Hola hermanos, I’m seeing a problem that I’m sure is a simple one but it’s stumping me, even after all these decades. I’m growing a mix of sativa hybrids from Doc D and a few Oaxacan and Acapulco Gold and the MOX x AfPak showed it first about two weeks ago and lost most of its fans. The mexicans are just starting to show it on the bottom leaves and some grey spotting on the top leaves of one of the Oaxacan. Any help would ve very much appreciated.
-All 12 weeks from sprout, 6 weeks from 12/12 regular seeds.
5 gallon fabric pots
Happy frog soil and water for the first 4 weeks in one gallon pots, uppotted to 5 gallons with 4 gallons of Ocean Forest
ph around 7
Recharge microbes every other watering
Only ferts have been a top dressing of Dr. Earth Flower Girl in each plant at 1 week and 5 weeks of flowering
Foliar spray of Cal Mag 5 days ago as a hail mary
I don’t see any bugs and used the One And Done weekly up to week 4 of 12/12 and have predatory nematodes in the soil that seem to have kept the thrips at bay this run (knock on wood).
Looks like phosphorous or other micro nutrient deficiency like zinc or something. Your ph should be lower than 7. Additionally are those some kind of thrips damage on the plant? Looks like dark spots or something.
Thanks man, no thrips this time around (I’ve got sticky traps all over the tent and they’re clean) but it’s a combo of residue from the “One and done” spray and on the Oaxacan you can see the spots that look like Thrip damage, but are actually rusty, brown little spots. I’ve adjusted the ph down the last two waterings so I’ll keep an eye on them. The Flower Girl is 3-9-4 so I was hoping that would keep any PK at bay but maybe it is some micro nutrient or just some kind of lockout from the ph. I tried giving the MOX x AfPak a teaspoon of Fox Farms Bloom thinking it was a deficiency and that fried off the fans completely…
I had very similar issues last year mostly related to cal-mag defficiency.
Not sure about the Mexican Indica but the others def have spider mites and they might easily spread all around. I would suggest taking all infected leaves and wash the plants with some pressure water, clean everything and watch for them daily with a loupe to kill each of them manually cuz it seems you have buds forming and cannot spray anything to kill.
I’m thinking it’s a combo of the high PH locking out important stuff, along with potentially a Cal/Mag deficiency since those are the two variables for me this run. The plants were happy all through veg and I figured the microbes along with soil would be ok (clearly I was wrong), and same with Cal/Mag, I always used it because I’m a 1990s grower and CalMag everything so this run I figured I’d see if it was really necessary (again, I may have been totally wrong).
Thankfully no spider mites, I’ve had those in the past and they’re a nightmare but these are all bug free. I’ve seen issues like this when I had a bad case of fungus gnats that were eating the roots, but again the traps are clean and it seems like the predatory nematodes are doing a great job. I’m definitely keeping a close eye on them though and appreciate the CalMag suggestion
Yeah those are the waxy residue from a prior one and done spraying and you can see the rusty spots in the leaf veins. Thrips are usually all over the leaf and bleached white/coffee stain color ime. It’s definitely hard to see in this photo, but in person it’s more obvious
