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Diseases

Tomato Leaf Spots

Solanum lycopersicum L.

A group of tomato diseases caused by various pathogens, characterized by specific symptoms and resistance mechanisms.

In the reference 563 varieties crop Tomato, where this is mentioned in the description.

Leaf mold, caused by Fulvia fulva (Pf), manifests as rounded yellowish spots with a velvety coating on the underside of leaves. The pathogen has races 1.2, 1.2.3, 1.2.3.4, and breeding is conducted through the use of Cf resistance genes (Cf-2, Cf-4, Cf-9). Stemphylium leaf spot, caused by Stemphylium solani (Ss), S. lycopersici (Sl), and S. botryosum (Sbl), is characterized by small brown-black spots up to 3 mm in size with a yellow halo.

Bacterial spot (Pseudomonas syringae pv. tomato, Xanthomonas campestris pv. vesicatoria) manifests as black water-soaked spots, affecting stems and fruits. Resistance to it is provided by the Pto and Ptr1 genes. Early blight (Alternaria solani, A. tomatophila) is distinguished by concentric dark brown spots; it is characterized by polygenic resistance, unlike the gene-for-gene interaction seen in leaf mold.

General information about the subject — on the page Leaf spot diseases.

Sources8

Varieties of Tomato 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.

Camaro

Terminated

Solanum lycopersicum L. · Tomato

NL
2 records

Diadem

Terminated

Solanum lycopersicum L. · Tomato

NL
2 records

Crown Jewel

Terminated

Solanum lycopersicum L. · Tomato

NL
3 records

Dattorange

Active

Solanum lycopersicum L. · Tomato

CZ
2 records

Bottondoro

Active

Solanum lycopersicum L. · Tomato

NL
2 records

Centurion

Protection expired

Solanum lycopersicum L. · Tomato

CZ
2 records

Calmarzano

Active

Solanum lycopersicum L. · Tomato

NL
2 records

Bukanito

Active

Solanum lycopersicum L. · Tomato

HU
2 records

Alboran

Terminated

Solanum lycopersicum L. · Tomato

NL
2 records

Bilbo

Active

Solanum lycopersicum L. · Tomato

NL
2 records

Sotorubra

Application submitted

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
2 records

Yaqui F1

Active

Solanum lycopersicum L. · Tomato

Hari Besels

UA
1 record

Veloz F1

Active

Solanum lycopersicum L. · Tomato

Doug Heath

UA
1 record

Vesta

Terminated

Solanum lycopersicum L. · Tomato

Tezier SA (FR)

FR
2 records

Topsport F1

Active

Solanum lycopersicum L. · Tomato

Ger Bimsdeboer

UA
1 record

TT-1060

Application submitted

Solanum lycopersicum L. · Tomato

Harmoniz

ES
1 record

Torch F1

Terminated

Solanum lycopersicum L. · Tomato

Her Bimsdeboer

UA
1 record

Tanya F1

Active

Solanum lycopersicum L. · Tomato

Teresa Beck Bunn

UA
1 record

Sunrise F1

Terminated

Solanum lycopersicum L. · Tomato

Hari Besels

UA
1 record

Siluet F1

Terminated

Solanum lycopersicum L. · Tomato

Erik Bastet

UA
1 record

Shanty F1

Terminated

Solanum lycopersicum L. · Tomato

Moshe Zalsman

UA
2 records

SANTA LUCIA

Terminated

Solanum lycopersicum L. · Tomato

PETOSEED CO

ES
1 record

Scarlet red

Application submitted

Solanum lycopersicum L. · Tomato

HM Clause Inc (US)

FR
1 record