Caterpillars

Tina Krenz
by Tina Krenz
I have these caterpillars on my butterfly weed plant and just wonder if you know exactly what kind they are and what are they going to turn out to be. There are always at least 3 out there at once, never more than that.
  8 answers
  • Rhonda B Rhonda B on Sep 19, 2014
    They are Monarch caterpillars:-))
  • Douglas Hunt Douglas Hunt on Sep 20, 2014
    Yes they are, and it looks like they are right where they should be: on your butterfly weed.
    • See 1 previous
    • Douglas Hunt Douglas Hunt on Sep 23, 2014
      @Julie Moyna I suggest you check with a good local nursery about plants for your immediate area. Las Pilatas Nursery, which specializes in California natives, recommends the following species of Asclepias to support monarchs: A. eriocarpa, A. fascicularis, and A. speciosa.
  • Carol S Carol S on Sep 21, 2014
    Lucky you!
  • Leza Leza on Sep 21, 2014
    Yup, Monarch cats! :-) Butterfly weed (aka Orange Glory) is in the Milkweed family. :-)
  • Tina Krenz Tina Krenz on Sep 21, 2014
    Do they also attract wasps too, because all of a sudden, ( and this is the first time I ever had wasps on butterfly weed plant), wasps seem to be coming to the plant. Will they hurt the caterpillars?
  • Chris aka monkey Chris aka monkey on Sep 21, 2014
    @Tina Krenz if you are afraid for them you can bring them in a finish raising them go to save the monarchs for info it is easy xx
  • Mary Jayne Ewen Mary Jayne Ewen on Jan 15, 2015
    @Tina Krenz - re wasps on butterfly weed. Actually, one year I had several Monarch cats and when they went into the pupa stage, they shriveled up and died. I was told it was because of a (wasp) parasite which laid eggs in the cat..........I felt so badly for them. But as my children would say to me, "Mom, it's the circle of life"! Chances are that if the wasps are there, they've already laid their eggs, and you won't even know until they pupate :( Mary Jayne
  • Capernius Capernius on Jan 28, 2016
    SOME, not all but some, wasps will use cats for laying their eggs on... when the eggs hatch, they have an instant meal...IE: the caterpillar again I stress, SOME will bit not all. as someone said, you can remove the cats from the plant, put them in a box, an aquarium, a bug house, etc., and then cut lots of milk weed leaves to feed the cats. Because of the Monarch butterfly population is dropping to record numbers, the more you save the better.