i see the pics thanks for posting those
that type of thing can really beat the crap out of plants
i really am not good on the cause of it,
and have seen this kill chilis before.
it seems like some chilis will drop all of their leaves after showing this
starting from the top and continuing all the way to the bottom.
i am pretty sure i have seen a small population of chilis that has
fully recovered and has continued afterward. my guess has always been
that the weather changes and motivates them onward.
if you are patient some might recover
but there may be other agents of doom at work with this
i have asked my chili growing farmer friends from mexico about it and they call it "plaga" (means ±plague)
they say: they do not know how to fix this
maybe some others here know what is up with that stuff and can offer strategy for
TREATMENT?
edited to improve appearance