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Occurrence and prevalence of chytrid fungus (Batrachochytrium dendrobatidis) in amphibian species of Alberta

Description

Infectious diseases are one of a suite of factors implicated in the declines and extinctions of amphibians worldwide. One such disease, chytridiomycosis, is caused by the chytrid fungus... More ≫

Description

Infectious diseases are one of a suite of factors implicated in the declines and extinctions of amphibians worldwide. One such disease, chytridiomycosis, is caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd). Chytrid fungus was discovered in Alberta in 1999 from necropsies of several specimens of boreal toads and northern leopard frogs collected near Caroline. In late 2006, a pilot-study was conducted to determine whether Bd was present at northern leopard frog sites in southern Alberta. The detection of Bd at multiple sites, and in a provincially Threatened species, led to the expansion of Bd surveillance to other areas of the province, and to other amphibian species between 2007 and 2010. The results, reported in this study, provide a base-line for the occurrence and prevalence of Bd in Alberta. This information is required for the effective conservation and management of a broad suite of amphibian species, many of which are of high conservation concern in Alberta.

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Disease forecasting for Sclerotinia white stem rot in canola

Description

A round five million acres of canola are now grown annually in Alberta. Sclerotinia white stem rot is one of the most destructive diseases of this crop. To help canola growers predict outbreaks... More ≫

Description

A round five million acres of canola are now grown annually in Alberta. Sclerotinia white stem rot is one of the most destructive diseases of this crop. To help canola growers predict outbreaks of sclerotinia white stem rot, a disease forecast system was developed. The forecast system is a checklist that assists growers to make a decision on the need for applying a foliar fungicide. The check list came into being as a consequence of disease control trials carried out in 1981 and 1982

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