AusBonsai

Hi all,

Anyone able to identify what pest might be eating my trident maple leaves? It has happened a few times but doesn't seem to be there all the time, but keep knocking out half the leaf on new full leaves.

Any ideas?

Cheers,

Looper worm?
Have a good look for the hiding along the branches and trunks

Ken

Google search Leaf cutter bees. Had this a while ago (with thanks to the knowledgeable Shibui )

If the holes are irregular shape, suspect caterpillar.
If the holes are almost perfect semi-circles suspect leaf cutter bees.
Personally, I'm willing to sacrifice a few trident leaves for these little native bees which have been hit hard by human development.

I get green grasshoppers that do that too.