Hey Man, you are about in the MOST Important stage, be careful and be wise and be Patient.
Can you get a small microscope from Radio Shack to look at those trichs? If not, wait at least 8 and half weeks at soonest to harvest when there are no white hairs to be seen and theya re all reddish brownish looking.
I can not tell from the pic if those are Hydroponic of dirt . Either way, 2 weeks b4 Harvest, you want to flush them real good with pure water, NO nutes. AND AGAIN- BE PATIENT ! What you do now is so importnat to flavor, taste and strenth and THC content. Do not rush to HARVEST and do not try to quick cure. It is so tempting to want to smoke one, but if you let them dry naturally, the sugars will give them such a taste. You do not wANt to smoke you first J and it taste like Mexican or like dirt or like smoke AND THE HIGH NOT BE THERE LIKE YOU EXPECTED.
GOOD lUCK AND BE PATIENT.