Robert N. Campbell, primary collator (last update 3/11/93)
BACTERIAL DISEASES
- Bacterial leaf spot and head rot
- Xanthomonas campestris pv. vitians (Brown) Dye
- Bacterial soft rot
- Erwinia carotovora (Jones) Bergey et al.
- Pseudomonas marginalis (Brown) Stevens
- Corky root
- Rhizomonas spp.
- R. suberifaciens van Bruggen et al.
- Varnish spot
- Pseudomonas cichorii (Swingle) Stapp
FUNGAL DISEASES
- Alternaria leaf spot
- Alternaria sonchi J.J. Davis in J.A. Elliott
- Anthracnose
- Microdochium panattonianum (Berl.) Sutton et al. in Galea
et al.
- = Marssonina panattoniana (Berl.) Magnus
- Bottom rot
- Rhizoctonia solani Kühn
- (teleomorph: Thanatephorus cucumeris (A.B. Frank) Donk)
- Cercospora leaf spot
- Cercospora longissima Sacc.
- Damping-off, Pythium
- Pythium spp.
- P. ultimum Trow
- Damping-off, Rhizoctonia
- Rhizoctonia solani Kühn
- Downy mildew
- Bremia lactucae Regel
- Plasmopara lactucae-radicis Stanghellini & Gilbertson
- Drop (Sclerotinia rot)
- Sclerotinia sclerotiorum (Lib.) de Bary
- S. minor Jaggar
- Gray mold
- Botrytis cinerea Pers.:Fr.
- (teleomorph: Botryotinia fuckeliana (de Bary) Whetzel)
- Phymatotrichum root rot (cotton root rot)
- Phymatotrichopsis omnivora (Duggar) Hennebert
- = Phymatotrichum omnivorum Duggar
- Powdery mildew
- Erysiphe cichoracearum DC.
- Rust
- Puccinia dioicae Magnus
- = P. extensicola Plowr. var. hieraciata (Schwein.) Arthur
- Septoria leaf spot
- Septoria lactucae Pass.
- Southern blight
- Sclerotium rolfsii Sacc.
- (teleomorph: Athelia rolfsii (Curzi) Tu & Kimbrough)
- Stemphylium leaf spot
- Stemphylium botryosumWallr.
- (teleomorph: Pleospora tarda E. Simmons)
- Wilt and leaf blight
- Pythium tracheiphilum Matta
MISCELLANEOUS DISEASES OR DISORDERS
- Brown stain
- Physiological, excess CO2
- Russet spotting
- Physiological, excess ethylene
- Tipburn
- Physiological, Ca** deficiency and high temperature
NEMATODES, PARASITIC
- False root knot
- Nacobbus aberrans (Thorne) Thorne & Allen
- Lesion
- Pratylenchus spp.
- Needle
- Longidorus spp.
- Root-knot
- Meloidogyne spp.
- Spiral
- Rotylenchus robustus (de Man) Filipjev
- Stunt
- Melinius brevidens (Allen) Siddiqi
- Tylenchorhynchus spp.
PARASITIC HIGHER PLANT
- Broomrape
- Orobanche ramosa L.
VIRUS AND VIRUSLIKE DISEASES
(Also mycoplasmalike organism [MLO])
- Big vein
- Lettuce big vein virus
- Calico
- Alfalfa mosaic virus
- Tobacco ringspot virus
- Internal rib necrosis
- Lettuce mosaic virus
- Mosaic
- Lettuce mosaic virus
- Biden mosaic virus
- Cucumber mosaic virus
- Turnip mosaic virus
- Necrotic yellows
- Lettuce necrotic yellows virus
- Ring necrosis
- Presumed viral agent (not identified)
- Rusty brown discoloration
- Accentuated by lettuce mosaic virus
- Speckles
- Lettuce speckles virus and beet western yellows virus
- Stunt
- Beet yellow stunt virus
- Virescence
- Aster yellows MLO
- Beet leafhopper-transmitted virescence MLO
- Wilt
- Broadbean wilt virus
- Tomato spotted wilt virus
- Yellow spot
- Tobacco rattlevirus
- Yellows
- Beet western yellows virus
- Other
- Sow thistle yellow vein virus
**Calcium
