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Diseases of Verbena
(Verbena × hybrida Groenl. & Ruempl.)

Margery Daughtrey, collator (last update 5/25/00)

FUNGAL DISEASES

Alternaria leaf spot

Alternaria sp.

Black root rot

Thielaviopsis basicola (Berk. & Broome) Ferraris

     Chalara elegans Nag Raj & Kendr. [synanamorph]

Botrytis blight

Botrytis cinerea Pers.:Fr.

Cercospora leaf spot

Cercospora sp.

Powdery mildew

Erysiphe cichoracearum DC

Sphaerotheca xanthii (Castagne) L. Junell

     = Podosphaera xanthii (Castagne) U. Braun &
     N. Shishkoff comb. nov.

Rhizoctonia root and crown rot

Rhizoctonia solani Kühn

VIRAL AND VIROID DISEASES

Bidens mottle

genus Potyvirus, Bidens mottle virus (BiMoV)

Impatiens necrotic spot

genus Tospovirus, Impatiens necrotic spot virus (INSV)

Potyvirus, unnamed

genus Potyvirus

Tomato spotted wilt

genus Tospovirus, Tomato spotted wilt virus (TSWV)