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Jay Smith Road Sudden Oak Death containment

Historical referenceUpdated 8 September 2026
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A documented 2006 Humboldt Redwoods State Park project and a later research record concerning Sudden Oak Death suppression treatments at the Jay Smith site.

A 2006 Humboldt Redwoods State Park project#

On January 18, 2006, the California Department of Parks and Recreation filed a Notice of Exemption titled Jay Smith Road Sudden Oak Death Containment, State Clearinghouse No. 2006018194. The state described the project as being within Humboldt Redwoods State Park and designed to contain or slow the spread of what was then the northernmost Phytophthora ramorum infestation in Humboldt County. [1]

Primary record

Jay Smith Road Sudden Oak Death Containment#

Date
18 January 2006
Record type
Notice of Exemption
Agency
California Department of Parks and Recreation
Reference
State Clearinghouse No. 2006018194

What the record shows: the agency’s documented containment project description.

What it does not establish: conditions or treatment methods beyond the cited project and research records.

What Sudden Oak Death means#

Sudden Oak Death is a plant disease caused by Phytophthora ramorum, a fungus-like water mold. Its name can be misleading because the pathogen affects multiple tree and shrub hosts, not only true oaks. At the Jay Smith research site, published treatment descriptions focus on tanoak and California bay laurel. [3]

What treatment is documented at the Jay Smith site#

A U.S. Forest Service research report identifies two Jay Smith treatment conditions: removal of tanoak and California bay laurel without prescribed fire, and removal of those hosts followed by prescribed fire. It reports differences in fuel loads, host-tree regeneration, shrub establishment, and mortality between treated and untreated areas. [2]

Research record

Ten-year Sudden Oak Death treatment report#

Record type
U.S. Forest Service research report
Coverage
Jay Smith treatment conditions and comparative results

What the record shows: the report’s stated treatment conditions and observations over time.

Was this “black oak death spraying”?#

  • The disease’s correct name is Sudden Oak Death.
  • The available Jay Smith sources document host-tree removal with and without prescribed fire.
  • The research paper compares those results with an herbicide treatment in the broader study, but the present sources do not establish that the Jay Smith site itself was treated by spraying.

A separate project specification, pesticide-use report, or park treatment log would be needed before making that claim.

Three kinds of environmental evidence#

Environmental history here uses sources with different purposes. The CEQAnet entry identifies a dated State Parks project. The Forest Service paper reports research observations. A park management publication gives broader environmental context. Keeping the purposes separate makes their contributions clearer.

The official project name#

The notice record page preserves the title and State Clearinghouse number of the 2006 project. This is independent agency documentation of the name Jay Smith Road. The entry does not supply a complete history of the road or define all of its limits.

The research publication#

The Forest Service record page identifies the 2017 proceedings paper and links to both the agency catalog and the PDF. Its title is Conditions 10 Years After Sudden Oak Death Suppression Treatments in Humboldt County, California. The record page notes a difference between the authors listed on the catalog page and those printed on the paper.

The Jay Smith figure captions identify host removal with and without prescribed fire. This is the basis for the treatment description above. Comparisons in the broader paper should not be assigned to the Jay Smith site unless the text identifies them as such.

The broader park context#

The 2019 final-draft Humboldt Redwoods Road and Trail Management Plan names Jay Smith Road in its discussion of Sudden Oak Death in southern Humboldt County. It also discusses the Avenue of the Giants corridor. This dated source adds environmental context; it is not a statement about conditions today.

Following the environmental record#

A useful research sequence is to open the notice, record its title and identifier, and then read the later paper as a separate publication. Distinguish an agency's intended project objective from observations reported after treatment. Neither a proposal nor a dated study should be restated as a guaranteed current outcome.

The Jay Smith Road regional overview explains the Avenue of the Giants and Humboldt Redwoods setting. The official State Parks page provides the park's maps and current visitor information. The historical maps guide explains the different uses of park and survey mapping.

The environmental record belongs alongside the library's survey, utility, and water material, but it does not fill gaps in those records. For example, it does not establish the water source named only indirectly through a tank reference in the historical deeds. Each topic remains tied to its own sources.

Continue through the historical timeline, the public source register, or the homepage environmental summary.

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