Pest Identification

boozer52November 12, 2010

Found this on a branch of the tangerine tree this afternoon. Didn't see any damage but just wondered what it was and if it causes any harn. Is this common to the southern california area and does it cause any harm. The pictures do not do it justice, it really has a creey look.

http://home-and-garden.webshots.com/photo/2523828180032633912DOXMQO

http://home-and-garden.webshots.com/photo/2523828180032633912DOXMQO

Thank you for reporting this comment. Undo
rhizo_1 (North AL) zone 7

That's the caterpillar of the beautiful Giant Swallowtail Butterfly. They are a relatively common pest of citrus country-wide. Plenty of parasites and predators help control them in all stages, but they are capable of munching away at a lot of foliage.

I grow some seedling citrus in containers just for the benefit of the butterflies, but others may not wish to sacrifice their plants that way.

Look for the small, pearl-like eggs laid singly on the leaves, usually the upper surface. Your caterpillar, by the way, is not a youngster. Inspect your plants regularly, if possible, so that you can find them when they are still tiny.

    Bookmark   November 12, 2010 at 11:15PM
Thank you for reporting this comment. Undo
boozer52

Thank you very much for the ID. I will keep an eye out for damage before I think about doing anything. I have seen several of those butterflies flying around, but never knew what the lavae looked like. Since I tore out my lawn last spring and replaced it with natives, I have seem a lot of things that I have never seen before. Thanks again.

    Bookmark   November 13, 2010 at 1:32PM
Thank you for reporting this comment. Undo
rhizo_1 (North AL) zone 7

"...I have seen a lot of things I have never seen before."

I'll BET you are, boozer. You may find that you've attracted more of the natural pest control agents, enough so that you see little damage from the caterpillars.

Look for numbers of regular wasps (like the mud daubers), which take caterpillars away to stuff into their muddy egg chambers for the developing wasp larvae. Tiny parasitic wasps are much more difficult to see, but are considered a primary control of caterpillars. There are also predatory stinkbugs (and other members of that family), beetles (even ladybugs will eat the eggs and very young caterpillars), birds, lizards, snakes, tree frogs, squirrels, and more!

Good luck!

    Bookmark   November 15, 2010 at 1:10PM
Sign Up to comment
More Discussions
Sure fire way to get rid of Earwigs
I read the FAQ's for Earwigs and no mention was made...
dowlinggram
Weird white stuff growing on my plants.
I've noticed weird stuff growing & spreading on...
Cheryl Tan
Getting rid of soil nematodes
Dear veggie lovers: This is my first season growing...
diane_zn7a_albqnm_5500ft
Grubs
I'm finding quite a number of these in my garden beds....
oberci
Hardiness zone question
I've always wondered about hardiness zones. When a...
cakbu
© 2015 Houzz Inc. Houzz® The new way to design your home™