during winter i've noticed that some nepenthes start to have some problem, especially since i keep them on windowsill until i can build a proper greenhouse. The leafs start to go brown on the edge and even the new growth has that, so i assume is not old age. I've had an nepenthes ampullaria and it did great until winter times, then the browning of the edge happen and then leaf by leaf went away while the new growth couldn't keep up. It seems to be a slow process, it took N. ampullaria about 2-3 months before it died completely. Is this some sort of virus or fungi related? I know this hybrid is an intermediate or maybe it loves warm temperatures more than other intermediates and my windowsill gets too cold for it?
photos of nepenthes hookeriana - https://imgur.com/a/zWwFm
photos of nepenthes hookeriana - https://imgur.com/a/zWwFm
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