Our mission is to educate the public about the problems with pesticides, how they affect the wildlife food web and our total environment, and to offer viable solutions. Pesticides are in the air we breathe, the water we drink and the food we eat. The overall health of our children, pets, wildlife and environment is our goal.
We are a 501(c)(3) nonprofit (ID 95-4116679)
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Facebook: Poison Free Malibu Facebook Page
Table of Contents of Pages
- Pesticides in Our Environment
- Pesticides in Our Schools
- Soil Regeneration
- All Things Are Connected
- References for Green Organizations
- Alternatives for Rodent Control Without Poisons – Repel Exclude Deter
Got Mice/Rats?, Got Gophers/Ground Squirrels? Got Moles?
Click here for Protecting Cars/Automobiles section
- News Articles
- Poisoned Animals
- Particular Issues:
- Got Ants?
- Got Bait Boxes?
- Got Bees?
- Got Butterflies?
- Got Bleach?
- Got Cats?
- Got Coyotes?
- Got Disinfectants?
- Got Dumpsters?
- Got Earwigs?
- Got Fleas?
Rodent Poison Information on this page:
- Photos of Affected Animals
- City of Malibu Resolution Opposing Rodent Poisons
- The Chain of Death and statistics on poisoned animals
- Danger to Children and Pets
- Poison bait stations/boxes – the source of much of the poison
- Rodent Proofing and Exclusion Companies
- Poison Free Businesses – Thank you!
- OWLS and RAPTORS!
Information and links on owls and raptors for rodent control and where to buy and get instructions for nesting boxes, perches, raptor poles
- Informational Pamphlets
- Friends and Allies
- Recent laws and regulations restricting rodent poisons.
Including PREEMPTION – What Cities and Counties can do to Take Back Control Over Pesticides from the lobbyist’s Preemption Law
- Newspaper articles, blogs, and other articles
- Technical and academic articles
- Cities and counties that have passed resolutions opposing rodent poisons
- Photo of US!
- Earth Friendly Angels (contributors of $1000 or more)
- Italy Section
Click on each picture –
Photos of Affected Animals
P-41’s thin body was found on Oct. 4, 2017 several days after a wildfire burned part of the Verdugo Mountains area where he had made his home. Six compounds of anticoagulant rodenticides—rat poisons—were in his liver: brodifacoum, bromadiolone, chlorophacinone, difethialone, diphacinone and difenacoum.
Found in Point Mugu State Park. Link to NPS report here.
Mountain Lion P-22, The Heroic Griffith Park Mountain Lion
P-22 had been featured in National Geographic Magazine.
Click HERE for a Los Angeles CBS news video on P-22.
A National Public Radio story here.
The National Park Service press release detailing how 1st generation anticoagulant rodent poisons were the culprit is here. The 2nd generation anticoagulants are the only ones recently banned for consumer use, but this is an indication that the 1st generation anticoagulants are also doing tremendous harm.
P-22 sick with mange caused by 1st generation anticoagulant rodent poisoning – diphacinone and chlorophacinone.
City of Malibu Resolution Opposing Rodent Poisons
July 8, 2013
“The City Council urges businesses in Malibu to no longer use or sell anticoagulant rodenticides, urges all property owners to cease purchasing or using anticoagulant rodenticides on their properties in Malibu and commits the City of Malibu to not use anticoagulant rodenticides as part of its maintenance program for City-owned parks and facilities.”
Chain of Death
How rodent poisons spread through the ecosystem, poisoning the wildlife
Malibu is adjacent to thousands of acres of National, State, County and City Parks and other preserved natural land. Modern supertoxic rodent poisons are spreading throughout the ecosystem causing massive exposure, disease, and death beyond the intended targets. Our goal is to have all the communities surrounding our mountains taking strong stands against the poisoning that is now occurring.
Scientific studies tell us that rodent poisons are a leading cause of death among carnivores. Rodent poisons kill the targeted species, but non-targeted species as well. The animals in the food chain consuming the poisoned rodents include – Golden Eagles, Great-horned Owls, Barn Owls, Hawks, Kestrels, Turkey Vultures, Black bears, Pigs, Fishers, Foxes, Badgers, Snakes, Skunks, Raccoons, Bobcats, Coyotes, Mountain Lions, among others.
• Click here to watch (and share) a simple and effective 2 minute video by Steve Byerly of the Ventura County Star describing how the poisons go up the food chain.
• Click here to watch a 14 minute video by Dr. Seth Riley, Wildlife Ecologist of the Santa Monica Mountains National Park Service and adjunct professor at UCLA. It is an excellent introduction to the science of what is happening.
• Words of wisdom from Duane Tom, Chief Veterinarian at the California Wildlife Center in Malibu – On Common Ground: Rodenticides, an unnecessary poison Bottom line: “There is no good long-term reason for using any form of rodenticide. By controlling their populations through natural means, we can help preserve the natural ecosystem health of all wildlife that lives around us.”
Rodent Poison Going Up the Food Chain – courtesy of UrbanCarnivores.com
These are animals that we rely on to do our natural rodent control, and we are poisoning them. By killing owls and hawks, we are removing nature’s own rodent control system. A rodent dying from rodent poisoning is easy prey. Eating the poisoned rodents causes their consumers to bleed uncontrollably internally and die slow and agonizing deaths. The weakened immune system produces extreme emaciation, dehydration, and mange that can take weeks to kill the animal.
There are extensive studies with overwhelming evidence of the carnage that rodent poisons have been causing nationwide and in our own surrounding Santa Monica Mountains. Here are some examples. Numbers in “[ ]” refer to documents in the Section “Technical and Academic Articles” below.
– 83% of coyotes in the Santa Monica Mountains were exposed to rodent poisons .
– 92% of bobcats tested in the Los Angeles area have been exposed to rodent poisons .
– The complete loss of bobcats from many open space areas in the Conejo Valley due to increased vulnerability to the deadly disease mange, caused by exposure to rodent poisons .
– Survival rate (percentage that live from one year to the next) plunged from 77% to a low of 23% in 2004. The reduced population’s survival rate has recovered somewhat to 58% .
– In a study of 195 bobcat blood samples in five southern California counties, the 1st generation anticoagulant diphacinone was found in 77% of the bobcats in which anticoagulants were detected. This emphasizes that the 1st generation anticoagulants are also doing tremendous harm, not just the more widely restricted 2nd generation poisons. See www.urbancarnivores.com/laurels-blog.
Three major studies:
- Of 104 mountain lions tested California-wide from 2005 to 2011, 82 contained rodent poisons, with 78% containing more than one kind .
252 mountain lions were tested for poisons from 2016 to 2018 in 37 California counties. 95.6% of their livers had exposure to one or more poisons.
72% to 3 or more poisons.
- Of 28 mountain lions found in eight California counties that were tested between 1997 and 2011, 100% tested positive for at least one of the 2nd generation rodent poisons, 96% tested positive for brodifacoum, 93% tested positive for bromadiolone, 39% tested positive for difethialone and 61% tested positive for the 1st generation rodent poisons diphacinone.
Note that this 1st generation anticoagulant is doing tremendous harm also, not just the more restricted 2nd generation anticoagulants.
- 14 out of 14 mountain lions tested by the California Department of Fish and Wildlife in 2012 had rodent poisons .
- In addition –
- 2 Simi Valley mountain lions (P3 and P4) were documented to have died directly from rodent poison exposure.
- October 2012 a young female mountain lion (P25) was found dead by hikers with rodent poisons in her system in Point Mugu State Park, Malibu.
- September 2015 P-34 died in Point Mugu State Park, Malibu, from five different anticoagulant poisons.
- October 2017 P-41 in the Verdugo Hills was found dead with six different anticoagulant poisons.
– A Department of Fish and Wildlife study stated “as of 2010, 92% of raptors (owls and hawks) collected in San Diego County and 79% collected in the Central Valley contained anticoagulant rodenticides” 
– 85% found exposed to rodent poisons of 101 studied for exposure . Fishers are cat-sized weasel-type carnivores that live in the rugged portions of the southern Sierra Nevada and are candidates for listing under the Endangered Species Act.
San Joaquin Kit Foxes
– 74% of 68 foxes sampled of this endangered variety studied near Bakersfield, California were exposed to anticoagulant poisons . This subspecies is listed as Federal Endangered and California Threatened, primarily due to profound habitat loss and degradation throughout its range.
• National Park Service summary letter
Here is a letter from the National Park Service dated July 8, 2013 for consideration of the Malibu anti-rodent poison Resolution – NPS Letter to Malibu. It summarizes the situation, including the statement – “Our research suggests an interaction between anti-coagulant rodenticide exposure and death from mange and mange deaths resulting in the complete loss of bobcats from many open space areas in the Conejo Valley.“
The National Park Service sent in a second updated letter to the Malibu City Council when it passed the Local Coastal Program amendment restricting pesticides in the Malibu Coastal Zone – NPS LCP Amendment Letter 6Dec2019.
Danger to Children & Pets – No Safe Poisons
Current studies have proven that there are no safe poisons that can be used around wildlife, pets, and children. Approximately 10,000 children a year are accidentally exposed to mouse and rat baits, as graphically described in this Scientific American article. Ten rodent poisons have been identified by the US EPA as being particularly dangerous – Brodifacoum, Bromadiolone, Bromethalin, Chlorophacinone, Cholecalciferol, Difenacoum, Difethialone, Diphacinone, Warfarin, and Zinc Phosphide. They are specifically referenced in the US EPA document “Risk Mitigation Decision for Ten Rodenticides, May 28, 2008 (revised June 24, 2008)”. These and all other rodent poisons should be abandoned for rodent control in California.
Here are references on the danger to pets:
- 50,000 dogs a year poisoned – National Poison Data System
- Rodenticides top poison control calls in 25 states
- May Cause No Symptoms for 3 to 5 Days, But Swift Action Could Be Life Saving
- 10 Most Common Ways Dogs Are Accidentally Poisoned
- Causes Fast-Acting Death Within Days and Has No Antidote — Keep It Far Away From Pets
- Video: Anticoagulant Poisoning and Dog and Cat Treatment
- Bromethalin references, a very dangerous poison with no antidote:
It is imperative that we do our part to stop the use of poisons to control rodents and to prevent these poisons from killing other species that feed on them.
• There is much more information at Dr. Laurel Serieys’s Urban Carnivores website:
Dr. Laurel Serieys is a researcher at UCLA’s Department of Ecology and Evolutionary Biology. Her website is the place to start.
– Home Page www.urbancarnivores.com
– Please read Laurel’s advice – NO POISON IS A GOOD POISON www.urbancarnivores.com/poisons
– Laurel’s blog, including her latest research: www.urbancarnivores.com/laurels-blog
How to identify rodent poisons
A detailed 10-page summary of rodent poison types is here: Poison Types Summary. It includes anticoagulants and non-anticoagulants.
First, please read the section in Laurel’s Urban Carnivores website No Poison Is A Good Poison (near the center of the long page). There is no poison that does not present a risk to wildlife, pets, and humans. At present, the strongest documented data points to anticoagulant rodent poisons as being the most damaging to wildlife.
There are two categories of anticoagulants. LOOK AT THE PRODUCT LABEL to determine the type of poison.
1) Second generation. Products that have any of the following active ingredients are in this category: brodifacoum, bromadiolone, difethialone, and difenacoum. These are the most advanced, and dangerous, poisons. They are banned for consumer use in the United States, but are VERY commonly used by the professional pest control companies.
2) First generation. Most common active ingredients are diphacinone, chlorophacinone, and warfarin. These are less potent, BUT —
1st Generation Anticoagulant Rodent Poisons are not the answer!
2nd generation anticoagulants get most of the bad publicity and blame for poisoning wildlife, but recent research suggests that 1st generation anticoagulants (diphacinone, chlorophacinone and others) are no better. Here is a handout we made summarizing the evidence concerning the far more abundant 1st generation anticoagulants.
Poison Bait Stations/Boxes – The Source of much of the Poisons
• We’ve got to get rid of these – poison bait boxes!
Please help stop the use of poisons to control rodents and to prevent these poisons from killing other species that feed on them. The first step is to identify the poison bait boxes where the rodents load up on poisons and then leave, initiating the Chain of Death. Please see this TV news story to see the bait boxes at their worst.
Rodent Proofing and Exclusion Companies
For professional help, hire a rodent exclusion/proofing company instead of a conventional poison-supplying pest control company. They SOLVE the problem by removing the causes and entryways, with guarantees, not set you up for a monthly bill to re-supply unnecessary poisons. Examples in southern California (rodent clean-up and exclusion only):
- Tree of Life Rodent Control. www.TreeOfLifeRodentControl.com Phone: 310-817-1040, TreeOfLife75@yahoo.com. See owner Wilmar Mejia talk about his animal friendly strategy at this YouTube video. This Los Angeles Times article features Wilmar.
- Green Rat Control. www.greenratcontrol.com Phone: 855-856-8585, firstname.lastname@example.org.
- Rodent Masters. www.rodentmasters.com Phone: (818) 855-9136, email@example.com.
These are companies people have told us about. Let us know your experience.
Local Poison Free Businesses
Our educational campaign resulted in Malibu merchants removing all rodent poison products from their shelves. There had been six – Ralphs, CVS Pharmacy, Pavilions, Malibu Hardware, A&B Plumbing, and Malibu Ranch Market. Ralphs, RiteAid, and Albertsons in Calabasas; and Agoura Feed and Roadside Lumber in Agoura Hills have also enthusiastically removed their poison products.
Please THANK these local merchants!
We would also very much like to recognize the following local Malibu businesses that do not use poisons, but instead use careful sanitation practices.
THIS IS THE PROOF THAT POISONS ARE NOT THE WAY TO GO BECAUSE …
They have no exposed garbage, no rodent problem, and no poisons!
Please patronize and thank them!
We also have noticed that businesses that do not clean up their garbage STILL HAVE RODENTS, NO MATTER HOW MUCH POISON THEY USE!
• Where to discard rodent poisons
Rodent poisons CANNOT go into ordinary trash pickup, or even some of the “hazardous household waste” events in many cities. They must be taken to special Collection Centers at specific days and times. In Los Angeles City and County, these Centers can be found at
Information on where to bring hazardous waste in Ventura County can be found at the following link. Please check which Centers accept rodent poison by calling the indicated phone numbers:
Local Household Hazardous Waste (HHW) Facilities, HHW Collection Event Information, and Recycling Facilities
California Department of Pesticide Regulation videos:
Excellent series of YouTube videos on what to do to control rodents. It is specifically for schools, but the strategies are the same for anyone —
Integrated Pest Management for Schools.
Owls and Raptors – A Part of the Solution
– Great place to get owl boxes, installation, and knowledgeable people, in Sherman Oaks: Wild Wings LA
–This is a company that sells and delivers owl boxes and raptor perches: Wild Wing Company
– Hungry Owl Project sells boxes and instructions on how to build your own – www.hungryowl.org
They also provide detailed instructions on location, installation, and maintenance at Hungry Owl Info & Installation
– The Citizens for Los Angeles Wildlife is promoting an owl box program in the city of Los Angeles. See this link.
– Buying Barn Owl boxes, and a lot of information about them: www.barnowlbox.com and www.naturesremedy.co
– How to build your own Barn Owl Box: BuildingBarnOwlBoxes
– Hints on barn owl box deployment from Ventura County Water Protection District and Ojai Raptor Center:
1) Several small holes should be drilled near the tops of the sides of the owl box to prevent overheating.
2) In areas with no shade, a second roof about 1.5 inches above the regular roof is a good idea for the same reason.
3) To prevent occupancy of owl boxes by bees, dust the inside with diatomaceous earth. The bees don’t like this fine white powder. In fact, it is used to repel many insects.
– How to build your own Raptor Perch, from the Ventura County Water Protection District: Raptor Perch Design VCWPD 6-26-18
Examples of Barn Owls and Raptors in use:
– Take a look at this news video on barn owls successfully controlling rodents in Monterey County – Haute Enchilada restaurant inspires others to use a greener alternative than rat poison.
– From the Barn Owl Box Company: Barn Owls in Integrated Pest Management
– Barn owl boxes in vineyards in Lodi, CA
– From the November 2015 issue of Australian & New Zealand Grapegrower & Winemaker magazine. Advice to vineyards and other farmers – Attracting Birds of Prey
– Potential for Barn Owl as Rodent Biological Control in Central California Vineyards: digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1018&context=biosp
– From the Central Coast Vineyard Team: Pamphlet on barn owl boxes
– From the University of California Division of Agriculture and Natural Resources: Barn owls help clean up rodents naturally.
– Ventura County Raptor Study – RAPTORS are MORE EFFECTIVE THAN POISONS for limiting rodent damage to dikes, dams, and levees. Flood control is very important in Ventura County. They must prevent burrowing rodents from damaging water flow structures. They did a careful study and now will the County will be removing poison bait stations and replacing with owl boxes and raptor perches.
- The Ventura County press release is here.
- The full 93 page study is here.
- A TV news video is here.
- Here is a YouTube presentation with slides by Karl Novak of the Ventura County Water Protection District to the Malibu City Council.
- Good article with comments by Karl Novak
– Israel has made a huge investment in owl boxes for agricultural, and it is paying off:
a) The Israeli-Jordan barn owl love that knows no borders
b) Israel leads the way using Barn Owls and Kestrels to replace Rodenticides
c) Project Bird Box Israel
Barn Owls are declining because of habitat loss and rodent poisoning. This Barn Owl could hear my heart beating.
The Barn Owl has excellent low-light vision, but its ability to locate prey by sound alone is the best of any animal that has ever been tested. It can catch mice in complete darkness in the lab, or hidden by vegetation or snow out in the real world.
A barn owl will eat at least 10,000 rodents a year. For every owl that dies prematurely from poisoned rodents, 10,000 extra rodents are free to multiply.
If we don’t want the rat population to explode we must STOP USING RAT POISONS. All poisons kill the predators as well as the “so called pest.” In the long run your problem becomes harder to manage. The food chain if allowed to thrive will keep the balance. As we always say, “No Poison Is Safe.”
Our Informational Pamphlet and Others from Cities
And this one is from the city of Malibu Environmental Sustainability Department (download the 2 pages separately) –
City of Calabasas Environmental Commission’s Pamphlet (download the 2 pages separately) –
Friends and Allies
– Raptors Are The Solution
The leader of this effort in northern California is Lisa Viani who heads up the Raptors Are The Solution organization.
She has a lot of up-to-date news on her Facebook page –
Her website has some more information and links –
Lisa has put three great videos on YouTube – www.youtube.com/user/raptorsrthesolution
– Project Coyote
Project Coyote is a national non-profit organization based in Northern California whose mission is to promote compassionate conservation and coexistence between people and wildlife through education, science and advocacy. – projectcoyote.org
– California Wildlife Center
The CWC takes responsibility for the protection of all native wildlife through rehabilitation, education and conservation. – cawildlife.org
– Santa Monica Mountains Fund
Protecting the Santa Monica Mountains and the wondrous species that call it home. –samofund.org
– Las Virgenes Homeowners Federation
The voice and conscience of the Santa Monica Mountains since 1968 – lvhf.org
– Wildcare of SoCal
Through the efforts of concerned and caring humans, many animals can be rehabilitated. Wildlife Care of SoCal is a group of volunteers dedicated to helping individual wild animals in need. – wildcareofventura.org
– Santa Susana Mountain Park Association
Preserving and protecting the Santa Susana Mountains and Simi Hills of Southern California -– ssmpa.com
– Sierra Club San Fernando Valley
– National Parks Conservation Association
The mission of the National Parks Conservation Association is to protect and enhance America’s National Parks for present and future generations – www.npca.org
– Topanga Creek Watershed Committee
The mission of the TCWC is to preserve, protect and improve the health and well-being of the Topanga Creek Watershed by educating stakeholders to act in support of this valuable and fragile ecosystem. We actively promote non-toxic and bio-friendly solutions to environmental issues, and oppose the use of herbicides and pesticides.
Recent Laws and Regulations Restricting Rodent Poisons
• “State Preemption Law – The battle for local control of democracy”
Why can’t any city or county control the use of rodent poisons or other pesticides? We get asked this all the time. This article explains how the agriculture and pest control industries put through a law preventing local cities and counties from regulating pesticides. It all started when Mendocino County tried to protect their children from being sprayed with herbicides. The agriculture and pest control industries fought Mendocino County all the way to the California Supreme Court and they LOST! So then their lobbyists went to the California Legislature and had a special law, called “Preemption” passed to take away the ability of local jurisdictions to control pesticides!
(The following link to midwestpesticidesaction.org has changed. We are trying to find the new location.)
Here is what you can do to counter preemption in your state: – midwestpesticideaction.org/repeal-pesticide-preemption
We were delighted in September 2018 that the League of California Cities, the lobbying group for all the cities in California, passed a Resolution proposed by the city of Malibu to reverse preemption as it pertains to anticoagulant rodent poisons! It was just one of two Resolutions passed at its annual meeting. See Resolution 2 here – League of California Cities 2018 Resolutions. We will be working with the League to implement this with legislation.
• California Department of Pesticide Regulation (CDPR)
New rules banning 2nd gen anticoagulants from consumers use – July 1, 2014.
Here is the official CDPR website stating and explaining the new July 1, 2014 regulations banning consumer use of 2nd generation anticoagulant rodent poisons. Includes technical arguments supporting the rule change in the document “Initial Statement of Reasons” and responses to public comment in “Attachment A” of Final Statement of Reasons.
In November of 2018, the CDPR determined that these regulations were insufficient. No improvement in the rate of wildlife poisoning had been detected in the four years since the ban went into effect. The problem clearly was that commercial pest control operators had been exempted and could still use the 2nd generation poisons. A new reevaluation process in now in progress, see CDPR New Reevaluation.
• New Santa Monica Mountains Local Coastal Plan banning all anticoagulant rodent poisons – October 10, 2014.
Former Los Angeles County Supervisor Zev Yaroslavsky spearheaded a major revision of the development regulations for the unincorporated areas of the Santa Monica Mountains within the Coastal Zone boundary. See a map for where it applies here. One of its clauses reads –
“The use of insecticides, herbicides, anti-coagulant rodenticides, or any toxic chemical substance which has the potential to significantly degrade biological resources in the Santa Monica Mountains, shall be prohibited, except where necessary to protect or enhance the habitat itself …”
All the details are here at planning.lacounty.gov/coastal/smm.
See especially clause CO-58 in the “SMM LCP Land Use Plan”
• California Assembly Bill AB 2657 – September 10, 2014
State Assemblyman Richard Bloom successfully put through a law signed by the Governor on September 19, 2014. It bans the use of 2nd generation anticoagulant rodent poisons on state wildlife habitat areas, meaning state parks, wildlife refuges, and conservancies. The official bill can be found here –
• California Assembly Bills Restricting Rodent Poisons.
We have been working with State Assemblyman Richard Bloom and allied organizations to further restrict rodent poisons in California. This is in progress. Our first attempt in 2017 was California Assembly Bill AB 2596. We had the support of a coalition of 57 conservation, public-health, research and wildlife-rehabilitation groups, the city of Malibu, Marin County, the mayor of Richmond and more than 45,000 people. This was followed in 2018 by AB 2422. It can be found here – AB 2422. It passed one Assembly committee. We have learned from this experience and are now working with a stronger team including professional lobbyists for the 2019 legislative session.
Newspaper Articles, Blogs and other articles
Here is a link to more news articles – Recent Articles
– Blog by our great nature journalist for the Malibu Surfside News, Suzanne Guldimann. Here is the main page and two articles on rodent poisons and wildlife.
– “Silent Spring Revisited”
Article from the Kansas Audubon Society illustrating how the process of collusion among the rodent poison chemical companies, academic researchers, and the EPA allow clearly damaging poisons to be applied for short term financial benefit.
– It’s not just the California, or the USA. It’s all over the world.
“Nearly No Barn Owls Left in Ireland“
– Blog by Stella McMillin of the California Department of Fish & Wildlife Wildlife Investigations Laboratory
– “The Food Chain of Rodenticide“
January 20, 2014 three minute radio story on American Public Media’s MarketPlace
– TED Talk. “For more wonder, rewild the world”. Wonderful talk on how restoring the top carnivore, in this case wolves, restores an entire ecosytem:
The Malibu Surfside News, its former Editor/Publisher Anne Soble, and its great environmental reporter Suzanne Guldimann are a major reason we started this campaign.
– “Banning Rodenticides: The Next Hurdle” from the Malibu Surfside News, December 13, 2012. Editorial.
– “Concerns about Rodenticide Impact on Wildlife Prod Efforts to Curb Use” from the Malibu Surfside News, December 6, 2012. Malibu Agricultural Society effort to stop sales in Malibu.
– “Use of Rodenticides at High School Raises Issues of Health and Safety” from the Malibu Surfside News, September 15, 2011.
– “Rodenticide information session draws out Malibu activists” from the Malibu Surfside News, March 17, 2014.
Technical and Academic Articles
1) California Department of Pesticide Regulation on their new rules to ban consumer use of 2nd generation anticoagulant rodent poisons.
BEST SINGLE SUMMARY and review of the latest data on the damage to wildlife in California. June 27, 2013 memorandum from Deborah Daniels, Senior Environmental Scientist to Ann Prichard, Chief, Pesticide Registration Branch, both of the California Department of Pesticide Regulation.
2) These are two long technical reports from a scientific panel reporting to the US Environmental Protection Agency. There is a lot of information not found easily elsewhere. In particular they discuss several different kinds of rodent poisons, including first generation anticoagulants, second generation, and non-anticoagulants such as bromethalin and strychnine.
SAP EPA response-2013-0049-0002
3) Slides from November 2012 presentation by Stella McMillin of the California Department of Fish & Wildlife Wildlife Investigations Laboratory – “Anticoagulant Rodenticides: Secondary Poisoning of Wildlife in California“
4) Coyotes. Gehrt SD, Riley SPD. In book Urban Carnivores edited by SD Gehrt, SPD Riley, BL Cypher. Baltimore, MD: The Johns Hopkins University Press. pp. 79-95 (2010).
a) L. E. K. Serieys, T. C. Armenta, J. G. Moriarty, E. E. Boydston, L. M. Lyren, R. H. Poppenga, K.R.Crooks, R.K.Wayne, S.P.D.Riley, “Anticoagulant rodenticides in urban bobcats: exposure, risk factors and potential effects based on a 16-year study,” Ecotoxicology (2015) 24:844–862. (This is a link to the abstract. Email firstname.lastname@example.org if you would like the full article.)
b) Riley SPD, Boydston EE, Crooks KR, Lyre, LM. In book Urban Carnivores edited by SD Gehrt, SPD Riley, BL Cypher. Baltimore, MD: The Johns Hopkins University Press. pp. 121-138 (2010).
c) Also, see Riley, SPD, et al, “Anticoagulant Exposure and Notoedric Mange in Bobcats and Mountain Lions in Urban Southern California,” Journal of Wildlife Management, 71(6):1874-1884 (2007).
6) Mountain Lions. July 11, 2011 Letter from John McCammon, Director, California Department of Fish and Game to Christopher Reardon, Acting Director of California Department of Pesticide Regulation. 2016 follow-up: J. Rudd, et al, Proceedings of the 28th Vertebrate Pest Conference, Rohnert Park, CA, February 2018.
7) Mountain Lions. Table 4, page 11 of June 27, 2013 memorandum from Deborah Daniels, Senior Environmental Scientist to Ann Prichard, Chief, Pesticide Registration Branch, both of the California Department of Pesticide Regulation.
8) Owls and Hawks (Raptors). Lima, L. L., and Salmon, T. P. “Assessing some potential environmental impacts from agricultural anticoagulant uses.” Proceedings of the Vertebrate Pest Conference 24:199–203 (2010).
a) Gabriel, M.W., et al, “Patterns of Natural and Human-Caused Mortality Factors of a Rare Forest Carnivore, the Fisher in California“, Public Library of Science One, 0140640, #11, Vol. 10, November 2015.
b) Gabriel, M. W., et al, “Anticoagulant Rodenticides on our Public and Community Lands: Spatial Distribution of Exposure and Poisoning of a Rare Forest Carnivore.” Public Library of Science One, 0040163, #7, Vol. 7, July 2012.
10) “Potential Risks of Nine Rodenticides to Birds and Nontarget Mammals: A Comparative Approach,” William Erickson and Douglas Urban, US Environmental Protection Agency, July 2004. This 230 page report is an often cited classic in the field.
11) The Center for Biological Diversity is a national leader protecting the environment, including legal action. This is a detailed summary of their argument to the California Department of Pesticide Regulation – www.biologicaldiversity.org/campaigns/pesticides_reduction/pdfs/2012-12_Rodenticide_comments_to_DPR.pdf
12) Cypher, B.L., McMillin, S.C. , Westall, T.L., Van Horn Job, C., Hosea, R.C. Finlayson, B.J. and Kelly, E.C., “Rodenticide Exposure Among Endangered Kit Foxes Relative to Habitat Use in an Urban Landscape. “Cities and the Environment 7(1): Article 8 (2014).
13) Ceballos, G., et al, “Accelerated modern human–induced species losses: Entering the sixth mass extinction.” Science Advances 19 Jun 2015: Vol. 1, no. 5, e1400253, DOI: 10.1126/sciadv.1400253. ” … the number of species that have gone extinct in the last century would have taken, depending on the vertebrate taxon, between 800 and 10,000 years to disappear. These estimates reveal an exceptionally rapid loss of biodiversity over the last few centuries, indicating that a sixth mass extinction is already under way.” — From the Abstract.
14) Pope Francis, ENCYCLICAL LETTER LAUDATO SI’ OF THE HOLY FATHER FRANCIS ON CARE FOR OUR COMMON HOME. “The destruction of the human environment is extremely serious, not only because God has entrusted the world to us men and women, but because human life is itself a gift which must be defended from various forms of debasement.” — One of many quotes beautifully describing the crisis we are in regarding climate change and our relationship to the Earth.
15) L Mott, D Fore, J Curtis, G Solomon, Chapter 5, Pesticides: Our Children At Risk, Natural Resources Defense Council, November 1997. Comprehensive summary of the effects of pesticides on children.
16) Talk about the dangers of glyphosates/RoundUp by Dr. Stephen Frantz, pathobiologist and expert on pesticides: Poison Free Malibu YouTube channel
Cities and Counties that have passed Resolutions Against Rodent Poisons with links (click on the name)
Agoura Hills 2/12/2014
Hidden Hills, 3/24/2014
Laguna Beach, 5/26/2020
Simi Valley, 4/20/2015
Thousand Oaks, 4/14/2015
Westlake Village, 4/23/2014
El Cerrito, 9/19/2012
Foster City, 7/15/2013
Humboldt County, 5/14/2013
Marin County, 5/1/2012
Menlo Park, 10/20/2015
Portola Valley, 3/22/2017
San Anselmo, 3/26/2013
San Francisco (City and County), 12/2/2011
Santa Cruz County, 6/6/2017
Here is a map of the cities around the Santa Monica Mountains with Resolutions
Our team at work at an Earth Day event in Malibu.
Earth Friendly Angels
Major Contributors, $1000 or more
City of Malibu
Joel and Kian Schulman
Richard and Ann Buxie
Victoria Principal Foundation
June and Jeff Louks
The Malibu Agricultural Society
Donna Kaplan and Lou Arcay
Chris and Paula Murphy
1) Mailing a check made out to Poison Free Malibu to
Social and Environmental Entrepreneurs
23532 Calabasas Road, Suite A
Calabasas CA 91302 OR
2) Clicking here: (fee added on)
We are a 501(c)(3) nonprofit (ID 95-4116679)
Poison Bait Boxes
Mice and rats go in these boxes, eat the poison, and then go out to get eaten by and poison other animals. They DO NOT die and stay in the boxes! They take up to 10 days to die, making them easy prey.
Scatole di esche avvelenate
Topi e ratti vanno in queste scatole, mangiano il veleno e poi escono per essere mangiati e avvelenare altri animali. NON muoiono e rimangono nelle scatole! Ci vogliono fino a 10 giorni per morire, rendendoli facili prede.
Poisons For Sale
Veleni In Vendita
Questi veleni venduti nei negozi in Italia sono stati vietati per la vendita negli Stati Uniti perché avvelenano animali selvatici, animali domestici e bambini.
Cestino per terra, aprire contenitori per rifiuti e cassonetti per fornire cibo a topi e topi! Questo è il problema da risolvere.
All holes in buildings MUST BE SEALED COMPLETELY so mice cannot get in.
Tutti i buchi negli edifici DEVONO ESSERE SIGILLATI COMPLETAMENTE in modo che i topi non possano entrare.
Closed trash containers and dumpsters SOLVES the problem. Rats and mice have nothing to eat. This is how mouse and rat problems are stopped.
Contenitori e cassonetti della spazzatura chiusi RISOLVE il problema. Ratti e topi non hanno nulla da mangiare. Ecco come si fermano i problemi di topo e topo.
Italy September 2019. Examples of Secure Dumpsters
This is a fantastic advance in trash control that can be shared internationally.
A BIG thank you to the following cities.
Italia settembre 2019. Esempi di cassonetti sicuri
Questo è un fantastico progresso nel controllo dei rifiuti che può essere condiviso a livello internazionale.
Un GRANDE grazie alle seguenti città.