While you might increase resin production- MIGHT- you are also quite likely going to stress the plant into producing.... wait for it...wait for it... NANNERS! eww.
Classic pot plant response to stress.

You want more oomph, use a carbohydrate supplement.
You want more sparkly, run SnowStorm.
Heck, run both!

Both cheap and effective!!!
stinkyattic Reviewed by stinkyattic on . Darkness Before Harvest? Anybody used 2 or 3 days of darkness before harvest? Does it increase resin production? Rating: 5