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Displaying 21 to 32 of 32

  • National Plant Disease Recovery System: Plant Diseases That Threaten U.S. Agriculture

    • USDA. ARS. Office of Pest Management.

    • The National Plant Disease Recovery System (NPDRS) is called for in Homeland Security Presidential Directive Number 9 (HSPD-9) which was issued in February of 2004. The purpose of the NPDRS is to ensure that the tools, infrastructure, communication networks, and capacity required to mitigate the impact of high consequence plant disease outbreaks are such that a reasonable level of crop production is maintained in the U.S.

      These recovery plans are a cooperative effort of university, industry, and government scientists. The plans outline what the scientists know about the disease, indicate the current preparedness, suggest the best IPM approach, and recommend priority research and education needs.
      See also: Disease Recovery Plans (~26 plans published, with more in process)

  • PaDIL - Laurel Wilt

    • Australian Plant Biosecurity Cooperative Research Centre. Pests and Diseases Image Library.

  • Pest Alert: Laurel Wilt [PDF, 975 KB]

    • Oct 2019
    • USDA. FS. Southern Region. State and Private Forestry.

    • Laurel wilt is a disease of woody plants in the laurel family (Lauraceae). Hundreds of millions of redbay (Persea borbonia) trees have been killed by laurel wilt in the southeastern Atlantic Coastal Plain region of the United States (US). The disease has also killed large numbers of sassafras (Sassafras albidum) trees in forests and landscapes, and avocado (Persea americana) trees in commercial production. As of October 2019, laurel wilt was known to occur from Texas to North Carolina, south through Florida and north to Kentucky. Laurel wilt is expected to continue spreading through sassafras in the eastern US, and is a potential threat to California bay laurel (Umbellularia californica) in the western US and to lauraceous species elsewhere in the world.
      See also: Region 8 - Forest & Grassland Health for more information.

  • Pests & Diseases - Laurel Wilt Disease

    • Florida Department of Agriculture and Consumer Services.

  • Prevention is Key: Lessons from Laurel Wilt

    • Jul 22, 2021
    • USDA. FS. Southern Research Station. CompassLive.

    • Since 2002, forests in the southeastern U.S. have struggled against a disease called laurel wilt. In 18 years, laurel wilt has spread to 11 southeastern states and killed hundreds of millions of trees. A review article by USDA Forest Service scientist Rabiu Olatinwo reflects on the origins and spread of laurel wilt throughout the last several years. Olatinwo, a research plant pathologist at the SRS, published this research with recently retired plant pathologist Stephen Fraedrich and research entomologist Bud Mayfield in the journal Forests.

  • Redbay Ambrosia Beetle and Laurel Wilt

    • University of California - Riverside. Center for Invasive Species Research.

  • Southern Forest Health - Laurel Wilt

    • USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.

    • Includes species related publications, webinars and other resources.

  • Study Supports Single Introduction of Laurel Wilt Pathogen in the U.S.

    • Mar 2019
    • USDA. FS. Southern Research Station. CompassLive.

    • Laurel wilt has devastated plants in the Lauraceae family – redbay, sassafras, pondberry, avocado, and others – since it was first detected in the southeastern U.S. around 2002. There is no widespread, effective treatment for laurel wilt. Genetics research is focused on learning more about the pathogen's genetic structure in order to improve detection methods and screening for possible resistance in Lauraceae host species. "We have developed genetic markers to describe the population of the pathogen in the U.S.," says USDA Forest Service plant pathologist Tyler Dreaden. "Knowing which genotypes to use contributes to a quicker, more cost-effective resistance screening process." Dreaden led a new study to shed light on the genetic structure of the pathogen and its reproductive strategy. The research team included Marc Hughes at the University of Hawaii at Manoa, Randy Ploetz and Jason Smith at the University of Florida, and Adam Black, horticulture director of the Peckerwood Garden Conservation Foundation in Texas. Their findings were published in Forests.

  • TISI Inventory - Laurel Wilt

    • Texas State University System. Texas Invasive Species Institute.

  • Where Are They Now? Monitoring Firewood-Vectored Invasive Forest Pests in North Carolina [PDF, 875 KB]

    • North Carolina Department of Agriculture and Consumer Services. North Carolina Forest Service.

    • Emerald ash borer, laurel wilt disease, thousand cankers disease, and the European gypsy moth are likely to be brought into North Carolina in or on firewood. The use of local firewood is an important factor in preventing the spread of potentially devastating invasive species to our state's forests. Please keep this in mind as you prepare for your outdoor recreation activities. See Forest Health Invasive Pest Maps for more information about pest monitoring.

  • Woodland Health Threats - Laurel Wilt

    • University of Kentucky. College of Agriculturel, Food, and Environment. Department of Forestry and Natural Resources.

  • YouTube - Laurel Wilt in Florida

    • Google. YouTube; Florida Department of Agriculture and Consumer Service. Division of Plant Industry.