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Home → Publications → National Nursery Proceedings → 2013 → The Threat of Hybrid Phytophthoras

The Threat of Hybrid Phytophthoras

The majority of invasive plant pathogens have resulted from the introduction of exotic organisms. However, another mechanism for invasiveness results from hybridization between species. This phenomenon has been documented in plants and animals, but its role in plant pathology has only recently been recognized. With more than 100 species of Phytophthora identified to date, and little information regarding their biogeography and native habitat, Phytophthora hybrids are difficult to detect. Unfortunately, recent taxonomic surveys for Phytophthora in the nursery, greenhouse and landscape have identified multiple hybrids involving different parental species. Their spread via the international plant trade poses significant risks to ecosystems throughout the world.


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Author(s): Janna Beckerman, Stephen Goodwin, Kevin Gibson

Publication: National Nursery Proceedings - 2013

Event: Joint meeting of the Northeast Forest and Conservation Nursery Association and Southern Forest Nursery Association
2013 - Lafayette, Indiana