bahah, the burn on the stem is probably from clonex or some other strong
root stimulator. "what works for some doesn't work for other" has nothing
to do with whether a bug infestation is causing the problems we see here,
you are focusing on a part of the plant which has nothing to do with these
problems.
You still havent told me the bug that does this, I have looked through a couple
of my Horticulture textbooks and don't see any that resemble this.
The problem with the plant here is the mobile nutrient deficiency,
obviously it is a mobile nutrient because it is the older leaves showing
deficiencies, if it were a secondary or micro nutrient it would be on
younger leaves.
Secondly the plant is clearly over watered (notice the droop)
which would also fluctuate the pH, WHY WOULD BUGS
CAUSE THESE CLEAR DEFICIENCES?
I am demeaning you because you act like you know exactly
what you're talking about. And you are only on your second
grow. PERIOD
I don't care how "Smart" I am, I went to school for Horticulture,
meaning I have experience which you do not, Smarts means
nothing in this game kid, only experience.