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Post by macamus3 on Oct 21, 2007 14:25:01 GMT
It is most likely heat stress. I had a N. ramispina cuttting I tried to acclimate to higher temps as a experiment. Did great for the first couple of months. Then it showed the same decline as yours and finally died. Whereas another cutting given strict highland/intermediate conditions and came off the same plant did great.
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Post by turkeypig on Oct 28, 2007 5:36:32 GMT
I had the same problem with mine. I think it was a mite infestation. It died before I could save it.
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Post by agustinfranco on Nov 16, 2007 22:07:02 GMT
Hi all:
With all my due respects gentlemen, please look at the picture again. It looks like rhillier has 2 basal growth points: one at 9 O'clock and the other one at 12. I see smaller leaves behind the big ones. that usually slows most species down. Mikei loves to produce basals. Whether this is a natural phenomena or produced by TC chemicals, i am not in a position to say, but since i grow several plants of this species, i have noticed basal growth production in let's say 30% of the plants.
My suggestion: to cut the basals and wait another 6-8 weeks for new growth to start on the main plant. This species is sensitive to root rot as well. Hopefully rhillier's media is well drained
Gus
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Post by Dave Evans on Nov 17, 2007 3:07:05 GMT
Hello Gus,
Yes, and killing an infested growing point and starting from lower down with new branches is a typical reaction plants have when attacked by pests. It helps keep the pests from producing enough young to kill the plant. Sometimes this works, sometimes not. I would not cut the basals, since it appears that the plant is having some trouble with the main stem, or first branch.
If the damage starts to appear on the new growth, you can be sure it is a pest that is still present. If the new growth continues looking good, then either the pest is gone or the damage was simply mechanical in nature, like the growing point was bruised or somesuch.
Nepenthes mikei regularily produces stolons and pups from the base of the plant.
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Post by agustinfranco on Nov 18, 2007 4:30:02 GMT
Hi Dave:
Your suggestion sounds good, but cutting a basal does not mean toss it out!. i'd start a new plant(s) from the basal(s). If there is a nasty attacking the main plant, starting again from the basal is in my opinion more sensible than trying to cure the whole plant. usually fungal pathogens stay in the main plant no matter how many doses of fungicide the plant has acquired. Mikei is very easy to grow in my opinion, unless there is something really wrong with the plant, it will recover anyway. Sometimes plants throw basals even if they are in good health. I've noticed this with several hybrids and some species.
Gus
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Post by Dave Evans on Nov 18, 2007 4:38:40 GMT
Dear Gus,
Yeah, that sounds like a good plan, if the basals are large enough to excise without doing further damage to the plant.
Most of the time damage like this is mechanical in nature, or is heat damage. It could be a fungus, but it doesn't look like it to me...
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Post by borneo on Nov 19, 2007 6:11:51 GMT
Hello,
This is probably way too late to be of much use but I agree with Dave. I would be fairly sure that there is a mite infestation going there. One mite that loves Nepenthes is the two spotted spider mite but whichever species, they are not killed by regular insecticides. You need to either suffocate them with oil or hit them with usually 3 successive applications of a miticide.
Good luck!
Rob
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