leaf decoloration, posible clorosis?
Hello
The leaf that shows in the picture belongs to a prostechea cochleata that has this leaf color for quite some time now. I fertilize every 10-15 days with a 18.18.18 solution of 1gr/lt no bugs were found in the plant (rotate between imidacloprid and piretrine almost same interval at the minimun dose). located facing north with partial shade and water everytime plant medium looks dry (by pot weight). Plant doesnt have shriveled bulbs or any noticeable root damage (actually the total opossite, first year I have such plant with good nicely formed bulbs and large roots)
One of my dendrobiums near him recently developed similar leaf patterns and now Im thinking of some type of condition far more advanced for me...
So, any suggentions on how I can procede?
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jrguevar 
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