Pests and Diseases of Oak Woodlands
Michael Jones
University of California Cooperative Extension
Curtis Ewing
Forest Entomology and Pathology Program, CAL FIRE
Saturday, September 27, 2025
9 AM – 2 PM
4 ISA Continuing Education Units are available for this workshop.
Register: Click this link https://forms.gle/7ghRpAKV3FDCSNY7A
There are many pests and diseases that cause decline in oak trees. This workshop will explore the common pests of oaks, including a discussion of the biology of the pests and common symptoms and signs of infection. In addition to the common pests, learn about a new and potentially devastating invader in California’s oak woodlands, the Mediterranean Oak Borer!
The workshop will begin with brief classroom presentations discussing forest health issues, the biology of common oak pests, common diseases impacting oaks, and the symptoms to look for of infestation. Following the classroom presentations the workshop will proceed to a local field site in an oak woodland where signs of pests and disease will be observed and management options discussed.
4 ISA Continuing Education Units are available for this workshop.
Instructors
Michael Jones, PhD, Forest Advisor, UC Cooperative Extension – Mendocino, Lake & Sonoma Counties.
Michael conducts an extension forestry program that focuses on helping keep oak woodlands and coastal conifer forests healthy and resilient to future disturbance. His program encourages good stewardship by providing information, resources, and technical advice through education and research. Michael earned his PhD in Entomology at State University of New York, Environmental Science and Forestry. He has studied many endemic and invasive forest pest issues, including Mediterranean oak borer, goldspotted oak borer, sudden oak death, and the invasive shothole borers.
Curtis Ewing, Forest Entomology and Pathology Program, CAL FIRE, Cascade and Northern Sierra Region.
Dr. Curtis Ewing is a Senior Environmental Scientist with CAL FIRE, in the Forest Entomology and Pathology Program. Curtis earned a PhD in Forest Entomology from Cornell University and has studied plant-fungus-beetle disease dynamics in California and Hawai’i. He has also studied Lyme disease ecology, monitored invasive species, organized the annual Insect Pavilion for the State Fair at Cal Expo in Sacramento, and many other aspects of insect diversity, ecology, systematics, taxonomy and diversity.
WORKSHOP DETAILS & REGISTRATION:
Pests and Diseases of Oak Woodlands
Dates: Saturday, September 27, 2025
Schedule:
In-Class Lecture: 9:00 am – 11:30 am
Travel to Field site/Lunch: 11:30am – 12:30pm
Field Instruction: 12:30pm – 2:00pm
Location: Chico State University, and nearby Bidwell Park
(Field portion, attendees are responsible for their own transportation, carpool if possible).
Fee Structure:
$100 - 2025 Member of the Friends of the Herbarium
$135 – Non-members
$50 - Student (only 2 seats at this price with proof of current student enrollment)
What to bring: Bring a sack lunch (there will only be a short break before travelling to the field site), water and appropriate shoes and clothing for time in the field.
Register: Click this link https://forms.gle/7ghRpAKV3FDCSNY7A
or copy and paste this link into your internet browser to complete the online registration form.
Please register in advance
Size is limited to 24 participants; without minimum of 8 enrolled by 09/22/25, event is cancelled.
Payment by credit card (preferred) is NOT automatic. After registration review, a secure online payment link is manually generated. Payee will receive email from "Clover" with payment link within 3 business days of registration submission. It is recommended that you register early; registration processing will not occur during July. If paying by check, we may not be able to confirm your reservation until the check is received.
Registration Questions? (530) 898-5356
Workshop Questions? mjones@ucdavis.edu
You will receive more information on workshop logistics closer to the date of the workshop!
~ Workshop funds from this event are used to support the Ahart Herbarium at Chico State ~