Diseases

Leaf spots — Creeping bentgrass

Agrostis stolonifera L.

A group of infectious diseases of creeping bentgrass, caused primarily by the fungi Drechslera erythrospila and Bipolaris sorokiniana, manifesting as necrotic spots on leaf blades.

In the reference 53 varieties crop Creeping bentgrass, where this is mentioned in the description.

The primary pathogens causing leaf spots on creeping bentgrass are Drechslera erythrospila, which causes red leaf spot characterized by oval lesions, and Bipolaris sorokiniana, which triggers the development of dark spots followed by infection of stems and roots. Infection development is most active under warm and humid weather conditions, leading to tissue necrosis and significant suppression of the turfgrass stand.

Breeding for resistance to these pathogens is based on the study of quantitative traits and the mapping of quantitative trait loci (QTLs), as specific resistance genes have not been described for this crop. In variety descriptions, rating scales based on field trial results are used to assess susceptibility rather than classification by intraspecific pathogen races.

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

Sources8

Varieties of Creeping bentgrass 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.