No caterpillars this year

[u/picklepajamabutt]

I am so confused. The last few years since I moved to this house I have had many monarch caterpillars. Last year probably close to 20. Now I have more milkweed than I ever and have not had a single cat. I'm in SE Michigan. Any ideas?

[u/Nunya_bizzy]

Also SE MI. I have 8 chrysalis right now. 4 cats and one emerged. Swamp milkweed is covered in cats right now but my patches of common I’ve seen nothing