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trioadastra Woodbury, MN(Zone 4a) Jul 06, 2008

I really don't mind these things destroying my psychotically invasive chinese lanterns, but if they are asian beetle larvae, I need to end their existence ASAP! Anyone know what these slimebags are?

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suunto Sinks Grove, WV Jul 06, 2008

These are larvae of a leaf beetle (Coleoptera: Chrysomelidae), a very large family with many pestiferous species native to the USA.

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trioadastra Woodbury, MN(Zone 4a) Jul 06, 2008

Hmmmm.... Should I let 'em live?

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suunto Sinks Grove, WV Jul 06, 2008

It depends on your tolerance for their damage. All chrysomelids are plant feeders (leafs or roots), but not all are serious pests. If they're only damaging your chinese lanterns and you don't mind that, you might just let them be, but if they seem to be moving to plants that you want to keep healthy, you might consider some control options.

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trioadastra Woodbury, MN(Zone 4a) Jul 06, 2008

I'm more worried about when they grow up. They can have my chinese lanterns... Go grub go!

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ceejaytown The Woodlands, TX(Zone 9a) Jul 07, 2008

Do you know what that is on their backs?
http://bugguide.net/node/view/59466#270978

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trioadastra Woodbury, MN(Zone 4a) Jul 07, 2008

Ug, no. It looked like dirt, but it's probably something more disgusting, like grub poop...

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ceejaytown The Woodlands, TX(Zone 9a) Jul 07, 2008

Uh huh...

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trioadastra Woodbury, MN(Zone 4a) Jul 08, 2008

Yuck. I feel like I need to go wipe down my monitor now...

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ceejaytown The Woodlands, TX(Zone 9a) Jul 08, 2008

LOL! Just wait until they get bigger....

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mwperry Brandon, MS(Zone 8a) Jul 08, 2008

Many leaf beetle larvae use their excrement as a protective armor. That appears to be the case on your larvae!

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