DanKu
Sometimes its best to stop, and stand back. Before you spray anything else, try and get a real ID on your bugs. By all means spray the Essence for your LSF problem, but let's try and get a real view of the pest and whatever it is that is causing the webs you speak of.
So can we see, if possible, a really good and clear picture of the underside of a leaf that has the spots and so on? And can we also see a pic of the webs and how they are on the plant?
I have SBPI at hand in case of Spidermite infections, although I've not needed to use it for a year or two now. But it does, for me, work perfectly. Three applications, problem gone. Folks complain about it deforming leaves etc, but I've only seen it do that when over-used. It is strong, it works, When I use it I use it very very carefully.
Sounds like you have a recurring problem? If so, there is need to address that. It is important first off to kill all bugs. Then you have to sterilise your room. Then you need to ramp up your hygiene programme. Its amazing how many folks dont have a hygiene programme (= a regular cleaning discipline), and then wonder why they have probs like fungus and pests.
And then you need to ask "Why?"
But maybe the answer is not so far off.....
QUOTE (DanKu @ Sep 28 2009, 08:37 PM)

i just use the passive intakes on the side of my tent, its got netting over it, mabye the holes arnt small enough
I never use nets/nylons or anything. Seems pointless to me, when every day you are going to open the door anyways. But that's not a debate for now - what I think is maybe worth thinking about is an inline fan to act as intake. Get more fresh air in there.
Ventilation/environment!!
Its impossible to over stress the importance of this. Insufficient ammounts of slow moving or stale air in a growroom are a disaster waiting to happen. You need maximum extraction and intake. It was when I learned this (the hard way) that my growroom at long last began at least to look half way "dialled-in", and I began to see the back of bug-ridden, fungus covered, crispy and burned looking plants at harvest.