13 Agencies Unite on Roadmap to Pull Western Monarch Back from the Brink
Press release from CDFW:
The California Multi-Agency Monarch and Pollinator Collaborative has published a report on the results of a years-long process to identify priority conservation actions and research needs for the western monarch butterfly. The “Conservation Priorities for the Western Monarch Butterfly in California” report, involving members of 13 state and federal agencies, marks a significant effort to address threats to the western monarch butterfly, whose population has declined catastrophically in recent years.
“Monarch recovery starts with restoring habitat, expanding native plants and aligning science with on-the-ground action across agencies and partners. This roadmap gives 13 state and federal entities — and the public — a shared path forward to help these iconic pollinators rebound,” said Meghan Hertel, Director of the California Department of Fish and Wildlife.
“The western monarch’s journey is a testament of their endurance. Their survival — as well as other pollinators — requires a collective, persistent effort to turn our landscapes into welcoming habitats,” said California State Parks Director Armando Quintero. “By leveraging shared resources and expertise, we can enhance monarch and pollinator conservation throughout the West Coast.”
The report identifies five top-priority actions for the next three years:
- Develop common monarch habitat definitions for the west
- Track implementation and success of habitat projects
- Centralize existing pollinator resources
- Improve the availability of native plant materials
- Develop a demographic model to help identify key vulnerabilities in the western monarch life cycle
Knowledge gaps recognized in the report include effects of
“This report lays out a roadmap for addressing some of the key challenges for monarchs and other pollinators that we depend on to support our ecosystems and food supply. It is important to see how agriculture can be part of the solution,” said California Department of Food and Agriculture Secretary Karen Ross.
“Pollinators are essential to California grown foods like strawberries, grapes and almonds and agricultural production across the country,” said Paul Souza, Director of the U.S. Fish and Wildlife Service’s Pacific Southwest Region. “This report supports voluntary, science-based conservation across the landscape with a variety of partners — from national wildlife refuges and state parks to highways, farms and ranches. We are committed to working with the State of California and local communities to identify innovative opportunities that advance pollinator conservation, including for the iconic monarch butterfly.”
“Caltrans’ engagement in the Collaborative and enrollment in the Monarch Candidate Conservation Agreement demonstrates our ongoing commitment to the conservation of monarch butterflies. Caltrans is actively implementing conservation actions that positively impact monarchs and their habitats, ensuring that our efforts contribute to the long-term survival of pollinator species,” said Dina El-Tawansy, Director of the California Department of Transportation.
To read the full report and learn more about the California Multi-Agency Monarch and Pollinator Collaborative, visit the Collaborative’s web page.
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Been awhile since I have seen one here locally. About all I ever see are cabbage moths
Western Monarch numbers have decreased by about 99% since the 1980s.
https://xerces.org/monarchs/conservation-efforts
They face a 99% chance of extinction by 2080.
https://www.smithsonianmag.com/science-nature/butterflies-are-in-dramatic-decline-across-north-america-a-close-look-at-the-western-monarch-shows-why-180988582/
You put up these sites that overstate the real numbers. To make it look critical, and gain more donation$. Even google says different.
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The Western Monarch population remains at a critically low level, with the Xerces Society’s 2025–2026 winter count reporting just 12,260 butterflies across 249 sites. This marks the third-lowest total since tracking began in 1997 and signals a continued, concerning trend of low numbers rather than a recovery.
Key 2026 Survey Findings
Causes for Decline
You claim that those sites numbers are dramatized for effect and then post an ai summary that has the same conclusion (99% vs “over 95%”).
What on earth are you trying to communicate, let alone accomplish?
Don’t think I’ve ever seen a Monarch up in Humboldt County… (maybe as a kid).
Most people mistake Viceroy Butterflies for Monarchs.
Now the Viceroys are becoming uncommon.
Replaced by Swallowtails over the past decade… that are now becoming uncommon.
Cabbage Butterfly (invasive species spread to North America in 1860) are doing fine.
Good site for California butterflies.
https://www.inaturalist.org/check_lists/10675-Butterflies-of-California
Thanks!
Viceroy Butterfly vs Monarch: How to Tell the Difference
https://www.birdsandblooms.com/gardening/attracting-butterflies/viceroy-butterfly-a-monarch-mimic/
Swallowtail butterfly


Cabbage moth
picture taken by Olaf Leillinger
Well, here’s our main cabbage/broccoli culprit.
Spray of dilute ‘dish soap’ nails the worms.
‘For best results, use 1 tablespoon of mild, biodegradable dish soap or castile soap mixed into 1 gallon of water. It works best when applied directly to the worms and under leaves, especially after heavy rain.’
Then of course, we also have the ‘root maggots’.
A round paper cut out of a shopping bag placed around the stem can stop them…
or put diatomaceous earth around the stem… or just ‘tent’ the plants.
Nasty. Plants doing well… come out next day… they are wilted on the ground.
Roots eaten away.
Here’s a photo of a Root Maggot infestation… fly and the ‘maggots’.
Have the dark paisley cabbage moths here. I can’t recall for certain if the white moths are here. No root maggots, but termites here will eat around root stalks — beautiful lush one day, look water starved the next, then fall over…that’ll teach me to try to garden next to old fallen fir…
No mention what Mexico is doing about the issue where these butterflies originate from.
Your thinking of the Eastern Monarch.
I retired from Caltrans ten years ago.
About 30 years ago, I tried to persuade upper management to plant milkweed along the shoulders and median strips of our highway system. I thought it would be great to create a statewide network of food & habitat for the Monarchs.
They told me to withdraw my idea, and not mention it again, because it would mean they couldn’t spray and mow all those areas, which would become more difficult to maintain.
They were “right”, of course, but it’s just an example of how our modern lives prevent us from being good neighbors with … well, our neighbors.
It might have have been… a disaster.
Was driving Hwy 99 from Oroville to Red Bluff… (many years ago).
Bee hives were in one field on the right of the highway.
Bees wanted pollen in the next field… yup across the highway.
Turned into a BEE SLAUGHTER.
Couldn’t keep the wipers going fast enough to get the dead bees off the windshield.
Every car and truck was the same. Dead bees lined the road.
Any rate… I envision that if they plant Milkweed along the highways.
It would be MONARCH SLAUGHTER.
Have to build multiple $120 Million Monarch Overpasses.
Go figure.
I like the idea of requiring hedgerows between farm fields.
Of course, if the farms don’t transition away from such heave pesticide use,
that will end up being a disaster too.
https://www.spaceweather.com/archive.php?view=1&day=06&month=05&year=2026
CDFW folks are data driven and not BS driven.