Disease Progression of Phytophthora ramorum and Botryosphaeria dothidea on Pacific Madrone

Phytophthora ramorum

Fungicide Control of Phytophthora ramorum on Rhododendron

Commercial rhododendron plants have been the most important hosts of Phytophthora ramorum in Europe. As part of the European Union (EU) emergency phytosanitary measures 2002/757/EU and 2004/426/EU all commercial rhododendron-growing premises are surveyed for P. ramorum. Detection of P. ramorum leads to quarantine measures, including destruction of plants, and could lead to considerable financia...

Phytophthora ramorum in North America

Two apparently unlinked events marked the beginning of one of the most devastating forest diseases known to man in recent times: Sudden Oak Death (SOD). In the mid 1990s, while a novel species of Phytophthora was being isolated from mildly diseased Rhododendron and Viburnum plants in German and Belgian nurseries, the first reports of inexplicable death of tanoaks (Notholithocarpus densiflorus) ...

Molecular Identification and Detection of Phytophthora ramorum

The genus Phytophthora comprises over 70 described species, however many new species have been reported recently as a result of the discovery of previously undetected species or by the hybridization of known species. Phytophthora ramorum, one of the new Phytophthora species, is considered a high phytosanitary risk because it is currently responsible for largescale oak mortality in coastal Calif...

First Report of Gummosis Caused by Botryosphaeria Dothidea on Man- Go Trees in Guangxi, South China

1Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China 2Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Nanning,Guangxi 530007, China 3Department of Biotechnology, Guangxi Agricultural VocationTechnical College, Nanning, Guangxi 530007, China 4School of Environmental Sciences, University of Guelph, Guelph, Ontario N1G 2W1, ...