US Forest Service Research & Development
Contact Information
  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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Steven J. Seybold

Research Entomologist
1731 Research Park Drive
United States

Phone: 530-759-1734
Contact Steven J. Seybold

Current Research

Seybold is a research entomologist who specializes in the study of bark and wood-boring beetles. He and his colleagues are characterizing the invasive bark beetle and woodborer fauna of California and other Western U.S. States. The discoveries and descriptions of the life histories and behaviors of these insects are an important first step to understanding their pest status in U.S. forests. Seybold and colleagues also were the first to isolate specific genes from bark beetles that the insects use to detoxify defense chemicals released by trees under attack. The isolation of these genes provides a site for the next generation of bark beetle control tools.

Research Interests

In the future, Seybold plans to explore issues of drought and bark beetle-caused tree mortality, bark beetle and woodborer invasions of California's national forests, and new threats to native oaks and walnuts.

Professional Organizations

  • Entomological Society of America, Member
  • Entomological Society of Canada, Member
  • International Society of Chemical Ecology, Member



Research Highlights


Delimiting the invaded range of the goldspotted oak borer, a threat to red oaks in California and Oregon

The goldspotted oak borer, Agrilus auroguttatus, traveled in infested firewood from southeastern Arizona into southern California where it is ki ...


Monitoring Tool for the Insect Vector of Thousand Cankers Disease of Walnut

A newly discovered pheromone can be used to detect the insect vector of thousand cankers disease of walnut. Intermediate and low population den ...


Scientists Develop Successful Lure to Attrack Beetle That Causes Thousand Cankers Disease in Walnut Trees

In response to the threat posed by the walnut twig beetle, which spreads thousand cankers disease in walnut trees, the Forest Service's Pacific ...


Wingnut trees at risk to thousand cankers disease

The walnut twig beetle vectors a fungus that colonizes and kills the plant tissure known as phloem of walnut and butternut trees. Over the past ...


Last updated on : 07/01/2020