whats with these girls?

[SweetHempSeeds]

The plants are outdoors under a shadeclothe, in 20 gallon hempy pots of perlite. Im feeding 0-8-16 lucas formula with gh flora series nutes. I use r/o water. The plants recieve 2-3 gallons of solution per day, in 2-3 waterings.

This problem is very recent, I noticed it this morning on original diesel, and og kush x blueberry.

I killed an apollo 13 girl 2 years ago outside, she was on the 8-16 diet, in half coco/perlite, and I never flushed her. The damage looks very similiar.

I have flushed all my plants this morning, pouring 3 gallons of water thru each pot, resulting in significant runoff. Im hoping this is just salt buildup. I dont have a ph meter.

The damage in the pics will look purple/very dark green before it goes to the color in the pics.

Thanks for your time!

 

[Verite]

Looks like too much of something getting locked in the older leaves and the sun is frying the locked up dark parts.

 

[bkind]

Hopefully the flush will help, I read that flushing with a very mild nutrient solution dissolves build ups better than plain water. Is it happening on the entire plant or just lower leaves?

 

[SweetHempSeeds]

I think you right, and I think ive found the combination of problems that caused the burn.

As you can see below, the plants are rather large. I had to put a 2' extension on the poles the shadeclothe is attached to, because the plants had grown up to it. This exposed some parts of the plants to direct sun (I use the shdeclothe for hail protection).

I am currently running a merlin unit to produce my water. I use around 60 gallons per day. I had gotten into, and then out of in the past few weeks, the habit of tasting the water to be able to know when to change the filters (when it tastes slightly like unfiltered water). this has worked well for me for years. I tasted it after I flushed the plants this morning, and sure enough I could taste minerals, filter change is overdue. I remedied that issue in short order and am now back to pumping clean water.

The verdict is shitty water and full sun.

I have changed the filters, flushed the plants again with 5 gallons of water each, and begun them back on a new batch of 8-16. I think I will increase the volume of my waterings to help flush the old ferts and replace them with new solution. I was getting a little bit of runoff from my 20 gallon buckets (maybe a qt), but think I should be having more.

Kind of sucks, its gonna cost me some yeild for sure. I just hope the plant doesnt die outright..... Im relieved that only 2 of the plants in my garden are showing burn, the others are a-ok.

Any other input is welcomed.

 

[SweetHempSeeds]

Hi there bkind, it is over the entirely of the original diesel, and just one big branch of the og x blueberry. The pic in my second post is of the original diesel, shes taking it real hard and showing lots of burn.

Thanks for your replies fellas!

 

[jonnybgood29]

test your ph. it actually looks like lockup from ph drift to me. especially in the mg, which points to the water like you thought. too high a ph does that every time. used to see it a lot where i used to live but not since i moved and have a different water source.

 

[Weedhound]

I second testing ph; both in and out. Also consider transplanting into a fresh quality soil.