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'yellowing' leaves on some of my Nepenthes


lesthegringo

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Guys, the plants seem to be doing quite well, but I have noticed a few (not all) of my adult plants where the leaves have gone a yellow shade of green, rather than the deep green of the others.

 

We have seen a couple of days of high temps, with the greenhouse one day hitting 41 degrees, however humidity has never dropped below 70% and all the plants are misted and drip irrigation watered.

 

The only two causes I can think of could be excessive light, which obviously comes from the sun shining on the house, or the aforementioned heat. As I have 70% shade cloth covers over the greenhouse when I know there will be sunshine during the day I can sort of control that part, but don't want to block off the light when the sun isn't out. For the heat, I can open a vent to ensure the heat isn't excessive, with the potential humidity hit I would get.

 

Any suggestions or thoughts?

 

Les

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