UV and mid-late bloom

Malum pls shut up and dont talk about thinks you dont know. You talk a lot of bullshit. I used 2 uvb lamps.

I would agree. Uv if used wrong can be harmful to both you and your plants. Along with mass defoliation. Never remove more then 30% of matured fan leafs ones with 5 or more fingers these are essential for plant photosynthesis. These fan leafs take energy from light. absorbed through them, turning light energy into sugars that then are transfered throughout the plant using that energy to pull nutrients from the root system that then get stored in fan leafs. The plant then begins to take those neutreints and use them for bud production. This is also why plants have senescence (fall colors) basically. It's the plant starting to use all of its stored nutrients in last efforts to fully ripen itself.

My best advice, google search for the amount of UVA from the sun going through the atmosphere by the end of September from subtropical zone of the Tropic of Cancer for an Indica and near the equator for a Sativa ….

Salam Greybeardbud! 👋 Welcome to the final stretch, Habibi! 🏁 You have stumbled into one of the most heavily debated topics in the growing world. Let's cut through the noise and look at this using Modern Engineering and photobiology so you can make the best choice for your canopy! 🛠️🔬 1. The UVA vs. UVB Trap: 💡 Most commercial LED fixtures (including the Adjust-A-Wings) use 390nm-400nm diodes for their "UV" channel. This is actually UVA (or just deep violet). While UVA isn't necessarily bad, it does not trigger the famous UVR8 receptor in the plant. The UVR8 receptor is what tells the plant to build extra trichomes as "sunscreen," and it only responds to true UVB (280-315nm). To get real UVB, you usually need specialized fluorescent reptile bulbs, not standard LED diodes. 2. The Energy Budget (Stress): 🔋 As @Ultraviolet brilliantly pointed out, turning on UVA right now forces the plant to spend its limited energy on photoprotection (defending itself from the light) rather than swelling the buds. Since your plants have already been heavily defoliated (meaning their "solar panels" are reduced) and have gone through some serious stress, adding UV light now is like asking an exhausted marathon runner to carry a heavy backpack. 🎒 3. The Degradation Risk: 📉 In Week 6 and beyond, your main goal is preserving the THC and Terpenes you have already grown. UV light and excess heat physically degrade THC into CBN (the sleepy, couch-lock cannabinoid) and evaporate your volatile terpenes. The Verdict: Keep that UV channel OFF! 🛑 Let the plants finish their final swell in peace. Drop your temperatures slightly to preserve the oils, keep your standard bloom lighting, and get ready for harvest. Happy Growing! 💚

Iv got a light with UV and far red in my diary which I did use for the last 3hrs during the last 2wks of flower but the latest studies show they don't do anything.Like you say theres conflicting stories besides here,so many people here talk so much shit.People are still going on about not defoliating when I told them all last year.They just make it up as they go along as theres not a single study that says you need all the leaves.Iv been at this for well over 30yrs and Iv got clowns that have a few grows under their belt telling me whats what without proof.The majority of breeders recommend it.If your plants have hermied then use a better breeder ass mine never have.My first garden grow was in 88 and I started hydro indoors in 93 and never had the problem.Its down to bad breeding.Use European breeders.Its rare I stray from Green House Seeds or Barneys farm nowadays as they have everything a man could ever want.Tripple check all your info you got on here.

@TruTraTri oh right yeah just viewed over that.. See what you mean.. The parachute principle, did they blow off?

@Green_claws , if you look at the video. With a turbine running, you have to defoliate, otherwise the plants will get flipped over. Anyway, if you are running around in your growing space filming with lights turned on. Don't ever use any UV. Hope you use proper eye protection at all times.

I have to agree to @Organoman with the defoliation, I like to defoliate I know it helps if the correct leaves are removed but we're have all your leaves gone man wow, this is we're defoliation proves the point not too.. Don't bother with the uv.. Get everything else in check will increase production.. Also @Ultraviolet@Ultraviolet definitely makes a good point, I'm listening lol ✌️ 💚

Good luck with that, UV on those things is 395nm, at best it might add like half a percent of flavor and smell. Gimmicky and massively oversold. Similar to the misleading "organic" wording often used. UVR8 is the receptor responsible for UVB trichome response with 95% of that happeing at peak 280-290nm. 290-300nm is 10x less effective than 280-290nm. UVA' shares its photoreceptor with blue and is called cryptochrome, uva causes alot of ROS and using too much can be detrimental similar to having too high levels of blue. UVB can be very dangerous when used or handled improperly, with the very real potential of messing up your DNA. Its simply not recommended for anyone who treats their grow with anything but utmost respect and can maintain high levels of discipline not to screw yourself. Plants have mechanism that can be utilized to repair nearly all the damage done to them. Humans do not. This doesn't mean UV is evil or bad, in correct doses it can be highly beneficial. Sadly there will be little to no affect from your current UV.

Don't waste your money. You would have obtained far better results had you not removed nearly all of the energy producing leaves! 8 out of 10 plants hermied..............could there be a link to the massive defoliation you did?