Mothers and all plants dropping leaves

Titikshu

Active Member
Grow environment:
Oopen basement.
Lights: one 1,000w MH, dimmed to 400-600, one CMH light, 1 rack with Fluence RazrX and a 4-bulb T5.
Veg and propogation only, no flower (currently).

Humidity controller helps a bit but the dehumidifier and humidifiers are small and the space isn't sealed. Humidity ranges 50-66%.

Temperature controller hooked up to exhaust fan only. Temp ranges 73-81°

Problem:
See attached leaf photo (below). This is from my mother plants. Every day more and more leaves look like this and eventually shrivel and fall. Lately, however, even more health looking leaves are just dropping off.

They were all smaller plants and in 3 gallon fabric pots, Pro-Mix. They've been ok health, but this started happening a couple months ago. I was using general hydroponics micro and bloom + kelp + enzymes, supplementing a bit of grow formula as needed but generally keeping nutrients balanced for mother plant maintenance, slow growth. I'm taking cuts every 2 weeks (10-20 cuts).

I flushed plants until runoff PPM was around 400. Runoff pH was in range. I switched to Hydrodynamics Mother Plant A&B formula. The plants looked ok for a couple weeks, but still had some leaf issues.
I got rid of a couple mother plants and uppotted the remaining ones to 5 gallon fabric containers with Detroit Nutrient Company soil (and some Coco Loco). I've just watered twice since transplant last week and the leaves are still dropping like crazy.

When healthy, green leaves are falling off. I'm planning on using half strength nutrient the next time I water, but I'm not hopeful. My new growth looks fine and I'll get decent clones, but I'm not hopeful past that.

I switched from pro-mix to a Nutrient rich soil to try and add some diversity and hopefully remove some human error from the equation... Maybe too little too late?

... Ideally, all my plants would just be in an organic soil and I could top dress as needed, but I obviously don't have the nutrients or plant knowledge for that yet. I've run plants all the way through flower like this with minimal issues, but keeping mothers long term required a bit more finesse...

Anyone out there keep mothers in organics without liquid nutrients?

Anyone out there have a nice maintenance schedule with liquid organics to keep them long term?
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Titikshu

Active Member
Bump... More leaves gone...

Anyone user AzoSol before? I watered that in to all plants... I've also bombed with Pyrethrium (damn russet mites...) and been using Dr. Zymes, Venerate, Plant Therapy, Soap & Water, and one application of Organocide Plant Doctor all over the past month for IPM.
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Dontjudgeme

Well-Known Member
I keep my moms alive strictly with organic amendments, silica blast and Calmag. Top dress every 30 days or so, always ph at 6.5-7. I use roots organics terp tea “ grow “. Rh 65%, temp 80. There’s occasional yellowing, but nothing too severe. I use LEDS, so I’m not sure if the lights you are using could be a contributing factor or not. I’ve used MH during veg before and the plants loved it in veg, but MH is a energy hog, so I had to get rid of them. You don’t seem to be doing anything wrong. Why not take a few cuts and grow them to new moms, maybe the ones you have aren’t happy. I only keep my moms for about 6 months, a year at the most, then grow new moms from her cuts and start the whole process over. I’m in pro mix hp ( mycorrhizae ).
 

Titikshu

Active Member
I keep my moms alive strictly with organic amendments, silica blast and Calmag. Top dress every 30 days or so, always ph at 6.5-7. I use roots organics terp tea “ grow “. Rh 65%, temp 80. There’s occasional yellowing, but nothing too severe. I use LEDS, so I’m not sure if the lights you are using could be a contributing factor or not. I’ve used MH during veg before and the plants loved it in veg, but MH is a energy hog, so I had to get rid of them. You don’t seem to be doing anything wrong. Why not take a few cuts and grow them to new moms, maybe the ones you have aren’t happy. I only keep my moms for about 6 months, a year at the most, then grow new moms from her cuts and start the whole process over. I’m in pro mix hp ( mycorrhizae ).
You're just using pro-mix, top dressed once every 30 days with the terp tea and a bit of calmag with silica?
 

Dontjudgeme

Well-Known Member
You're just using pro-mix, top dressed once every 30 days with the terp tea and a bit of calmag with silica?
Yep. Keeping a plant in veg is a lot easier than flowering it, to me at least. I have a tent dedicated to my moms, one for my my clones and the other for flowering. I do it organically because the soil last longer. I tried it once with liquid Nutes and the mom
didn’t last long.
 

Titikshu

Active Member
Interesting
Yep. Keeping a plant in veg is a lot easier than flowering it, to me at least. I have a tent dedicated to my moms, one for my my clones and the other for flowering. I do it organically because the soil last longer. I tried it once with liquid Nutes and the mom
didn’t last long.
Interesting. Well, to save these moms and make the transition, I think I'll completely flush these today since it looks like it's something caused by nutrient buildup or a lockout caused by something else. This sucks since I just transplanted a week ago and I transplanted into some nice organic soil, but the plants are not looking happier, at all) and then next watering I'll throw on some terp tea bloom (that's what I have on hand) and some worm castings and see how that does for a while. I guess I'll need to take a cut and regrow these mother plants. . . it took me a few months to get them shaped and bushy... Oh well, try and try again, right?
 

Dontjudgeme

Well-Known Member
Interesting

Interesting. Well, to save these moms and make the transition, I think I'll completely flush these today since it looks like it's something caused by nutrient buildup or a lockout caused by something else. This sucks since I just transplanted a week ago and I transplanted into some nice organic soil, but the plants are not looking happier, at all) and then next watering I'll throw on some terp tea bloom (that's what I have on hand) and some worm castings and see how that does for a while. I guess I'll need to take a cut and regrow these mother plants. . . it took me a few months to get them shaped and bushy... Oh well, try and try again, right?
Kind in mind that the terp tea “ bloom “ has an NPK ratio not favorable to vegging. Might wanna stick with the “ grow “.
 
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