Quote:
Originally Posted by SouthPark
Merita ----- do those webs appear even in parts of the tree that aren't occupied by the orchid's roots?
If suffocation appears to be what is happening, then could probably try spraying pyrethrin into a test area (away from the orchid) ------ to see if it is effective. Or spray some imidacloprid onto the test area.
Otherwise - if it happens to be fungal threads ----- not sure if it is - then could also spray fungicide in another test region.
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I thought they were thrips nests but when I peeled off the bark on the substrate I saw that it was strongly attached to it, I think it is an insect but it is not visible, and I am seeing the bark that is degrading in those parts, I already applied insecticide Orthene but you have to break up that spider web, I don't think the water will penetrate, I have seen new roots covered as well. I am peeling off the substrate and cleaning it superficially, I cannot change it, there are many.
---------- Post added at 01:13 PM ---------- Previous post was at 01:11 PM ----------
Quote:
Originally Posted by estación seca
Another possibility is fungal mycelium growing on decomposing bark.
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They are not very wet, there is a lot of dry and I cannot water every day
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