COSCA, Ventura County Fire outline fuels strategy; residents urge habitat protections

COSCA staff and Ventura County Fire Department (VCFD) officials on Thursday outlined how local fuel-management work, neighborhood home-hardening and targeted fuel breaks fit together to reduce wildfire risk in Thousand Oaks, while residents urged the agency to protect native habitat and avoid sweeping vegetation removal beyond the 100-foot defensible-space standard.

COSCA Land Manager Brian Stark described the Conejo Valley—s fire history, dominant vegetation and the agency—s science-based approach to fuels work. "Fire behaviors and associated management considerations do vary by dominant vegetation type," Stark said, adding that the valley—s shrub-dominated chaparral and coastal sage scrub burn differently than forested areas and are adapted to returns of 30 to 150 years. He noted most local ignitions are human-caused and that the area—s largest home losses were associated with the Woolsey Fire in 2018.

The agency reiterated adherence to a 100-foot defensible-space standard. "One hundred feet is sufficient to prevent heat and flame ignitions, but is ineffective against ember ignitions," Stark said, and emphasized that home hardening and neighborhood-level efforts matter most for preventing ember-driven structure loss.

Stark reviewed COSCA—s current projects and programs: a multi-year Arundo Donax removal in Arroyo Conejo with small-palm removals completed and funding sought for larger palms; mapping and prioritized treatment for tumbleweed (Russian thistle); enhanced fuels-management projects outside…