I recently have noticed that my N. x Ventrata has had some yellowing and browning leaves (pictures attached below). The leaves are old ones that were there since I bought the plant about a month and half ago at my local greenhouse, most of them had dead pseudo-pitchers formed on each tendril, so I cut those off with some sterilized scissors. The leaves also have reddish or maroon colored spots, varying in size, underneath them as well. I heard that this could be mold or aphid damage, but I think it is the older leaves just dying off, but that's just my hypothesis. Also...the Nepenthes has weird little insects attached to it...they look like a nano sized version of cicadas and are light to dark green (picture attached below). Could these possibly be the cause of the discoloration? I have also been leaving the Ventrata in direct sunlight...its been outside for a few weeks and it didn't effect the plant at all past from making the plant sprout out new shoots and pitchers quicker than Bruce Lee can make someone's testicles dissapear into the nethersphere 🤣. Anyways, thanks for any help or advice you can give. Cheers and have a great weekend! 😀
From what I can see, that's just the old leaves going through the full cycle. Let them brown all the way before pruning them back, and don't worry about the color flushes in the new leaves. Until it stops pitchering, there are no major concerns. I wouldn't let it take more than 4 hours of direct sunlight, however, and while ventrata is tough, keeping it above 50 at night is the safest bet in terms of outdoor growing. Those bugs look like leafhoppers, don't worry about em. Good luck!