i noticed 2 lower leaves yellowing on my mystery nepenthes, which I've been caring for like a intermediate highland (ie warmer days, cool nights). Attached is an image if anyone would like to take a shot at identifying it (hint hint nudge nudge).
The plant is still very young: it was about three inches across last November when I bought it and now it is much larger: (though normally it is housed in a 10" glass goldfish bowl to retain humidity under a full spectum bulb in desk lamp... )
Anyways, I thought the yellowing leaves indicated fertilizer or water needs so i did both, then noticed small black pepper sized "blackheads" (that's really the best way to describe them) or dots on the undersides of the leaves. The dots also seem to cause a braille like raised pimple on the top of the leaf. The picture doesn't show how extensive the dots are: on every leaf and even on some pitchers, but less noticable.
On another forum I was adviced that it might be fungus damage. Someone else said this was normal for nepethes... that the leaves secret sugar? Is this true? Could it be thrip damage? I'm afraid if i wait, the plant might die! I'm also not sure what I will notice if i do spray chemicals on it. Will the spots magically disappear or are they a perminent part of the leaf? How will I know if the plant is OK? I cut the yellow leaves off in shear (heheh) panic... now i'm just tying to be calm (grin).
All help appreciated! Thanks so much!