Catts leaves - whats wrong?

[Lagoon]

Hi all,

I'd like to here any comments or sugesstions about this troubled catt. I've had it since it was a little tike (about 3 years) I'm not sure what the problem is, I'm not having this problem with my other catts.
I don't know if it could be nutrient deficiency, phosphorus toxicity? Something else .....?

Its potted in a combo of sphagnum moss, bark and course rok.
Ph 7.2 med hard water. Ferts 8-7-6 every 3rd watering.
It seems to start from the top and work its way down, even the most *recent growth* has started, its not from older growth as I though in the beginning. I would think these bulbs would live much longer then 1.6 years.

Thanks for you're help

[Donald]

Are you growing under lights? If not, has it been exposed to a lot of sun light recently? Usually the yellowing of leaves, as you probably know is from too much sun. Just a guess.
Donald

[Lagoon]

Hi Donald, Thanks for you're thoughts
I should have mentioned the lighting. Its not been in the sunlight. I grow under fluorescents lights. I thought it could be from to strong of lighting aswell .. But, the color is not yellow its a washed out white look. I have catts that have that yellowing from bright lights, they don't look the same.

Gee I just don't know

[Anglo]

My first reaction was the same as Donald's; that this has something to do with sunlight. Evidently not, since you grow under fluorescent lights.

The irregular patterns are confusing, but the bottom line appears to be that there are localized chlorophyll deficiencies in the leaves. I don’t know why that would be. If there is no pathological cause, then the next guess would be a nutrient issue. You could address that by giving the plant additional nutrients.

Trace minerals, Epsom salt (1-2 teaspoons per gallon of water), liquid seaweed, and increased nitrogen are all good for greening up leaves.

If this plant were mine, I'd try a diluted fertilizer and some liquid seaweed with every watering for awhile and the trace minerals and Epsom salt maybe once a month, beginning now. Maybe that would help.

[(..._...)]

If you go to Clouds website, and check the orchid doctor, they show a similar pattern of discoloration and mention that it could be a minteral deficiency. It isnt as white or cover as much of the leaf but it looks similar.

Good luck!
Cam

[Lagoon]

I agree Anglo, thats what has me thrown off - the pattern of it.
I did dose with some ES about 5 days ago. The badly mottled leaves stayed the same as I expected, tho' the newer growth is abit better. I have seaweed and 25-10-10. Looks like I'll be putting this to work for the next lil while. I don't know why what I have been using so far is NOT working?!
Thanks for you're idea's

Cam, I did go to the clouds site to see if they had anything like the issue I'm dealing with. They did have a photo of a blotched up leaf, but it was more of a calcium issue, which I've also dealt with when I received some s.s. few years back. They're doing beautifuly now
It just doesn't look the same to me. Looks like I'm dealing with more of a nitrogen deficiency *I think*

BTW - I did email Warren this morning, hoping to hear back soon.

Thanks Cam

[Weebl]

If you're fertilizing every 3rd watering, i doubt you would have a N deficiency. Remember, plants in the wild have very limited nutrients available unless their roots meander to a detrius patch to cache in on decomposing litter. It looks to me like chlorosis, probably due to Calcium or Magnesium deficiency. At the same time I had a L. purpurata that was doing this, and once I changed it's potting medium from dolomite to bark/charcoal it hasn't returned.

Let us know what works!

[cday2inflorida]

My guess is maybe a fertilizer overdose?

[Lagoon]

And we're off ... in all different directions. heehee
Re: overdose - Ok but wouldn't the leaf tips brown?
I'm going back and forth on this mineral thing, wouldn't the med hard water take care of this with the added fertiliser?
Ooh the confusion in me

Thanks for you're comments