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Post by tuuagso on Oct 28, 2012 5:26:56 GMT -10
Hello guys, this time I'm asking for your help, because this species is really freaking me out, no matter what I do, is all full of these red spots, and I don't think it is a parasit because it's the only plant having this problem, I hope you can help me. The plant is growing with all of my highland plants (26°C at day (80°F), 10°C at night (60°F)) with filtered sunlight and humidity about 90%. The substrate is 1:1:1 peat moss, perlite and coco fiber.       This is the most picky species I've ever had, even N. talangensis and N. rajah are growing well with me, but this one is just a challenge, what do you think guys? |
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Post by dueoka on Oct 28, 2012 7:42:07 GMT -10
N. sibuyanensis is supposed to be one of the more picky nepenthes species. I picked one up from Tony this past summer and so far it has been growing steadily. I've got mine in intermediate temperatures (70-80˚ days and 65˚ nights) with humidity anywhere from 70-90%. I have all my plants outside on benches in full sun, but I heard this one liked some shade so I've got it tucked between some larger plants to keep it sheltered. It's growing in a mix of coco chips, cinder and orchid bark. Hasn't pitchered for me, but it's been putting out leaves steadily and increasing in size.
How long have you had this plant? Those red spots look to me like sun spots from higher light exposure. It's very possible that the plant is just adjusting to your conditions.
Hope that helps!
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Post by tuuagso on Oct 28, 2012 13:59:57 GMT -10
I've had this plant for 1 year 7 months, and it produced a few pitchers not long ago. It never gets full sun, so I don't know what's going wrong.
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Post by william9in on Oct 29, 2012 5:54:35 GMT -10
Looks like leaf rust fungus?
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Post by kevnep on Oct 29, 2012 21:56:09 GMT -10
I dont think the spots are snything you have to worry about some nepenthes simply do get them. Since the leaf size is increasing id say your plsnt is happy, sibu is a picky plant that doesnt pitcher often with some exeptions, im my friends old greenhouse he had a beautiful sibuyanensis that produced pitchers on almost every leaf and produced uppers frequently
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Post by tuuagso on Oct 31, 2012 5:49:34 GMT -10
Thank you so much kev.
I've got to know the secret to keep a sibuyanensis like your friend's one...
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Post by kevnep on Oct 31, 2012 9:58:42 GMT -10
I still dont know, he kept everythimg happy in there basically he kept it cool at night but during the day it did get quite warm but always humid. He also regularly fertilises his plants with coffee and fertiliser and he uses osmocote too.
But overall id say you plant is doing fine and you should see pitchers soon
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Post by kevnep on Oct 31, 2012 10:00:25 GMT -10
If you are still worried just spray with a fungicide that other nep owners spray with and thats that there shouldnt be any problems.
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Post by william9in on Nov 1, 2012 11:02:08 GMT -10
Your plant looks very yellow in the photo, I would give it more shade and us a systemic fungicide. At 90% humidity do you use a fan to move the air?
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Post by tuuagso on Nov 1, 2012 19:31:59 GMT -10
Nope, I'm not using anything to move the air, maybe that the problem, but it is the only species looking like that, I'll change the substrate too, I think I found an earthworm...
I'll see what can I do to those red spots, I'm afraid of using a fungicide, I time I did it, I killed a N. albomarginata, so maybe I'm using a natural one this time, like cinnamon tea.
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Post by dueoka on Nov 2, 2012 6:28:37 GMT -10
The substrate seemed a little thick to me, maybe adding something to loosen it up when you repot would be helpful. Otherwise, for a natural fungicide I would recommend neem oil. I haven't used it for fungus but it is supposed to be effective at preventing rust. Most importantly it's safe for plants and my skin so I don't have to worry about handling toxic chemicals.
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Post by william9in on Nov 2, 2012 17:18:17 GMT -10
I agree with Dueoka. Neem is an oil so use it at night so the plants don't burn with high light. Repot and lighten up your substrate. ( It's also hard to tell with a photo. )
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Post by peterhewitt on Nov 13, 2012 10:02:40 GMT -10
I struggled with this Species until I changed the Substrate to Coco Husk chip and Perlite, now after two years with no Pitchers the plant is Pitchering with all my others. They also seem to like lees light but not shade.
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Post by william9in on Nov 13, 2012 12:34:03 GMT -10
Glad to hear it. I don't know any nepenthes that will benefit from full shade?
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dicon
Urceolatae
Posts: 32
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Post by dicon on Dec 6, 2012 11:37:40 GMT -10
N.sibuyanensis is a tricky one, I have 2 large plants of flowering size, that regularly pruduce very big pitchers, uppers are rarer, but once you get it right they also come.
I think the plant looks a bit yellow, it should be apple green like a granny smiths.
I think that this is not caused by too much light but more likely from being too wet at the roots, let it dry out between waterings.
Light levels need to be bright but without too much direct light, maybe some late afternoon sun.
The spots look like water damage and fungal infection, sibuy is a bit prone to leaf spots, but responds well to systemic fungicides without problems. Increase air movement so that leaves are kept dry.
N.sibuy has very tough leaves, this is often an indication that lower humidity fluctuations are not a major concern for a plant, however in practice sibuy does like good local humidity to encourage pitchering (I think this is why it likes to bury the tendrils) so combine this high local humidity with good air movement (which paradoxically has the effect of countering the humidity and so helping with the fungal problem) and your sibuy should respond well.
hope this helps
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