Gregor
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
7 records
Diseases
Fusarium wilt of lettuce
Lactuca sativa L.
Tracheomycotic wilt of lettuce caused by the soil-borne fungus Fusarium oxysporum f. sp. lactucae. The disease affects the plant's vascular system, leading to yellowing, loss of turgor, and death.
In the reference 671 varieties crop Lettuce, where this is mentioned in the description.
The causal agent of the disease is the fungus Fusarium oxysporum f. sp. lactucae, which includes four main races: Fol: 1, 2, 3, and 4. The pathogen exhibits high variability, as evidenced by the identification of new isolates capable of overcoming the resistance of existing varieties.
Key symptoms of infection include chlorosis and unilateral wilting, which begin to appear from the 3–4 true leaf stage. A diagnostic sign is the browning of the vascular tissue on a cross-section of the stem. The disease develops most intensely at a soil temperature of approximately +27...+28°C.
Breeding efforts are aimed at developing hybrids resistant to combinations of pathogen races. In official catalogs, resistance is indicated by marker designations such as Fol: 1, Fol: 1–4, or Fusarium Defense, which confirms the presence of genetic protection against the corresponding types of the fungus.
General information about the subject — on the page Fusarium wilt and blight.
Varieties of Lettuce mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Kerrita
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
8 records
Requena
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Battlestar
ActiveLactuca sativa L. · Lettuce
NANNES JEROEN
NL
8 records
Multired 145
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
7 records
Othilie
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
5 records
Limeira
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Batuka
ActiveLactuca sativa L. · Lettuce
Nunhems B.V.
NL
8 records
Vessel
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
11 records
Multired 209
Application submittedLactuca sativa L. · Lettuce
Nunhems Netherlands B.V.
NL
6 records
Claudius
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V. (NL)
HR
NL
5 records
Antanas
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Sideral
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
8 records
Bottas
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Histrion
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan, NL
FR
5 records
Codex
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Victorinus
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Kidow
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan, NL
NL
7 records
Buffona
Application submittedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Moonred
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
7 records
SV6621LA
ActiveLactuca sativa L. · Lettuce
VEGETABLE MONSANTO B.V.
FR
8 records
Todonas
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan, NL
NL
7 records
Meridian
ActiveLactuca sativa L. · Lettuce
Victor Carl Heintzberger, John Carl Heintzberger
NL
4 records
Cupidita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
6 records