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Hey everyone, Ok, so lately I've been wondering if VPD drives pest/fungal pressure and or has any effect on the drying/curing process. Intuitively, I would assume it has a larger effect on drying and curing than pests and fungus but assumptions are the mother of all F*** ups. I have been...

Hey Guys, Just pulled down some purple punch from barneys and she is nice and chunky. Post some of the thickest colas you guys have grown! I know you all got some that can put me to shame ;).

Hey guys, Was wondering if anyone has grown or knows anyone who has grown 30%> THC strains and what breeders they got them from?

Hey Guys, I am trying to begin my research for Strains and Genetic Companies for commercial production. I was wondering if anyone knew how larger companies went about securing seeds or if there are any favoured genetic companies used by commercial growers. If anyone also has tried any very...

Hey guys! This is to all the people that have grown with PGR's or who know people personally who have before. I am just curious, what exactly do PGR's do and how much better or worse does it make your weed? Before and after pics would be sick if you all have any. Not planning on using it -...

Hey guys, Have a tent running with 8 Purple Punch's from Barney's Farm (all same genetics). They're grown in coco with synthetic nutrients and compost teas once per week. They get watered twice per day by hand and the tent typically runs at around 28C and >65% RH. Runoff PPM is 800 with tap...

Hey Guys, So I recently undertook the adventure of attempting to make my own vape cartridges from scratch. The most difficult part of my journey, winterization, was just completed but I am a bit worried about my results. A bit of back story, my idea to make the vape carts were as follows: 1...

Hey guys, I'm guessing there's a thread already for this but I couldn't find it. I'm looking for scientific studies stating percent average increase in yields at different VPD's. For example, if running VPD 0.3 kPa higher than ideal decreasing growth by 10% or 2%.

Hey guys, Have 8 3 gallon plants in coco. Week 4 -5 of flower, synthetic nutes, neem spray once a week for ipm. Had a bit of a fungus gnat problem so I did the standard procedure. Dried out the medium, flushed with hydrogen peroxide, sprayed neem, dried out the medium again, flushed again...

Hey guys, any guess on what this is? Plants are right next to my air intake and get a decent bit of wind. The majority of this are around that area in my tent. Let me know what you all think!

Hey Guys, I wanted to design a greenhouse facility for cannabis and I was wondering if you all knew whether or not Cannabis uptakes UV or IR light. I read in a few places that the plant can produce more THC to help protect it from UV light but this was backed up by no proof. I am also looking...

Hey Guys, I am a little stuck on what this nutrient issue might be. It is mostly appearing on upper growth which makes me think it is somewhat immobile/immobile but it also kind of looks like potassium deficiency and those symptoms do not coincide with each other. The strain is barneys farm...

Hey guys, First off, I think my title is hilarious. Second, I got some issues man (other than what my Gf says ;) ). I had a pretty bad gnat infestation a couple of days ago and I managed to get rid of most of them - drying soil and diatomaceous earth did it for the most part. Today I found a...

Hey everyone, So I had a go at the week 3 flower defoliation technique. For those of you who don't know this is where you remove every major fan leaf during week 3 of flower. Before you say I'm insane there are lots of people who use this method and achieve over 3+ lbs per light (look up...

Hey guys, Hope everyone is doing well. I am growing a couple of Barneys Farm strains right now : Blue Gelato 41, Dos si Dos 33, Purple Punch and Wedding Cake. Most of them Barneys claims to be about 24% THC. My question is how do genetics companies come up with these numbers? Now I am sure...

Hey guys, so my questions is what is more important Absolute Humidity or Relative Humidity? For those of you who don't know the difference here is a short breakdown. - Absolute Humidity is the total mass of water vapor per volume (typically expressed in grams per cubic meter) -...