basically to answer your question, it doesnt make more THC, once plucked, fresh weed isnt very psychoactive at all, once it has dried and been cured it becomes psychoactive, i pulled a plant the other day, and i was real pissed off because it was COATED in THC but the effects only lasted about 5 minutes, then when i dried it properly, it got me fucked lol so there u go, dry it and enjoy...