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Thread: Nep pest problem

  1. #1
    dustin's Avatar
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    Nep pest problem

    Hello, well after finding out i had a pest on my nepenthes in a trade felt i should take some action and ask the forum if anyone could identify the pest and how i can treat it.

    the nepenthes was inside a propagation tank along with tons of cuttings that were rooting, and tons of germinating dews. this is one cutting that i believed shows what might have been on the plant i sent. to me i thought the leaves were discoloring because they were rooting cutting. the plants are under at least 85% humidity, with 2 24 or 26 compact florescent lights that hit them for about 10-15hrs a day, the leaves might also have some speks of dirt on them.



    I also noticed something new on one of my newly received nepenthes, this i dont think would have been the one that traveled along with the other plant because i received these after the trade.



    can any help? is the 2nd one scale? its only effecting one leaf shsould i clip it off before it spreads? the plant is being isolated. the first one i have no idea. Personally all i have delt with is squirrels, chipmunks, aphids and a little bit of scale that i was told might not even be scale.

    thanks
    dustin

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    Tony Paroubek's Avatar
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    I can't really tell much from the first picture. The old leaf is obviously dying but it could be simply the age and the cutting as you say or something is causing it. It is a bit odd that it is the entire one half that went first which could indicate something but not necessarily. Can you be more specific on what was supposedly found on the other plant? Any photos of that plant? Or take some photos of the underside of the leaf?

    The second one with the sunken brown pits on the new leaf looks like damage from being too wet and cold on the tender young leaf for a prolonged period during shipping. It looks kinda like the very young leaf in the center has also been killed. I would leave it alone unless it is clear that the affected areas are growing in size.
    Is that a Nepenthes in your pocket or you just happy to see me?

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    dustin's Avatar
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    um xantius is posting a pic...ill take a pic of the underside of the leaf for you of the first plant.

    thanks, for your input. #2 i did put them in a bag for acclimation, but i took them out because they have been in them for about a week, so ill see how it goes.

    i was told #1 looks like spider mites can anyone back it up?

    going to get more pics[COLOR="green"]

    ---------- Post added at 02:36 PM ---------- Previous post was at 02:26 PM ----------

    back of #1's leaf



    looks like the leaf died on how the stem split

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    Tony Paroubek's Avatar
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    Sorry hard to tell much from the photo. Spidermites you can usually see with a magnifying glass. They also will make the underside of the leaf bronzy brown in color where they are centered. In really bad cases the whole underside of the leaf can get a brownish color. They also tend to be easiest to find on the older lower leaves if they are attacking a plant.
    Is that a Nepenthes in your pocket or you just happy to see me?

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    dustin's Avatar
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    ill try to get a better pic tomorrow, i was taking them fast because the battery was dying....

    can spider mites be treated with neem oil?, im guessing the leaf is done for and hopefully nothing effects the new growth tip, it might just be age, but i could use some neem oil to make sure. the white stuff on the leaf is most likely rooting hormone.

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    xantius's Avatar
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    Here are the pests that were on the leaves of the Nep I received. They appear to be some kind of white grub type pest with small head and tail.






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    Tony Paroubek's Avatar
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    nah... that's that tropical whitefly thing. Although some think it is a scale of some sort, I am going with the whitefly. Most insecticides should work on it but I wpuld probably use orthene since those little buggers get down into the nooks and crannies.
    Is that a Nepenthes in your pocket or you just happy to see me?

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    Carnivorous plant enthusiast vraev's Avatar
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    Holy God!! Those are a nightmare. I remember them a bit too well. I threw away 5 neps to prevent further spread. IMO...its not whitefly. I have had those insects for months and never ever did I spot a single adult whitefly. It is in my opinion a form of scale. The big ones in the first pic that are like greyish pink color are female. The white ones are male. THere are smaller ones which u cannot see which are crawlers that do a heck of a lot of damage in terms of spreading to neighboring plants. I think its called the cycad scale or something. If it is a very precious plant...I would do regular (every week) alcohol swab treatments. On top of that...to treat the roots...I would use a systemic insecticide and thoroughly drench its roots once u unpot it. Then...after 10 min or so of drenching...repot it into fresh media. Seperate the plant and watch it carefully and continue alcohol swabs. Hopefully they should go away. To be safe.... drench the pot and plant after 2-3 weeks again in systemic insecticide. That should get rid of it.

    Although...I personally didnt want to risk more spread and threw away 5 neps which showed infection signs. I did manage to save a couple which were precious using basically just alcohol swabbing regularly.

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