Rust colored spots

[Gauge Steel]

Problem: Rust colored spots

Medium/grow method: Hempy, Pearlite with a Rapid rooter starter

Feed: and supplements used: 5 Ml Green RX Grow A&B, 4ML Green RX Energy (Kelp Humic Acid), 4 ml Botanicare CalMag+. Z7 .5ml

water source: Tap @ 180ppm

Strain/age: C99 4weeks old

light used: LED Blurple China. 96 watts at the wall

Climate: Controlled with intake and exhaust HVAC controlled. No hotter than 80F No Cooler than 70

Additional info: This is appearing on the older growth towards the bottom of the plant. Pics were taken with a USB microscope Front and back of the same leaf.
Me thinks its Cal def. but if i knew for sure i wouldn't be here. First run with passive hydro. New growth seems to be fine.

Thanks.

 

[Waira]

:smoking: I hope you found this mate!
...So, can you get me a whole plant pic, and one of the leaves? I'm thinking this isn't any sort of defc. issue, not with that yellowed zone around the necrotic spots,.. looks fungal/bacterial,.. is it high RH in that area? frequently splashed/wet? let's see what the pics show, but I'm pretty sure this isn't Ca defc.,... do you have pure neem oil, or a food safe fungicide?

 

[Gauge Steel]

Waira. Thanks for the quick reply. The necrosis on the leaves have actually for the most part gone away. I have never seen this before. Usually discoloration of the leaves stays with the plant till the leaves die or the plant is harvested. Weird huh. I cannot get pics of Yahoo mail right now and i cannot figure out TapTalk to save my soul. When I can i will post a couple pics to show you what i can see. Plant looks a ton better and i thank you for your service to our AFN Community.

 

[Waira]

Whaaaa?? Some of those brown and yellow spots cleared up? I'da lost that bet! ....post when you can mate, and thank you for the Kudos too!

 

[Gauge Steel]

Again thanks. Baffles me as well.

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[Gauge Steel]

Back of affected leaves show very little sign anymore. The front of the leaves have the only a hi t that anything was amiss.

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[Waira]

whatever it was, she beat it back! I'm stumped man, dead tissue is dead tissue, and the brown spots are dead tissue,... zombie plant??

 

[Gauge Steel]

whatever it was, she beat it back! I'm stumped man, dead tissue is dead tissue, and the brown spots are dead tissue,... zombie plant??

Here is an observation or i guess a Hypothesis. If you see this again you can think of me. This morning i could'nt believe it. They were back! What have i done differently in the last 24 - 36 hours since they healed? i was doing the same thing as before, Moving it back and forth between COB and Blurple Led's I am leaving her in the Blurple as thats where she was residing when she got to looking better. I will drop you a line when i see some results.

 

[Waira]

that's a big WTF mate! I'm not sure what dots connect the lights to this,... well, try some neem oil foliar and see if that locks it down, one way or another,.. using a wetting agent vastly improves the coating action, and help emulsify the need oil better! I like Coco-Wet for this, inexpensive and top-shelf quality! :smoking:

 

[Gauge Steel]

Thanks again.