Raising Book Resources
Raising Hope for the 2021 Monarch Migration- Raise The Migration Results
Raise The Migration is an annual North American challenge to raise monarch butterflies to release for fall’s annual monarch migration. The time has come to share your 2021 experience and raise it forward…
The raising season is coming to an end, so we’d love to hear how many butterflies you released for fall’s annual 2021 monarch migration…and more importantly, what lessons you’ve learned through this amazing raising experience?
If you’ve still got some raising to do, raise on! But please post in the comment box at the bottom of this page after you’ve released your last butterfly.
Every year, I start Raise The Migration in July, but monarchs raised at that time aren’t actually migration generation butterflies…they’re the parents to that amazing generation of travelers.
There’s no way to tell whether butterflies will mate or migrate, but one telltale sign of a migration generation butterfly is its size, which is dependent on how much the caterpillar eats. The first super-sized caterpillars start to form chrysalides around the first week of September in our northern region…
In the garden, you can tell non-migratory butterflies by their worn out wings. Non-migratory males are also more aggressive, chasing off potential competition while seeking out female companionship…migratory monarchs are in sexual diapause and only interested in stocking up on nectar for the long journey ahead.
So how did our Raise The Migration Monarchs fare this season and what lessons did we learn raising forward?
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If you’re interested in a step-by-step guide digital guide with free updates (before each monarch season begins in spring) please check out the monarch raising guide by clicking this butterfly photo:
For anyone who purchases the guide (or any other item) from Monarch Butterfly Life, you will be invited to our closed facebook group where you can discuss raising monarchs with other raisers and post your photos.
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Here are Raise the Migration results from the past eight seasons:
2020- 82% survival rate
2019- 81% survival rate
2018- 93% survival rate
2017- 100% survival rate
2016- 96% survial rate
2015- 96% survival rate
2014- 90% survival rate
2013- 100% survival rate
As you can see from the results, this raising system is consistently producing healthy monarchs to help support the struggling monarch population.
Raise The Migration 2021 Results
I released 15 healthy monarchs (14 females and 1 male) from July 29th to August 16th with a 100% survival rate. I am fairly certain all of these butterflies were parents to the migration generation.
The seven monarchs we raised after that, were counted as our official Raise The Migration monarchs for 2021...
Caterpillar Escapes
By keeping monarch eggs and baby caterpillars in sealed food containers, and raising larger caterpillars in the mesh cages, we never lose caterpillars.
I think the closest we have come was two years ago when I forgot to close a cage door and found a caterpillar crawling on top of the cage. 🐛 😱
Unexplained Caterpillar Deaths
We didn't have any unexplained monarch deaths in 2021.
Caterpillar Diseases and Parasites?
I'm happy to report no disease issues in 2021. All of our raise the migration participants were brought in as eggs so no issues with tachinid flies...a couple eggs were parasitized by trichogramma wasps, and we discarded those eggs when they darkened and never hatched.
Accidental Deaths?
We experienced one accidental (and completely preventable) accidental death. See the Butterfly Eclosure section below for more details...
Chrysalis Problems
No chrysalis issues to report in 2021...
Community member Jude R. recently used the microfiber method to rehang one of her fallen chrysalides:
Jude reports: There was zero silk and I wasn't sure what to do. Your tip worked and just in time. I was a little worried the bfly's feet would get stuck in the microfiber, but it had zero problems.
Butterfly Eclosures
We had one eclosure disaster this year. An early morning butterfly (emerged from chrysalis before 7am) fell from our kitchen overhang on to the floor.
She lost a lot of fluids from her abdomen when this happened. Her wings recovered 'somewhat' when I hung her from inside a mesh cage, but she was injured badly from the fall on to the wood floor, which is about a 7 foot drop.
Starting in 2022, we will no longer rehang chrysalides on our overhang. It's much safer to rehang them inside the cage where they can crawl up a mesh wall after falling a much shorter distance.
Final Results
Our totals are from all eggs that have successfully hatched. We don't count eggs that were parasitized outside or monarchs brought in as caterpillars because they could have parasites too.
Seven monarch butterflies emerged from their chrysalides between August 29th and October 5th:
1 accidental death (butterfly fall)
0 disease or parasite issues
0 unexplained deaths
4 healthy males
2 healthy females
86% survival rate
Lessons Learned?
Chrysalides should always be kept in a cage or somewhere where the butterfly has a chance to climb to safety if it falls after it emerges. In my experience butterflies rarely fall, but it can happen.
Migration Memory 2021
I came across these mating monarchs in our Minnesota garden on September 19th when it was an unseasonable 90°:
Before 2021, I had never seen mating past the first week of September in our region.
I hope you enjoyed reading about my Raise The Migration '21 results and lessons learned raising monarchs through the butterfly life cycle .
And now, I'd love to hear about your experience...
Share Your Results?! ✍️
Please share your results below by letting us know how many monarchs you released to help boost the struggling monarch population…remember to include your location.
More importantly, please share the most valuable lesson(s) you learned about raising monarch butterflies, that you believe can help others raising forward.
Thank you for helping to Raise the Migration in 2021
338 comments
I live just outside Milwaukee. So far I’ve released 40 monarchs for the migration, and I still have 10 chrysalids yet! I’m hoping our unseasonably warm temps hold for another week or two. I keep my monarchs under an overhang outside in mesh cages so they are in as natural an environment as possible, but I’ve been bringing the cage in at night when the temps are cool. I’m hoping the not-as-cool temps at night will keep their metabolism moving so they will eclose sooner rather than later. I tag the butterflies before I release them, and it would be really interesting if any of these late bloomers were found in Mexico in a few months!
I have many milkweeds outside here in Florida. Lots of Monarchs too. I look for the wasps that try to eat the caterpillars and smash them between my flip flops to protect the caterpillars. We also take down all wasp nests
Also in sunny San Diego! Have released 47 beautiful babies this year but my success rate really suffered at the end of the season. Of course there is the dreaded T Fly from those we bring in but I lost so many from egg as well (again, end of season experience). Current experience is not eating and wake up to check on and they look deflated? I have one healthy chrysalis left which I think will be my last for the year. That will bring me to 48 and looking forward to the spring! Save our beautiful monarchs!
When I moved from Arkansas to Alabama last year, I didn’t think I would have very many. I got really busy planting my butterfly garden! I’ve released 25 this year, but had more than 50 caterpillars outside! I’ve learned so much from Tony and the Facebook group and I’m very encouraged for next year! I’ve started another butterfly garden with 3 different types of milkweed and more nectar flowers! It’s been a better year than I ever expected!
I discovered this blog 3 years ago and it has been such a tremendous resource. This year so far we have released around 67 butterflies with 6 more still in chrysalis. Those should go this week. As Tony mentioned, using the cubes allows for a safe environment for the cats to feed and chrysalis to eclose – of course separate cages for those life stages. I have 4 24×24 cubes along with stands and floral tubes, all
from Tony. They are well designed for the job.
I wanted to share a tip for a fallen chrysalis as it is always so worrisome. It’s easiest to explain with a picture, but I don’t see that as an option in this Message box so I’ll attempt to describe.
Essentially you can make a stand that looks like a “hangman”.
Take a styrofoam cup and cut the bottom off.
Using the side of the cup, cut a straight piece about 4”.
Using the round top of the cup, cut a curved piece about 4”.
Assemble by attaching the straight piece to the bottom and then adding the curved piece to the straight piece so it now looks like a “hangman”. Masking tape is good to put it together and then tape it to the cage floor so it doesn’t tip over.
Put the chrysalis on the bottom.
When it ecloses, the styrofoam will
allow for gripping so the butterfly can come out and then climb up the rounded part to hang to dry.
This method has been the most successful (100% success rate) for me when a chrysalis could not be hung.
Thanks again to Tony, and all of the sharing of stories as there is always something new to learn.
Cynthia Skillings
Ellicott City, MD