Malibu, California: A model for grassroots opposition to pesticides

“How could intelligent beings seek to control a few unwanted species by a method that contaminated the entire environment and brings the threat of disease and death even to their own kind?” – Rachel Carson

I am pleased to publish a guest article about a grassroots effort to reduce the use of pesticides in Malibu, California, a community of about 10,000 on the coast of Southern California.  Malibu is famous as the residence of Hollywood celebrities and executives and surfers attracted by 21 miles of beaches with world-class surfing conditions. 

City of Mallibu. Wikipedia – Creative Commons

The author, Kian Schulman, and her husband, Joel Schulman, are founding members of the Malibu-based nonprofit Poison Free Malibu, a group that has had much success protecting local wildlife, children and pets in the Santa Monica Mountains and throughout California by educating the public and policy makers about the dangers associated with pesticides.

I hope the impressive accomplishments of Poison Free Malibu will inspire readers to participate in such efforts in your community in 2025. 

Happy New Year!  Best wishes for a more peaceful 2025. 

Conservation Sense and Nonsense

Grassroots Power is a Strong Voice!

In the fight against harmful pesticides, the coastal community of Malibu, California is a model for the power of grassroots activism and persistent community engagement, which has significantly reduced the use of pesticides in Malibu. 

Chemical companies like Bayer (Monsanto), Dow, Syngenta, and others have expanded beyond agricultural markets, targeting “invasive” and “non-native” species in nature preserves with toxic pesticides. The Santa Monica Mountains surrounding Malibu are replete with “invasive species,” targets for eradication with herbicides, downplayed by claims of so-called Integrated Pest Management policies. 

The Santa Monica Mountains are wildfire prone. In December 2024, the Franklin Fire threatened the campus of Pepperdine University in Malibu, burned over 4,000 acres, multiple homes, and displaced many residents.  Various methods of fuels management are available, but herbicide is the primary tool because it is the cheapest method. I ask, “What is the price tag to our health and the entire ecosystem?”  

The Pesticide Problem

The impacts of pesticide exposure on our health are profound. Pesticide exposure has been linked to a rising tide of serious health problems, including cancer, Parkinson’s disease, diabetes, reproductive failures, developmental disorders, and autism. (1)

Pesticides and other chemicals can persist in soil for decades, contaminating soil and watersheds with toxic breakdown products.  In 2021, Scientific American published an article about a meta-analysis of nearly 400 studies that examined 275 soil organisms and 294 different pesticides. In 70% of those experiments, pesticides were found to harm the organisms that are critical to maintaining healthy soils.  Tens of thousands of subterranean species of invertebrates, nematodes, bacteria and fungi are filtering our water, recycling nutrients, and helping to regulate the planet’s temperature.  The EPA, which is responsible for approving chemicals for the market, is not presently required by law to test the effects of chemicals on the soil. 

The widespread use of these poisons are also harming wildlife. Rodent poisons used to kill small rodents don’t stop there.  Other non-target animals are often killed as well, either by eating the bait directly or eating the poisoned rodents.  Many top predators, such as mountain lions and bald eagles, have been killed by rodent poisons that work their way up the food chain. 

Market size of rodenticides in the US, 2014 to 2025 (in million US dollars)

Malibu’s Transformative Journey

In 2012, local activists began investigating the city’s pesticide use, discovering a shocking reality. Malibu’s parks and public spaces were being treated with a cocktail of toxic chemicals, including glyphosate (RoundUp), 2,4-D, triclopyr (Garlon), pre-emergents and others, often applied in areas where children and pets play.

RoundUp being sprayed in a Malibu public park while child cycles nearby.

Protecting Wildlife

Poison Free Malibu was activated in 2012, after a mountain lion was found dead in a local park with rodent poison detected in the autopsy.  Reducing rodent poison exposure has always been one of our primary objectives.  All top predators of rodents are at risk of rodent poisoning:  “The vast majority of bald and golden eagles in the United States are contaminated with toxic anticoagulant rodenticides…” (2) 

Poison Free Malibu addressed this issue in a variety of ways:

  • We asked local businesses selling rodent poisons to quit selling them.  No stores in Malibu now sell rodent poisons.
  • We asked businesses and organizations to remove bait boxes from their premises. 
  • We approached 10 neighboring cities to suggest that they pass resolutions banning the use of rodent poisons in their communities.  Animals are on the move, so broader protections are needed for them.
  • We helped pass three state bills to prohibit the use of 3 specific rodent poisons in California.  Unfortunately, these laws have exceptions, including one for using rodent poisons on off-shore islands to kill rodents. The pesticide industry was quick to respond to the new restrictions by promoting other, still allowed but extremely dangerous rodent poisons such as bromethalin and cholecalciferol.  Both of these have NO antidote, endangering wildlife and pets. According to the National Park Service, bromethalin was detected in 10 out of 16 mountain lions tested in the Santa Monica Mountains from July 2020 to August 2022.
  • We helped to pass a Dumpster Lid Lock Ordinance in Malibu.  In both commercial and residential areas, this ordinance was key to eliminating rodent issues.

Changing Public Policy

As we learned about the extensive use of a wide range of pesticides in Malibu it became clear that a broader effort was needed.  We petitioned our city for an Earth Friendly Management Policy, which bans the use of all toxic chemical pesticides in EPA 1, 2, and 3 categories of toxicity.  The city now relies on organic solutions, environmental enrichment, and “Expel, Deter, and Repel” tactics.

There is a National Park and a State Park in Malibu that also use pesticides on our public lands.  We had to negotiate directly with those organizations that are not subject to our city policies.  Following numerous meetings with State and National officials, we reached an agreement to establish hand weed-pulling events. This initiative has proven highly successful.

Public Education

The support of the public is needed to achieve changes in public policy.  Educating the public about the dangers of pesticides is therefore an important part of our strategy:

  • We reached out to school systems, other local cities, and counties, to bring these issues to their attention. Many have adopted pesticide-free policies, most recently Ojai just on December 10, 2024.
  • We received grants from our city and county to help us with our outreach efforts, such as developing coloring books, distributing hundreds of yard signs, and putting up billboards throughout Los Angeles.

Not the end of the story

Despite these many important accomplishments, our work is never done.  Legislative hurdles to our progress exist because of opposition from various government agencies, such as the Wildlife Conservation Board, the Department of Pesticide Regulation, the Environmental Protection Agency, CalTrans, and the California Department of Food and Agriculture.  There is regrettable opposition from many non-profit organizations that champion the use of pesticides to kill so-called “invasive” species, such as the California Invasive Plant Council and the American Chemistry Council, a trade association representing manufacturers of chemicals.

Our work is never done, but the grassroots movement in Malibu proves that collective action can transform seemingly insurmountable challenges into opportunities for positive change.

Kian Schulman, RN, MSN
Director, Poison Free Malibu
Contact: PoisonFreeMalibu@gmail.com | 310-456-0654
Website: PoisonFreeMalibu.org


(1) “Wide Range of Diseases Linked with Pesticides,” Pesticides and You, Summer 2010

(2) https://beyondpesticides.org/dailynewsblog/2021/04/study-finds-eagle-populations-experiencing-widespread-rodenticide-exposure/

A Reprieve for Wildlife on the Farallon Islands

This is a good news/bad news story.  First the bad news, because it contains kernels of good news.  The federal budgets of the entire National Wildlife Refuge System are being cut, including the budget for the Farallon Islands, which has funded the research of Point Blue Conservation on the islands for over 50 years.  This cut comes on the heels of a long-term decline in funding of the wildlife refuge system from $765 million in 2010 to $527 million in 2023.  It seems safe to assume that this loss of funding will have a negative impact on these fragile ecosystems, but in the case of the Farallon Islands, we also foresee some benefit to wildlife.

Farallon Islands, NOAA

Point Blue has maintained a year-round presence on the Farallons that will be curtailed in 2025 due to the loss of funding, leaving the island vulnerable to unauthorized visitors and activities in the winter.  It will reduce the ability to monitor wildlife populations and maintain long-term datasets that identify trends in wildlife populations. 

So, what is the good news?  For the moment, the plan to aerial broadcast nearly 2 tons of rodenticide bait on the islands to kill harmless house mice has been abandoned because it cannot be financed.  A brief reminder of why that is good news:

  • Thousands of non-target birds and marine animals are likely to have been killed by eating the bait directly or by eating poisoned house mice.  The plan and its Environmental Impact Statement (which has not been certified), predict 1,100 collateral deaths of Western gulls.  Delayed and inadequate reporting of non-target deaths by similar projects suggest numbers may be greater. 
  • House mice on the Farallons do not need to be eradicated because there is no evidence that they harm birds on the Farallons.  The only evidence of mice eating bird chicks of which I am aware were albatross chicks, a naive species that spends their life in the air except to nest in a few places in the Southern Hemisphere, but not on the Farallons.  Native mice live unmolested on other off-shore islands in California.  Native mice were removed from Anacapa Island prior to the rodenticide drop to kill rats and were returned after the drop.  House mice on the Farallons are targeted solely because they are non-native (and anecdotally because they are an annoyance to research staff who stay in dilapidated housing from which mice cannot be excluded).   
  • The bizarre explanation for killing house mice is that they attract a small population of burrowing owls, who allegedly eat bird chicks.  The burrowing owls could be removed from the Farallons, as Golden Eagles were removed from Santa Cruz Island to save the Channel Island Fox. 

More Good News

It seems likely that the budget cut will also reduce the application of herbicides on the islands to kill non-native vegetation.  Roundup (glyphosate) has been used by Point Blue Conservation on the Farallon Islands every year since 1988.  Between 2001-2005, an average of 226 gallons of herbicide were used annually (5.4 gallons per acre per year), according to the annual report of the Farallon National Wildlife Refuge. (1)

63%-80% of the vegetation on the Farallons is non-native. (2) The non-native vegetation that is being needlessly sprayed with herbicide was brought to the islands by birds who ate them elsewhere and/or by wind and ocean currents.  They cannot be eradicated because they cannot be excluded from an open ecosystem, just as house mice cannot be excluded from a dilapidated building. They are useful to wildlife and it is pointless to contaminate the ecosystem with herbicide. 

House mice on the Farallons are also accused of eating rare insects and competing with rare salamanders for food.  The study of the diet of mice on the Farallons (2) reports that mice also eat insects when vegetation becomes scarce in the fall.  If useful non-native vegetation weren’t being killed, there would be more food for all animals on the islands, including house mice, who prefer vegetation to insects.

In Conclusion

I am not in a position to evaluate the over-all impact of cuts in the budget to the National Wildlife Refuge System.  It seems likely that the overall impact on our refuges is negative.  I can only evaluate the impact on the only wildlife refuge system that I know well enough to say that the budget cut will be a reprieve for wildlife on the Farallon Islands because it is likely to reduce the unnecessary use of herbicides and it will spare the entire ecosystem from the planned aerial broadcast of anti-coagulant rodenticide bait. 

I am one of thousands of people who have vocally opposed the planned rodenticide drop for over 10 years.   We cannot claim credit for this reprieve.  The budget cut was not a surgical removal of the poison drop.  Rather it was a hatchet job.  That should not prevent us from celebrating the good fortune of the animals who will be spared.

Going Forward

I do not consider the issue of island eradications with rodenticides resolved, but I am grateful for a delay on the Farallon Islands.  The drop is likely to happen if private funding can be found for it and the federal budget for wildlife refuges could be increased in the future.

I always have hope that those who believe non-native plants and animals are harmful will come to their senses one day.  Non-native plants and animals are integral members of the food web.  As newcomers, they represent new opportunities for natural selection to find the adaptations needed to survive in our changed and changing environment.  We hope that US Fish and Wildlife Service will be deprived of the funding to continue their crusade against house mice long enough to figure this out.  They are smart, highly educated, and well-meaning people.  Surely they will figure it out eventually, hopefully in time to save wildlife on the Farallons.


Here are the articles about the mouse eradication project on the Farallons that I have published.  They provide more details about the damage done by other island eradications around the world:

The mouse eradication project on the Farallon Islands: The “con” in conservation
Island eradications in the Bay Area rear their ugly head again
It’s time to comment on the deadly project on the Farallon Islands
“When the Killing’s Done”  Maybe never
Deadly Dogma:  Revisiting the unnecessary project on the Farallon Islands
EPA’s biological evaluation of rodenticides is green wash for island eradications

References:
(1)https://drive.google.com/file/d/1XoPcS104SeOUIyfbPT_NbardctNyWAgs/view
(2) https://www.biorxiv.org/content/10.1101/2022.02.23.481645v1.full

Sources for this article: 
https://www.sfchronicle.com/climate/article/farallon-islands-research-19444987.php
https://www.pointblue.org/our-work/oceans/support-our-national-wildlife-refuges/
https://www.marinij.com/2024/06/04/farallon-islands-wildlife-research-is-in-trouble-2/