It is speculated that trics may preform any one or combination of the following functions....protection from UV, protection from bugs, protection from dessication, attracting humans, making herbaviors forget where they found it, enhancing fertaliztion, and so on
In my experience it is the lack of humidity, not the lack of water in the soil that brings out the trics more...of course excess humidity can be caused by overwatering pots and it evaporating into the grow room |