User Tag List

Informational! Informational!:  0
Likes Likes:  0
Results 1 to 8 of 8

Thread: Some help needed for a few problems.

  1. #1

    Join Date
    Sep 2015
    Posts
    5
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Some help needed for a few problems.

    Hi everyone,

    I am kinda new here and also about a month in keeping neps. I have 3 problems here.

    Country: Malaysia
    Day: 31 celcius Night: 24 celcius
    Water: Tap water (cant afford a tds reader, yet)
    Soil: coco peat with perlite.
    No mister/fogger but I mist whenever I am outside so maybe twice a day.

    Specifications above especially for water and soil is advice from the local nep nursery.

    N.bicalcarata has some rusty spots on 2 of its oldest leaves which seem to be slowly spreading.


    N.miranda with curling leaves.


    N.ventrata and N.bicalcarata. White spots started on the ventrata and have been spreading all over the plant including my bical.

  2. #2

    Join Date
    Sep 2015
    Posts
    5
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Just in case anyone is following this, the curling and white spots has been solved. The cause was thrips and I did a full insecticide and fungicide spray. Still feel it is kinda weird that thrips has such an effect on neps since I am used to them infesting my other 'normal' plants and it does not look like that. I also repotted the plants just to be safe in case it was mineral buildup.

  3. #3
    NECPS President Dave S.'s Avatar
    Join Date
    Jun 2003
    Location
    Northern MA
    Posts
    589
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have a N. bicalcarata that has the "rust" on the leaves which is most likely a common nepenthes fungal infection due to stress. If your new growth is not repeating this pattern, you should be OK. I would not mist the leaves with water. I would guess that growing this plant outside in Malaysia is a humid enough environment without the need to mist in my view.

    The curling leaves on the N. miranda could be a sign of root stress; which could be from thrips or something similar.

    I am glad you solved the pest problem.

  4. #4

    Join Date
    Sep 2015
    Posts
    5
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Dave S. View Post
    I have a N. bicalcarata that has the "rust" on the leaves which is most likely a common nepenthes fungal infection due to stress. If your new growth is not repeating this pattern, you should be OK. I would not mist the leaves with water. I would guess that growing this plant outside in Malaysia is a humid enough environment without the need to mist in my view.

    The curling leaves on the N. miranda could be a sign of root stress; which could be from thrips or something similar.

    I am glad you solved the pest problem.
    Thank you so much for the advise. The rust is on the 2 oldest leaves and not spreading so I am just keeping an eye on it. Hopefully everything goes well lol. Thanks again!

  5. #5
    Whimgrinder's Avatar
    Join Date
    Jul 2011
    Posts
    3,875
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Dave used the term "Rust" in double quotes to indicate that - although this is a word commonly used to describe this particular fungal affliction - it is not a Rust fungus at all; it's Cercospora.
    And yes, it generally affects only older foliage as it senesces, or plants that are stressed. If it's not affecting newer foliage, then it's not a problem. Photos of Nepenthes species in situ often show signs of this affliction on the foliage. It seems this genus has evolved to have a relationship with the pathogen. Many species grown in cultivation exhibit some signs of infection; it's normal. You just don't want plants to get so stressed that the fungus runs amok in the plant.

  6. #6

    Join Date
    Sep 2015
    Posts
    5
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Whimgrinder View Post
    Dave used the term "Rust" in double quotes to indicate that - although this is a word commonly used to describe this particular fungal affliction - it is not a Rust fungus at all; it's Cercospora.
    And yes, it generally affects only older foliage as it senesces, or plants that are stressed. If it's not affecting newer foliage, then it's not a problem. Photos of Nepenthes species in situ often show signs of this affliction on the foliage. It seems this genus has evolved to have a relationship with the pathogen. Many species grown in cultivation exhibit some signs of infection; it's normal. You just don't want plants to get so stressed that the fungus runs amok in the plant.
    Understood! Thanks for the explanation!

  7. #7
    theplantman's Avatar
    Join Date
    Nov 2010
    Location
    Athens, GA
    Posts
    973
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Whimgrinder View Post
    Dave used the term "Rust" in double quotes to indicate that - although this is a word commonly used to describe this particular fungal affliction - it is not a Rust fungus at all; it's Cercospora.
    And yes, it generally affects only older foliage as it senesces, or plants that are stressed. If it's not affecting newer foliage, then it's not a problem. Photos of Nepenthes species in situ often show signs of this affliction on the foliage. It seems this genus has evolved to have a relationship with the pathogen. Many species grown in cultivation exhibit some signs of infection; it's normal. You just don't want plants to get so stressed that the fungus runs amok in the plant.
    +1. And also, a high-K and low-N liquid feed will promote the plant's immune system fighting off Cercospora. Bical is a heavy feeder, particularly of K.

  8. #8

    Join Date
    Sep 2015
    Posts
    5
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by theplantman View Post
    +1. And also, a high-K and low-N liquid feed will promote the plant's immune system fighting off Cercospora. Bical is a heavy feeder, particularly of K.
    Haha more info that i did not know! Thanks!

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •