Creepy Crawlies

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Hundreds of these guys are gobbling up the leaves on our boulevard tree. Help! Do we spray? Do we put our heads between our knees and wait for the Russian bomb?

What are they and what should we do?

6 thoughts on “Creepy Crawlies”

  1. Do they have orange spots on their backs? I can’t quite see. I’m guessing they’re mourning cloak caterpillars (aka spiny elm caterpillars). Bt is said to be effective on them, if it’s worth it.

  2. Do they have red dots, kerc? If they are mourning cloak caterpillars, they won’t kill your tree, and soon they will all go away without your doing anything.

  3. Thanks for the info. We think they have red dots (it’s early morning now). I’m reassured that we don’t have gypsy moths or some other such pest.

  4. My neighbor, being in a new house with new gardens to her, noticed many caterpillars crawling on a garden plant. She started to kill them until she realized, with my prompt, that they were Monarchs on a milkweed plant, the garden being a butterfly garden. Always check before freaking:-)

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