Question
Hi I have a Nepenthes Trucata that over the past 2 months has had one its newer leafs turn orange. I read in the Book the Savage Garden about the fungus Rust Spot. What do you think it is? I have it growing where it will receive dappled sunlight and very bright indirect light the rest of the day. The tempatures in my house get in the low 60s farenheight at night and I have warm days. Any suggesttions? I have a couple of pictures but dont know how to put them on this site.
Thanks!

Answer
Hello Alaric,

Without seeing the plant it is a bit difficult to offer as much help, however; it sounds like light adaptation to me. Nepenthes in bright light will develop bright pink, red, and orange coloration on their pitchers and leaves. I have a N. truncata sitting in very bright light right now as matter of fact and its leaves are dappled with orangish mottling. If the coloration looks like part of the plant, it is not a worry, if it looks like something growing on the plant and can be wiped partially off, it is potentially a threat.

Take a damp paper towel and wipe the leaf with it. If the coloration rubs off on the paper towel, it might be fungus and should be treated with sulfur based or neem oil based fungicide. If not, it is likely nothing to worry over.

Christopher