
Verticillium dahliae
Violet root rot

Helicobasidium brebissonii
Rhizoctonia crocorum
Winter crown rot = Coprinus snow mold Coprinus psychromorbidus
Yellow leaf blotch

Leptotrochila medicaginis
= Pyrenopeziza medicaginis
= Pseudopeziza jonesii
Sporonema phacidioides

Read more about this topic:  List Of Alfalfa Diseases

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