Torn ampullaria leaves

[tzestan]

This is one of my ampullaria.
I am wondering about the cause to its torn leaves.
From the photo, 3 new leaves and its shoot have dead tissues.
As the leaves expand, they look like eaten by bugs. But I don't think bug attack is the cause.
There is another pot of ampullaria next to this one. That one seems fine.
Other than aesthetically unappealing, the plant looks healthy pitchering.
Any suggestions on how to solve this?

[sooxiwei]

same thing happens to one of my n. rafflesiana, but only to one particularly leaf where it ends up failing to pitcher, for mine, caused by slugs/snails, they attack on the very early stage when the new leafs is emerging...

[rhealk]

Looks like chewed by something. Some of my neps have leaves chewed by jap weevils (or at least they looked like it) before it's fully formed, while they're still tender and soft (sounds yummy). After the leaves fully grown, they have all type of weird looking damages / holes. Sometimes the wound get some infection and rot a bit.

Maybe you can find the culprit if you randomly check on your plants in the afternoon and evening. After found the culprit, you'll have enjoyable time putting it into the pitcher or VFT.

Just to share my experience (and cruelness)

[piscesilim]

Most probably catepillar. Check if got caterpillar droppings around.

[Vincent]

its a bug. most likely a caterpillar, since they like the taste of new foliage. To prevent caterpillars and slugs, fill your water tray till there is just enough to cover the bottom. If its flying insects, i’d suggest an insecticide, but u prolly cant cant the stuff i know of.

[Angkau Tekor]

I think most probably grasshopper. Caught a few chomping on my neps leaves before.