If the No Pest Strips don't work you are probably doing something wrong, or you are that 1 or 2% that aren't able to get them to work. Remember:

- Like Image Reaper says it is not the sticky trap, but the trap that smells funny. Look at the pictures of the package I posted in one of the threads I linked to above.

- Make sure you use as little ventilation as possible. I don't see why you can't completely turn off your ventilation at night for a week or so. This should do the trick. Just make sure you don't see any new eggs, and you are done.

- There are a very few species of mite that have become resistent to the chemicals in the strips. If this is the case, try bombing or fire.

- The strips will kill ALL insects and bugs, including beneficial ones.

2 strips should be plenty in the space you mention. If you are picking off webs, you have a real bad infestation, and like me, waited too long to do something about it. I would highly reccommend that you dunk your plants in a neem oil solution like I mention in one of those threads. This will kill 90% or so and get rid of all the webbing. Then use the strips with no ventilation and you will kill the remainder.