Diseases

Anthracnose

Colletotrichum

Anthracnose is a group of fungal diseases affecting the aerial parts of plants, manifesting as spots, sunken lesions, and fruit rot. The disease is triggered by high humidity and warm weather, and variety resistance is evaluated through field trials and genetic markers.

Mentioned in descriptions 4 771 varieties reference book.

Anthracnose refers to a group of diseases caused by fungi of the genus Colletotrichum that affect all aerial plant organs. The disease manifests as the appearance of yellow to brown spots on leaves, sunken oblong lesions on stems and petioles, as well as rot lesions on fruits, which are often covered with a pink or orange sporulation bloom.

Pathogen development is most active in temperate climate conditions at relative humidity levels of 80–90% and temperatures of 22–30 °C. Other risk factors include the presence of free water, mechanical tissue damage, high soil acidity, and potassium and phosphorus deficiency.

Evaluation of variety resistance is conducted during field trials under natural or artificial infectious backgrounds, where susceptibility is compared to a standard. Modern breeding programs supplement this process by using molecular genetic markers to identify resistance genes, while accounting for cultivar specificity to particular pathogen races.

Sources10

Breakdown by crop

Bean anthracnose 375 Watermelon Anthracnose 257 Cucumber Anthracnose 81 Anthracnose of blackcurrant 65 Anthracnose of strawberry 64 Alfalfa Anthracnose 57 Anthracnose of red currant 53 Walnut anthracnose 46 Grape Anthracnose 45 Anthracnose of Red Clover 42 Anthracnose of narrow-leafed lupin 34 Gooseberry anthracnose 31 Anthracnose of white lupin 27 Olive anthracnose 26 Pea anthracnose 25 Raspberry Anthracnose 20 Maize anthracnose 19 Grape Anthracnose 17 Anthracnose of flax 16 Cherry anthracnose 16 Melon Anthracnose 15 Anthracnose of Yellow Lupin 15 Anthracnose — Creeping bentgrass 12 Pepper Anthracnose 10

Found in these crops

Common bean 377 Watermelon 254 Cucumber 77 Blackcurrant 65 Garden strawberry 63 Alfalfa 57 Redcurrant 53 Persian walnut 46 Grapevine 45 Red clover 43 Gooseberry 31 Narrow-leaf lupin 29

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.

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.