First Report of Dollar Spot, Caused by Sclerotinia homoeocarpa, on Poa pratensis in Saskatchewan, Canada

Diversity and Biology of the Dollar Spot Organism, Sclerotinia homoeocarpa, and Its Implications

Effect of Azoxystrobin on Dollar Spot Disease Development in Creeping Bentgrass (agrostis Stolonifera) and Kentucky Bluegrass (poa Pratensis)

Dollar spot disease, caused by the fungus Sclerotinia homoeocarpa F.T. Bennett is common on intensively managed creeping bentgrass (Agrostis stolonifera L.) and annual bluegrass (Poa annua L.), and other turfgrasses. Frequent chemical applications during the growing season are made to control this disease. Previous observations state that application of fungicides such as azoxystrobin can incre...

Relationship between Cultural Factors and Nematodes on Merion Kentucky Bluegrass.

A 2-year study was conducted on Merion Kentucky bluegrass turf (Poa pratensis) to identify potential relationships among seasonal population dynamics of nematodes, chemical applications, thatch, tillering, dollar spot caused by Sclerotinia homoeocarpa, clipping weight, and other factors. Numbers of Tylenchorhynchus maximus determined during June were inversely related to the wet weight of grass...

Rapid development of fungicide resistance by Sclerotinia homoeocarpa on turfgrass.

Dollar spot, caused by Sclerotinia homoeocarpa, is the most prevalent and economically important turfgrass disease in North America. Increasing levels of fungicide resistance, coupled with tightening environmental scrutiny of existing fungicides, has left fewer options for managing dollar spot. More knowledge about S. homoeocarpa populations is needed to improve dollar spot management strategie...

Sensitivity of Sclerotinia homoeocarpa to demethylation- inhibiting fungicides in Ontario, Canada, after a decade of use

In late 2003, nine populations of Sclerotinia homoeocarpa in Ontario Canada (seven of which had been previously sampled in early 1994, prior to the registration of sterol demethylation-inhibiting (DMI) fungicides for turf disease control in Canada) were sampled and tested for sensitivity to propiconazole. Four of the nine populations had not been treated with DMI fungicides during the interveni...