What would affect only new growth to start dying?

[jimoffy]

Ahhhhh WTF What does it mean if newer growth only is affected, leaves turning yellow from the outside in and crispy, and the newest little leaves coming out with yellow dry twisted tips??

Seems to have happened to my first plant, now looks like my plant next to it is starting to get the same thing? They’re huge plants grown in 100Litre pots, outdoors in a balcony in coco coir and potting mix.

They’re 7 months into veg and are due to flower in the next couple weeks. I have 2 other plants which are fine, but they’re both smaller than the affected 2..

Also some leaves cupping up. Thanks !

 

[SmokyLungs]

Cal mag or from spraying too much during the day are u spraying neem?

 

[Dr. Who]

Plant isn't exactly expressing being stable.

So what are they in soil/media wise?
What do you feed and how much?
Water source? pH of?
ANY supplementing? What?
pH of in-going anything in liquid form?

If this way has been done before and been successful.

Could be you have a progressing Broad or Russet mite problem.

 

[jimoffy]

Plant isn't exactly expressing being stable.

So what are they in soil/media wise?
What do you feed and how much?
Water source? pH of?
ANY supplementing? What?
pH of in-going anything in liquid form?

If this way has been done before and been successful.

Could be you have a progressing Broad or Russet mite problem.

Done it last year, 0 problems. Same food, same soil, only difference is I use black pots this time instead of clear. I neem oil then all, other 2 are fine. Coco coir and potting mix

 

[ShLUbY]

definitely seeing some bug infestation problems.

generally new growth is affected by immobile elements in plant nutrition.

how often are you watering? kinda looks like root issues to me....

 

[jimoffy]

definitely seeing some bug infestation problems.

generally new growth is affected by immobile elements in plant nutrition.

how often are you watering? kinda looks like root issues to me....

I was watering every 1 or 2 days no problems whatsoever. It’s coco. Now I’m watering every 3 days cause it’s humid and they aren’t drinking as much. It’s transitionng to flower and I think stretch is starting too. If that makes a difference

 

[jimoffy]

I was watering every 1 or 2 days no problems whatsoever. It’s coco. Now I’m watering every 3 days cause it’s humid and they aren’t drinking as much. It’s transitionng to flower and I think stretch is starting too. If that makes a difference

I vegged for 7 months no problems . I had spider mites but I sprayed for them already

 

[jimoffy]

definitely seeing some bug infestation problems.

generally new growth is affected by immobile elements in plant nutrition.

how often are you watering? kinda looks like root issues to me....

And also, could it be rootbound? I can’t imagone root rot.. it’s coco and I would let it dry before watering this isnt my first time.... it’s just weird. If it’s root bound, I can easily attatch another 50l pot to the side of the pots

 

[jimoffy]

And it happened almost overnight. Was a warm (not too hot ) but very humid 2 weeks when it started. Just Cooled down today

definitely seeing some bug infestation problems.

generally new growth is affected by immobile elements in plant nutrition.

how often are you watering? kinda looks like root issues to me....

f wh

 

[ShLUbY]

And also, could it be rootbound? I can’t imagone root rot.. it’s coco and I would let it dry before watering this isnt my first time.... it’s just weird. If it’s root bound, I can easily attatch another 50l pot to the side of the pots

it may not necessarily be rot (but very well could be), but something else causing issues like root nematodes or some other root dwelling insects. i mean, it appears that your whole plant is slightly affected, and now the newest growth being the most affected. i see you have it all trellised... i'd be wanting to inspect the roots first, looking at those symptoms.

 

[jimoffy]

it may not necessarily be rot (but very well could be), but something else causing issues like root nematodes or some other root dwelling insects. i mean, it appears that your whole plant is slightly affected, and now the newest growth being the most affected. i see you have it all trellised... i'd be wanting to inspect the roots first, looking at those symptoms.

The plant and soil weighs more than I do I have no idea how to get a plant in a net out of the actual pot

 

[ShLUbY]

The plant and soil weighs more than I do I have no idea how to get a plant in a net out of the actual pot

yeah i understand your problem man. the other issue could be medium pH, and lockout has set in, causing all your new growth to look like that. but because your other plants look fine, and all the variables are indeed the same, i would still suspect root issues.

 

[Dr. Who]

Done it last year, 0 problems. Same food, same soil, only difference is I use black pots this time instead of clear. I neem oil then all, other 2 are fine. Coco coir and potting mix

I suggest you run a treatment of FORBID 4F. You have a Broad or Russet (mite) problem. It's beyond just starting too.

You can get small, affordable amounts of FORBID on Ebay.

8 drops per gallon of water. Light misting on the tops of the leaves, etc. For these suckers, hit them again 7 days later.

Other solution: Burn them and sanitize the whole op. Everything in it, and every surface of anything in it. Floor to ceiling, walls, and undersides of everything. Get new soil, or media.

PS You have to do the sanitize anyway! Even if you treat the plants....


NOT root bound, and not root rot.

Other thing it could be, Root Aphids! (looks say so, and so for the B or R mites)

Use an Imid based insecticide (Merit 75) as a root drench - follow the instructions to do that.

Required you do the sanitize here too.

The way to find if it's NOT root aphids - Hang a yellow sticky card at pot surface level.

Get anything that looks like under size gnat fliers, you got root aphids.

NO under size fliers on the card. It's the mites.

 

[jimoffy]

I suggest you run a treatment of FORBID 4F. You have a Broad or Russet (mite) problem. It's beyond just starting too.

You can get small, affordable amounts of FORBID on Ebay.

8 drops per gallon of water. Light misting on the tops of the leaves, etc. For these suckers, hit them again 7 days later.

Other solution: Burn them and sanitize the whole op. Everything in it, and every surface of anything in it. Floor to ceiling, walls, and undersides of everything. Get new soil, or media.

PS You have to do the sanitize anyway! Even if you treat the plants....


NOT root bound, and not root rot.

Other thing it could be, Root Aphids! (looks say so, and so for the B or R mites)

Use an Imid based insecticide (Merit 75) as a root drench - follow the instructions to do that.

Required you do the sanitize here too.

The way to find if it's NOT root aphids - Hang a yellow sticky card at pot surface level.

Get anything that looks like under size gnat fliers, you got root aphids.

NO under size fliers on the card. It's the mites.

Okay. Thing is I know I have spider mites, I sprayed neem oil on all plants 3 days ago and seems like they’re all dead. If it were broad or russel mites, could I see them? And will neem oil help ?

 

[Dr. Who]

Broad and Russet mites are insanely smaller the regular mites.
About the size of the diameter of the leg of a white fly!
You can not "see" them with even a 60x scope...
Neem is, not effective on Russet and Broad mites. It will have 0 effect on root aphids...

For Broad or Russet mites you need to treat with FORBID 4F or AVID. Thing with AVID is it's very toxic to humans.
Forbid is not so much, at all.

Get the yellow sticky card and check for the Root Aphids.
I would treat my plants for the mites with FORBID anyway.

good luck