Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Phytophthora ramorum"”.
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Analysis of symptom expressions and transmission rates caused by the plant pathogen Phytophthora ramorum on native chaparral plants from the genus Arctostaphylos
<p><em>Phytophthora ramorum </em>is the causal agent of Sudden Oak death (SOD), ramorum dieback and ramorum leaf blight which affect both forest environments and nurseries. This oomycete pathogen has had a huge economic impact on the nursery and lumber industry. Forests in California have …
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Fungi Associated with Herbaceous Plants in Coastal Northern California
… one of the species identified in this study (<em>Phytophthora ramorum</em>, Oomycota) has not been found to be associated with the host plant it was isolated from (<em>Marah fabacea</em>) thus far. No significant effect of seasonality, geographic location, and soil type on microbial biodiversity …
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Distribution and Frequency of Aquatic Oomycetes Throughout Marin County in Relation to Physical Chemical Water Parameters
… and saprophytes. Important species include <em>Phytophthora ramorum </em>(causal agent of sudden oak death), <em>Pythium aphanidermatum</em> (root rot), and <em>Phytophthora infestans </em>(late potato blight), all major threats to the environment, agriculture, and the economy. Although many …
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Protecting valuable resources using optimal control theory and feedback strategies for plant disease management
… sudden oak death, a tree disease caused by Phytophthora ramorum. Sudden oak death is a devastating disease spreading through forests in California and southwestern Oregon. The disease is well established and eradication is no longer possible. The ongoing spread of sudden oak death is …
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Preparing plant collections for biological invasions: a study of the effects of emerald ash borer (Agrilus planipennis Fairmaire) through case study analysis
… (Adelges tsugae Annand), sudden oak death (Phytophthora ramorum Werres et al.), and Asian cycad scale (Aulacaspis yasumatsui Takagi) that are affecting institutions in other regions of the United States. To aid in research initiatives, such as resistance breeding pertaining to the EAB …