What is going on with the dendro's??

[calypsoB]

Ok so I accidentally left them outside during some bad weather. Ever since then I lost most leaves, have had a scale infestation, mite infestation and mealy bug infestation. It hasn't been a great summer on the bug end of things :S But not I am noticing that there is a brown ring around the canes of the dendros. Is this a major disease? or something that I can just live and let live?


This is also on the nobile types... but slightly more defines as a ring.

Also I purchased some not so happy cat's and laelias but now I am wondering if they have issues too?




So I would love some feed back about what can be done for them or if I should worry. Also I do need to repot the Laelia but I am currently out of supplies :S It was dehydrated prior to purchase too. I have recently pulled it out of pot and found a lot of roots gone, so I have cut them back and tried to get rid of as much black rot as possible. I have also sprayed with cinnamon alcohol. Thanks for the input!

[Island Girl]

Umm... Wow, I'm sorry you've had so much insect trouble, I had a bout of mites last summer, that took out a number of mine, and I would suggest going nuclear, and not using homemade products at this point... Try Bayer 3-n-1, it is a safe product, and should take care of all the bugs you mentioned.

As for the brown rings, I have no idea... I'm sorry.. Hopefully someone who knows will be along shortly.

One thought... You mention that you have gotten some iffy Catt types.. Did they by any chance bring anything into your collection? (ie bugs) Did you isolate them when you first got them, so as to keep anything they had from infecting your others?

[calypsoB]

Actually I got the catts after the bug issues...it has kinda been a snowball for bugs..oh and sunburn. All the bugs appear to be gone for the moment...knock on wood! But it seem that now I am getting more rot type things :S Our weather has been a little different this year. I think I will pick up some superthrive to get through winter...

[NYCorchidman]

I don't have anything like that on my nobile, but a couple of phal type dendrobiums have something similar (I'm not sure if it's the same thing) on their canes. So far (a few years), the ring seems to be just a scar of some sort. No ill effect on the plants.

Your cattleyas do not look healthy to me.
It is always best to avoid plants with marks or spots and not worry.
The marks and spots can be of various origins such as fungal, viral, physiological and cultural issues. Some are easy to identify what the cause is, and some are not easy to identify.
Again, buy healthy clean looking plants and save yourself worries and headaches.

[calypsoB]

It is true...but they were very inexpensive and my only hope to afford these varieties the last one was a seedling I have had for awhile that suddenly developed this after purchasing the new catts. So they are all in quarantine. Actually since separating the unhappy ones from the rest the healthy ones are reviving. I was worried I was about to loose them all for awhile :S

[NYCorchidman]

Yeah, the low price can be really attractive, but if you end up worry all the time and poor plants never make it anyhow, then even the lower price is not worth paying you know.

Good job with separating them. Better safe than sorry.
Well, at least you have a separate space to host "sick" looking ones. You can still grow and see what happens if you choose to do so.

[Island Girl]

Yep, I certainly understand the attraction to the low price, but, I've learned that orchids that I thought I might not be able to find one year - that are either expensive, or are suspect, it usually turns up the next, or the next... but.. If you don't know about this vendor yet, Carmelas orchids ( Orchid Growers - Hakalau, HI - Carmela Orchids ) is a great, reputable vendor, that has really good prices. Check them out (Tropical Orchid Farm is great too, but they have a minimum order amount $40.. But, you can really get alot for that amount, depending on what you get). A local Orchid Society is another good place, ppl there often trade/sell (for very, very good-low prices) their extra divisions of stuff... Also, I'm sure you could trade with some members here too.

I'm glad you have a separate area for quarantine! And glad to hear that your others are doing better since you separated them. Good Luck!

[kindrag23]

My dendrobium nobile type has this on its keikis and part of the mother plant they all seem okay thus far...glad to hear all your babies are okay.

[calypsoB]

ok, so no worries about the dendros..but what about the catts?

[Bud]

What are the names of your plants? Are they all NOIDS?
I wouldn't know if the Dendrobium is on early winter rest ....or maybe it doesn't need rest....all I know is that it is a Dendrobium Phalaenopsis by the way the canes are growing.
The Cattleyas have mechanical damage, it also have cold water droplets damage and the way some of the black dots look like its bug suckers that developed fungi infestation. You have a new lead on one Cattleya (picture #4) that is starting to have dark spots at the base due to fungi infestation better give this your full attention, you don't want to lose the flower.