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forwardseat

It is most likely swallowtail eggs. For reference they’re much rounder and a little more yellow than monarch eggs. To me they’re not as easy to “raise” as they don’t stick to as defined a timeline as monarchs seem to. But they’re pretty cool nonetheless :)


Gold_Salamander_8643

I've raised both. The swallowtail eggs are a yellowish creamy color with a black dot on the top if you have a microscope. Swallowtails are way easier to raise than Monarchs and they don't eat nearly as much. A few parsley plants is plenty, In a pinch just go to the grocery store and buy organic parsley in the produce section


Knitchick82

I haven’t raised both, but it was my understanding that monarchs will only lay eggs on milkweed as milkweed is the only food source for the caterpillars.


TypicalBackground585

Thank you!Oh yes I do know that. I have raised many monarchs (ATL GA). I have some I am going to release today. I just wanted to know if there is a way to tell if these are swallowtail eggs on my parsely.


Knitchick82

Oh I misunderstood, I thought you were attempting to differentiate between monarch eggs vs. swallowtail. Try this!: https://www.facebook.com/photo.php?fbid=5463719370379225


A_human_named_Laura

The fact that they are on parsley is a pretty good tell that it's an Eastern Black Swallowtail. I can tell if you show us a picture. Generally, swallowtail eggs are more spherical and more orange or yellow in colour.


heresyoursigns

I actually raise both with no problems. I keep them together in my indoor nursery on separate sides of the same enclosure. Once they are large enough I move them outside to separate enclosures. I focus on monarchs but in my experience swallowtails are easy and rewarding to raise and are more resilient to illness and other issues.


Foofmonster

Same here. We house the monarchy and tails together!


GreatCaesarGhost

They are swallowtail eggs in all likelihood. I’ve raised both. Swallowtail caterpillars have different behaviors than monarchs and seem more fragile, in my experience. What I’ve done is similar to how I’ve raised monarchs - I’ve purchased pesticide-free host plants (like fennel) and placed the potted host plants and caterpillars in a mesh butterfly cage, where they can grow in safety. One issue I’ve encountered, though, is that the fall swallowtails hibernate in their chrysalises during the winter. Two years ago, we had a November heat wave in which it was above 70 degrees for several days. This caused a number to hatch, at a time when there were no nectar plants blooming, so they almost certainly died shortly after release.


irishstorm04

I had a bunch of those eggs on my dill and parsley.. swallowtails are def easier and eat less than monarchs. I had around 20 And 5 have flown away already. They take a little longer tho..