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:sad: Hopefully it doesn't progress. I never made heads or tails of it, I just surrendered, bleached all my grow equipment, lysolled all my fans, swept, mopped, cried inside, and started a new lot. I feel like I've seen i once or twice in subsequent grows but it never spread past a leaf. :confused:

Does anyone know if you can buy seeds or clones of really high THCV strains, yet? I don't mean something like, "try land races from X or Y, the can have THCV in them," but like actual confimed clones or stabilized seeds? Since most people can still only grow medically in the us I'm surprised...

I hope it goes well and I hope your plants don't go down the same path as mine did. The TMV argument is a strawman, though. In my thread we talked about TMV but tobacco and cannabis aren't even in the same order so it would be strange if a virus would work on both of them. That said, there...

Revegging can take around 3-4 weeks in my experience. SupaStona, If you keep the root system alive by keeping it moist but not wet during this time, then when the plant does start vegging again you start with the infrastructure of an entire plant. Plus you've already basically topped it so it...

Wait, is it the spores that we're worried about or the toxins that the mold produced? If it were just a matter of spores, putting the bud in the oven at 250 for a half hour would be enough. But I think it's the toxins that mold produces that can make people feel sick even if they don't get a...

Yes I have tried this and it worked very well. I used a ring that had air stone nozzles embedded and connected air stones to it. I put that in the bottom of a big red vines jug (clear plastic, about 2 gallons?). I used a sterilized mixture of coco, home depot compost, and worm castings, which I...

I had a 10 times magnifying glass and could see the tiny hairs on the underside of the leaf, but I remember not being convinced that mites were the issue because the few mites I did see were easily visible with a magnifying glass, but on careful examination of the plants I didn't see more than a...

I think I have some bad news, man. Check this thread out. You look like you've got the first stages of what I had years ago. Look up broad mites and see if that fits. Otherwise, it could be a virus. There are pics in the thread that look a lot like yours...

So it's been 5 years. I ended up throwing the bastards out and never got to the bottom of shit. I don't think it was mites, though.

Hey man, do you know what your temps get to at night? Are you on a 24:0 light cycle? I used to have those leaves and struggled with it for awhile. They would appear on all the plants in my grow even if they were different strains, and at my buddy's house, too. We figured out it was low night...

I'm surprised no one got to answering this. If you herm a plant to get pollen and then use that pollen on the same plant, and if the plant accepts the pollen and makes seeds, it will be very close but not identical to the mother. ****SKIP TO THE CONCLUSION TO AVOID A TANGENT**** Why is this...

Hey PhenoMenal, over the past year I have tried TLC off and on but I have a simple problem. My cannabinoids bleed. I have extracted with acetone, ethyl acetate, hexane - you name it. And although some eluents have worked better than others, even with chloroform my plates produced a line of large...

I dissolved silver bullion in citric acid. It's one of the few safe acids that will dissolve silver to concentrations high enough to flip plants. Sprayed one branch one time during the flip and a month later it was covered in pollen sacks. I didn't use the pollen so I don't know if it was...

Hi there. I recently got some flower tested at a local lab (I live in Washington so we have cannabis testing labs around) and it came back with a CBD to THC ratio of 9:5. I was under the impression that the ratios should be 1:~0 or 1:1 or ~0:1. I started this two years ago with an ACDC and a...

Hmmmm so I used the photometer on my phone, which uses the camera and an app called physics toolbox, and got a reading of 30000 lux instead of 60000. Does that sound more reasonable? I noticed that my buddy's meter, once it reached about 30000, didn't follow the inverse square law when halving...

I won't have access to the meter until next weekend. Let's assume the reading is accurate. Is the lux/7.5 figure still agreed to be a good rule of thumb? (Based on the cri). If so I'm all set, thanks all!

Hmmmm. Thank you for your input, this is giving me a raging clue. Yes, let's assume the light is just 440 and 660, with 75% 660 and 25% 440. At the canopy the reading is 60000 lux evenly spread across the entire canopy (this is where I'm at now with my tent). I can take that lux over 6.75 to...

If I put my light meter under a purple led it will give me a lux reading. It won't be the true lux under the definition of lux, but it will give me a reading. What reading should I shoot for for veg, and what for flower? All other considerations are irrelevent. , thanks, AB

Thank you, you are my randomhero8913

I know I should buy a par meter if I want to measure led intensity, and I know if I want to get fancy about it I should add a fudge factor to my reading that accounts for the differences in electronvolts per photon at different frequencies. But please, I just want to know what range of lux is...