Two communities in California’s forested regions are taking contrasting approaches to post-wildfire forest recovery, highlighting broader tensions over land management and the use of herbicides in fire-ravaged landscapes.
In the Lake Tahoe Basin, residents are divided over the Forest Service’s plan to use the herbicide glyphosate to control rapidly growing shrubs that threaten the survival of young conifers after recent wildfires. Some foresters and fire ecologists warn that without intervention, fast-growing brush will outcompete the baby conifers for sunlight, water, and nutrients, leaving the forest vulnerable to future fires. Because seedlings have not yet grown tall enough to protect their branches from flames, another wildfire could wipe out much of the regrowth.
However, many locals oppose the use of glyphosate, citing health and environmental concerns. The Forest Service’s previous public notices about the herbicide’s application reportedly did not reach a broad audience, fueling mistrust among residents. “I’ll never see it like it was in my entire lifetime, and we need to be OK with that,” said Madeline Moritsch, a longtime Tahoe resident, reflecting a willingness among some in the community to accept natural regeneration without chemical intervention.
The controversy intensified following media coverage of the Forest Service’s herbicide use throughout California, prompting debates over whether human intervention should play such a role in forest recovery. Forest Service officials acknowledged ongoing efforts to engage public feedback and emphasized precautions taken during herbicide application, including signage, dye markers, and restrictions near water bodies to minimize unintended exposure.
About 100 miles northwest of the Tahoe Basin, communities in Butte County, heavily impacted by the 2018 Camp Fire, have embraced more active forest restoration practices. The Butte County Fire Safe Council, a coalition of foresters, firefighters, and fire survivors, advocates using multiple tools—including herbicides—to reduce wildfire risks and promote forest healing. “It’d be completely reasonable that people feel slighted if they were to have something happening in their proverbial backyard without knowing about it,” said Connor Gilmartin, the council’s director of development, acknowledging the importance of transparency in these efforts.
Experts explain that historically, frequent low-intensity fires maintained forest health by thinning dense vegetation in the Sierra Nevada region. Decades of fire suppression combined with hotter, drier conditions due to climate change have created overly dense forests loaded with combustible material, intensifying wildfires. After high-intensity fires, fast-growing shrubs often dominate the landscape, suppressing conifer regeneration unless land managers intervene.
Options such as grazing goats and manual clearing exist but have limitations, particularly when addressing large burned areas. Herbicides like glyphosate are widely regarded as one of the most cost-effective and efficient tools for controlling unwanted shrubs. Despite debate over glyphosate’s safety—where the U.S. Environmental Protection Agency finds it unlikely to cause cancer but the World Health Organization’s cancer agency classifies it as a probable carcinogen—many forestry professionals emphasize its relative safety and efficacy when applied with caution.
Meanwhile, Indigenous voices add another dimension to forest restoration strategies. Matthew Williford Sr., tribal chairperson of the Konkow Valley Band of Maidu near Butte County, describes efforts to reconnect with traditional land stewardship practices disrupted since cultural burning was banned in California in 1850. Working with the Forest Service, his tribe is restoring areas like the “Place of the Grasshoppers” to an open oak-dominated landscape reflective of ancestral ecosystems. Invasive species such as French and Spanish broom are controlled using herbicides, as manual removal risks damaging culturally significant sites.
“The land will respond,” Williford said, illustrating the ongoing collaboration between tribal knowledge and contemporary forest management to rebuild resilient ecosystems. As different communities weigh options for forest recovery, the balance between natural regeneration, cultural values, and technological interventions like herbicide application remains a critical and evolving conversation across fire-affected regions.