Diseases

Verticillium wilt

Verticillium

Verticillium wilt is a soil-borne disease caused by fungi that block plant vascular tissues, leading to gradual wilting and death. The pathogen can persist in the soil for more than 10 years.

Mentioned in descriptions 12 175 varieties reference book.

Verticillium wilt manifests through the infection of the root system and subsequent colonization of the xylem by the fungal pathogen. The first external symptoms include slow yellowing and curling of the lower leaves, which eventually wither. A diagnostic sign is the browning of the vascular ring in a cross-section of the stem, and in cases of severe infection, a fungal growth may be observed on the plant surface.

The intensity of disease development depends on temperature conditions, with the range of +21°C to +26°C considered optimal. The disease is more pronounced in light soils, during sharp fluctuations in humidity and temperature, as well as in the presence of mechanical root damage or when growing monocultures. The pathogen is a polyphage and affects a wide range of agricultural crops.

Varietal resistance to this disease is based on a genetic mechanism that restricts the penetration and movement of the fungus through the plant's vascular system. During variety testing, the efficacy of cultivars is determined using artificial inoculation methods, which assess the visual degree of symptom development and the plant's ability to maintain productivity under infectious pressure.

Sources10

Breakdown by crop

Found in these crops

Tomato 2 546 Sunflower 234 Garden strawberry 150 Rapeseed 140 Olive 103 Tomato 100 Bell pepper 81 hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner 80 Alfalfa 65 Rapeseed 55 Upland cotton 47 Cotton 40

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

UCD Finn

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

University of California, Plant Sciences, Davis / University of California, Plant Sciences, Davis

5 records

Sweet Caroline Purple

Active

Ipomoea batatas (L.) Lam. · Sweet potato

Pecota Kenneth|Raleigh, NC / Yencho G. Craig|Washington, NC / Pierce Cynthia|Clayton, NC

5 records

UC Surfline

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

University of California, Plant Sciences, Davis / University of California, Plant Sciences, Davis

6 records

Merlot

Active

Cercis canadensis L. · Eastern redbud

Werner Dennis James / Snelling Layne Karlton

5 records

Malling Vitality

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Whitehouse Adam Barrie,Simpson David William,Johnson Abigail

6 records

Falco

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Suiker Marcel

6 records

Eva

Active

Sambucus nigra L. · Elderberry

Tobutt Kenneth Richard|Meopham, GB

5 records

DrisBlackTwenty

Active

Rubus L. subg. Rubus · Blackberry

Missael Bonifacio Romero Escobedo^^^Gavin R. Sills^^^Mark F. Crusha

5 records

Bonfire

Active

Begonia boliviensis A. DC. · Bolivian begonia

RJ Cross, NZ Institute for Crop & Food Rsch Ltd

5 records

Besys

Active

Beschorneria yuccoides hort. ex K. Koch

Graeme John Burton

5 records