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Thread: Nepenthes leaves turning black

  1. #1

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    Hello,

    My Nepenthes alata plants have leaves that are starting to turn black at the tips. It has not pitchered well since I bought it, but I know this is due to my temperatures being too high for the plant. I hope to correct this by the end of the month.

    Soil has been kept moist. I do mist it once a day and the humidity level is always above 70%.

    Both plants have 3-5 new shoots growing off the main stem around the base of the plant.

    Any idea why the leaves are turning black?

    Thanks,

    Nick
    Nick

    Careful where you crawl, it might be a trap!

    http://www.carnivorium.com
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  2. #2

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    yeah that is happening to my maxima exept the pitchers are turning black! 3 pitchers have gone from green to black in a month! 1 is just the tips,though [img]http://www.**********.com/iB_html/non-cgi/emoticons/sad.gif[/img]

  3. #3

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    hmm, my guess would be, if the plant calls for a certain temp at night, and your temps are above this, then eventually the plant is gonna die , slowly, but will die, i think thats why the black is happening.


    ccrider

    oh yeah, think about where your insects are coming from, if your house has been sprayed for pests, etc. and watch for drafts too!
    follow your desires, even the spur of the moment has its purpose in life!

  4. #4

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    One thing I forgot to mention about the plants. They have grown 8 inches since I bought them. I have at least 3 large growing stems on each.
    Nick

    Careful where you crawl, it might be a trap!

    http://www.carnivorium.com
    http://www.buckeyecarnivores.com

  5. #5
    Tony Paroubek's Avatar
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    hmm old leaves I wouldn't be concerned but if it is younger leaves or all the leaves then there is a problem. You say it is the temperature but yet you don't tell us the temperature range the plant is being subjected too!!![img]http://www.**********.com/iB_html/non-cgi/emoticons/confused.gif[/img]?

    Other possible causes would be too high a dose of fertilizer or perhaps hard water or built up salts in the potting mix over time.

    T
    Is that a Nepenthes in your pocket or you just happy to see me?

  6. #6

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    Temperatures are between 65-80F. I have given both plants a foliar feeding of superthrive: 1 drop/gallon. I did not put any in the soil mixture. At one point about a week ago, my East facing window was left unshaded for about 3 hours. Could this be signs of sun burn?

    Quick condition breakdown:
    Temp: 65-80F

    Humidity: 70%-90%

    Water: I have been watering with either distilled or rain water. The soil mix has been kept damp at all times and has not dried out at any point.

    Light: Under flourescent lighting and sunlight from a North window.

    Here is a photo of one of the leaves.

    Nick

    Careful where you crawl, it might be a trap!

    http://www.carnivorium.com
    http://www.buckeyecarnivores.com

  7. #7
    Tony Paroubek's Avatar
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    looks like sunburn. Was that leaf facing or have you noticed if it is all on the side that was facing the East window?

    Thing about sunburn is there is usually an area around the really burned part that is only damaged and it fades into healthy tissue. It also is characterized by not continuing to enlarge after the initial damage unless the sunburn reoccurs again. Rot, disease, problems with salts, insects etc show steadily enlarging areas of damage without treatment.
    Tony
    Is that a Nepenthes in your pocket or you just happy to see me?

  8. #8
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    It kind of just looks like an aging leaf to me [img]http://www.**********.com/iB_html/non-cgi/emoticons/confused.gif[/img] . If the leaves are more toward the base of the stem, that's probably what it is.

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