What's Eating my Chilli Plants?

My Cayenne Chilli Plants are fairly mature now and have started producing some nice hot chillis over recent weeks as we progress into early Autumn. I recently had to do a Forced Chilli Harvest after a recent storm, but even that damaged plant has come back strong. However, now I have a bit of a pest issue that seems to be causing a new problem.

The leaves on my plants are getting badly eaten. I haven't seem them like this before, it looks like they are kind of burnt or scorched around the holes. There are some tiny ones and others where half of the leaf has been taken. The plants are still fairly healthy overall and the chillis themselves seem unaffected but I know that a pest infestation is only likely to get worse so I should try to get on top of it.

Normally I don't like to do pesticides because I prefer more organic solutions, but I am not religious in this regard so I'll do what I need to do. I suspect it's some kind of caterpillar or worm but I am suspicious of the burnt edges around the holes. I figure there are lots of experienced gardeners here on HIVE and even though my pest might be more region specific (I live on the East Coast of Australia) I wondered if maybe someone here could give me the tip. Anyone have suggestions on what I should do?

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Ecency