I was just reading this from YT..WITH 40 YEARS of experience in the game....I STRONGLY feel this is a legit concern, and I DO decrease intensity the last 10-14 days of flower....Couple reasons...I am reducing nutrients which make the plants more susceptible to light and heat damage...In nature, there is a considerable reduction in intensity for INDICA varieties....Sativa varieties in nature do not see the variation in lighting intensity, or number of hours of daylight for that matter....I for one do not grow pure landrace eqitorial sativa strains requiring 13+ weeks of flowering....many BRED variations flower faster but were talking natural conditions...Indicas see FAST reduction on # of hours of daylight, with the sun MUCH LOWER in the sky...This is why strong indica dom plants flower fast...Cold is coming and reproduction is expedited before they die from a strong frost...So, They ARE getting much weaker intensity late in flower....Ever notice how frosty buds are just down from the main colas...Secondary branching that gets a little shading and less intensity....Modern lighting is INTENSE and WILL evaporate resins high up and facing strong light....This is typically not an issue if your running lower wattage lights....BUT CERTAINLY is a concern running 1000w HID lights and some LEDs (some are much stronger than a few yrs ago)....I've run 1000w HIDs for 4 decades now, and have watched this phenomenon a LONG TIME....intense lighing is critical for bud mass, but once your bud mass is done, late trich production, and ripening is a delicate process....They LOVE TO SWELL AND BASK IN A MUCH LESS INTENSE LIGHT....You spend months getting to this point, so you'd hate to evap your efforts.....I'm not a botanist, but been growing since 1979....less is better the last 10-14 days...You certainly cant lose yield, cause thats already locked in at that point....It time to grow and care for your trichs at this point....YT
Too much misinformation and information from people that should stay off th we groups.. but this guy knows what he is talking about.