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Caterpillars killed by mold?

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Old Wednesday 20th November 2019, 18:20   #1
tonyksd
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Caterpillars killed by mold?

I saw many caterpillars die because of something that was white.
I don't know what it is, but I think it might be some mold.
What do you think?
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Old Wednesday 20th November 2019, 19:01   #2
Deb Burhinus
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Are you sure these aren’t cocoons of either parasite killing caterpillars or caterpillar building a cocoon to pupate (are they dying or pupating - can you tell the difference?
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Old Wednesday 20th November 2019, 19:43   #3
tonyksd
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Quote:
Originally Posted by Deb Burhinus View Post
Are you sure these aren’t cocoons of either parasite killing caterpillars or caterpillar building a cocoon to pupate (are they dying or pupating - can you tell the difference?
I'm sure those aren't their cocoons. This is Parasa lepida caterpillar and this is Parasa lepida cocoon looks like.

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Old Friday 22nd November 2019, 19:22   #4
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It's possible that the white stuff that you see is the spun silken cocoons of a parasitic wasp (actually many wasps). It does not look like a fungal attack. Unfortunately I can't see enough detail in the photo to be certain.
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