First Report of Powdery Mildew of Convolvulus arvensis (Field Bindweed) Caused by Erysiphe convolvuli var. convolvuli in North America

Abstract

Field bindweed (Convolvulus arvensis L.) is widespread in the Pacific Northwest where it is considered a noxious weed. During 2002, collections of a powdery mildew fungus attacking C. arvensis were made from Pierce, Spokane, Whitman, and Yakima counties, WA. Based on morphological features we determined the fungus to be Erysiphe convolvuli. Accepted for publication 22 September 2003. Published 21 October 2003.

Effects of field bindweed (Convolvulus arvensis L.) and powdery mildew [Leveillula taurica (Lev.) Arn.] on pepper growth and yield - Short communication

“…Crops suffer enormously from field bindweed which competes for nutrients and water (Aneja, Srivinas 1990). Powdery mildew was observed on (Glawe et al 2003).…”

“…Its deep and extensive root system, together with its long-lasting seed bank, is a key feature to the noxious weed status that it receives worldwide (Gianoli 2001). Crops suffer enormously from field bindweed which competes for nutrients and water (Aneja, Srivinas 1990) and harbours parasitic fungi (Glawe et al 2003). Powdery mildew caused by L. taurica (Lev.)…”

Powdery mildews on weeds in the Pacific Northwest: a miscellany of new records

“…G. sordidus occurs on numerous species of Plantago (Braun 1987) including P. major (usually as E. cichoracearum, a name formerly applied more widely than at present) in Montana, Washington and various locations outside the PNW (Farr et al n.d.). Glawe et al (2003), who gave a detailed, illustrated description of the fungus. (Glawe n.d.).…”

First report of Erysiphe convolvuli on Convolvulus arvensis and Calystegia sepium in Chile with a description of the sexual state

“…Two specimens, labeled as E. convolvuli, are held by the phytopathological herbarium of the Universidad Austral de Chile; nevertheless, the species has never been officially reported and is not included in the most complete checklist of fungal phytoparasites in Chile (Mujica & Vergara 1980). The fungus has been also recently described for North America (Glawe et al 2003) and Turkey (Sert et al 2006).…”

“…(Braun 1995) and Leveillula taurica (Lév.) Arnaud (Glawe et al 2003). Three varieties of E. convolvuli are described, regarding the number of ascospores per ascus and the associated host.…”