What have I done? And how to undo?

[eljefeloco]

My poor babies are now sporting quite a few leaves like this. I'm in coco and using Dynagro Foliage Pro, pH'd to around 6.

When I first saw it I assumed it was some cal-mag issue (not sure why, but I did) and so mixed in some of that Espoma Garden Lime.

At around the same time (within a day or two), I did manually turn on my drip system, walk-off and forget about it until I'd run about 1/2 my reservoir through it

I'm thinking, a thorough flushing is in order, but I'm second guessing myself now.

Advice appreciated.

 

[VetSmoke85]

Unfortunately I'm not a coco guy but I'd have thought a good flush of the media and resetting would be a good place to start. I'll try to find an experienced coco grower on here to help you out.

 

[VetSmoke85]

@TheNuttyProfessor can you offer some advice on this one?

 

[NuttyProfessor]

it looks very like rust fungus , i have to go here to get may neck and back cracked at the chiropractic , ill read up when i get back as its pretty new to me, had it once but years ago on an outside plant

 

[NuttyProfessor]

how much of this plant or plants have this , have they loads of leaves as this will help if you need to remove any , get a sulfur based fungicide spray, calcium deficiency can look like this too so dont rule it out middle and lower growth is hit hardest , though its more spotty than this type of coverage so im leaning more to fungus ,

 

[NuttyProfessor]

calcium

 

[MickFoster]

Run a 1/4 strength nute solution through it, pH'd around 6.0.
Feed at least once per day (twice would be better) to run off.
Never plain water.

 

[bobrown14]

Looks like pH aint right to me. Check your pen make sure its accurate and re-calibrate.

 

[BeanTownFan420]

Or give up on coco and grow in healthy soil to avoid these issues in the future.

 

[eljefeloco]

A thorough flushing and re-calibration of my pH pen appears to have arrested the decline. Thanks for the insight guys I was panicking a bit. Never got this far into a grow without doing some mortal harm to the ladies.

BeanTownFan420 rest assured I'm an equal opportunities abuser. I've traumatised plants in soil equally well in the past,

 

[eljefeloco]

The ladies are back on track.