Goshenta
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If its not heat related my first thought would be something like russet mites. May wanna break out the scope and have a look.Hey all. Long time lurker, first time poster. Please go easy on me. If there's material explaining this issue at length I'm having troubles finding it. Would love to be pointed in the right direction.
The plant on the left is White Rhino and the plant on the right is Blueberry. I was under the impression White Rhino was a voracious eater.. Had this issue crop up in veg, one of the other White Rhinos stunted so badly I had to remove it from the rest before switching to flower. Gave it to a friend who has been taking excellent care of it.View attachment 1046080
I started seeing deformities in the leaves no more than a week ago and have actually been using this as a signal to back off on nutrients for everyone else before I see more problems elsewhere. I'm following the FloraTrio drain-to-waste chart, currently feeding everyone at 400ppm in soil. I was giving them all 700ppm as recommended for a while but then I'd start seeing it build up in the runoff so I backed off again. This is my third grow, really starting to dial in on a lot of my issues so any help here would be appreciated!
Lets see what else.. Ah, they were switched to flower on 10/04/2020, I use R.O. water with a starting ppm of 3, I keep my tent quite stable around 68 degrees Fahrenheit, 55-60% humidity at the moment, and since I switched to flower I've been following my chart as closely as possible with the exception of diluting my nutes in order to keep the soil ppm at the recommended range. Oh, and they were recently transplanted into their 5gal finishing pots.
Here's a closer image of the issue. Does not occur on the topmost foliage, so I'm inclined to say it's probably not light burn. It also does not appear to be happening on the other two strains currently growing in the tent. Also isn't very widespread on the plant yet, but it's definitely progressing.
View attachment 1046090
Any ideas? I was thinking I would give it plain R.O. water on the next feeding, 200 after that and back to 400 steady. Everyone else seems to be doing fine around that range for now.
yeah so its not going to be phos deficiency from cold temps. in my case it takes the strain at sub 40 degrees. But i believe they say baseline is 50 degrees for roots for onset. really is genetic dependentBasement temps, LED lighting (Mars Hydro TSW2000), good circulation. Lows of 65, highs of 72. Intentionally lowered from 68-75 to help purple the blueberry.
I'll pick up a scope and see what I find. There are some brown specks that I would've otherwise thought to be dirt... But I have no idea how it could've gotten on the leaves, so that makes me suspicious.
EDIT:
Might be a while before I get my hands on that scope.. In the meantime, I actually don't know much about pest control. Assuming it is russet mites or anything else, is there anything I can do to prevent this in the future, or at least control it?
You have a ppm meter yes?I don't think I'm following. You want me to add 1/8th a bottle of CalMag to my R.O.? You mean the system? It's only a 4 gallon tank. Not very convenient, I know... But it keeps me off tap water. I'll make sure to keep adding CalMag as a baseline when I flush from now on. I'll also up the dose of it from now on and let you know if that helps.
Fixed it sorry I meant 100-150ppm not mlI don't think I'm following. You want me to add 1/8th a bottle of CalMag to my R.O.? You mean the system? It's only a 4 gallon tank. Not very convenient, I know... But it keeps me off tap water. I'll make sure to keep adding CalMag as a baseline when I flush from now on. I'll also up the dose of it from now on and let you know if that helps.
Forget the ppm in the runoff you have a mix of organic soil and inorganic nutrients. Unless its like 2000 just ignore it for now. If this was soiless or coco I would say otherwise.BRILLIANT! I will do that on the very next feed for EVERYBODY. One final note, though.. I am using the entire nutrient line, not just Gro, Micro, Bloom and CalMag, but also everything else listed, as needed. Should I add ANY of those? I actually haven't been making any large adjustments, I've been trying to keep the soil at a very specific PPM. The runoff for White Rhino reading in-line with everyone else is exactly what I've been shooting for this entire time.
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