Tree Mortality
John Osbourn, Director of OES
Technical Questions: Dr. Richard Harris
891 Mountain Ranch Road
San Andreas, CA 95249
Mon - Fri: 8am - 5pm
Get Directions
PHONE: (707) 685-5508
Email Dr. Harris

Closed Weekends & Holidays

Items of Interest

Bark Beetles 5 February 2020

Bark Beetles

Beetle life cycle, are your trees susceptible, controlling beetles in firewood and managing beetles in trees.

Calaveras Task Force 5 February 2020

Calaveras Task Force

Calaveras Task Force Members and Meetings.

Dead Trees by Year 2010 - 2019 15 June 2020

Dead Trees by Year 2010 - 2019

Frequently Asked Questions 5 February 2020

Frequently Asked Questions

Tree Mortality and Bark Beetle FAQ's.

Resources 5 February 2020


Outside Agency Resources.

Tree Removal 5 February 2020

Tree Removal

Professional Foresters, Tree Services Companies and Tree Removal Schedules.

USDA 2019 Tree Mortality Data 9 March 2020

USDA 2019 Tree Mortality Data

Press & Alerts

Emergency Alerts 5 February 2020

Emergency Alerts

Sign-up for the Calaveras County Emergency Alerts.

What's New 5 February 2020

What's New

Upcoming Projects, Contracting Opportunities and Press Releases.