3 Related Pests
Ascochyta suberosa, Didymaria perforans, Marssonia panattoniana, Marssonia perforans, Marssonina panattoniana
Worldwide, primarily North America, Europe, Australia
AK, CA, FL, ID, MI, NC, OR TX, WA
The primary inoculum is soilborne
No references found indicating seed is a pathway. Inoculum is primarily from soil.
Production of lettuce seed in dry climates may be applied to endive seed production.
Bacterium cichorii, Bacterium endiviae, Bacterium formosanum, Chlorobacter cichorii, Phytomonas cichorii, Phytomonas endiviae,Pseudomonas endiviae Kotte, Pseudomonas formosanum, Pseudomonas papaveris, Pseudomonas papaveris
Widespread, localized outbreaks
Pseudomonas cichorii has been shown to survive on artificially inoculated lettuce seeds. Many references have reported P. cichorii as seed transmitted, but despite field observation of early infections in hosts, there is no experimental data on transmission by seed.
Primarily lettuce, endive and other Asteraceae species.
No references found indicating seed is a pathway.
Lettuce big-vein virus
Lettuce big vein-virus
Widespread in cultivated lettuce areas
Not considered a quarantine pest. Transmitted by the Olpidium brassicae fungus.
There is no evidence that this virus is seed borne. Vectored by the Olpidium brassicae fungus. Does not cause economic damage to endive.
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