Yellow dots on leaves

[Eden Marel]

My Nepenthes ventrata has a couple leaves that have yellow dots on them, what is the cause? Can I do something about it? Deficiency?

 

[Brokken]

It maybe some kind of chemical burn. Did you spray them with any kind of fertilizer or perhaps inadvertedly got something like a cleaning product (ammonia) on the leaves?

 

[Eden Marel]

Nope no ferts or chemicals. It lives in here: http://www.terraforums.com/forums/showthread.php?t=124201

Except now it been living on the top shelf for a while now.

 

[Presto]

Is it happening on just the older leaves, or younger leaves as well? How much light was it getting before, and how much is it getting now?

 

[RL7836]

Are your growing conditions so humid that water droplets stay on the leaves overnight?

 

[kulamauiman]

is there a corresponding dot on the lower leaf surface?

 

[Eden Marel]

Is it happening on just the older leaves, or younger leaves as well? How much light was it getting before, and how much is it getting now?

I think those two leaves are older, they are leaf closer to the bottom of the stem. I have one 17w fixture, haven't changed the lightbulb.

Are your growing conditions so humid that water droplets stay on the leaves overnight?

Possibily, but now I open the little doors I made out of saran wrap at night so it shouldn't have any more drops. It was a little too humid a couple times.

is there a corresponding dot on the lower leaf surface?

Seems like the yellow dots cover the top 3/4 of the leaf. The closer it is to the stem, no yellow dots.

 

[Zhilin]

Seems virus or fungus. Spray fungicide to see what happen.