Kentuckiana Outdoor - Sick Plants

Pics are Florida OG, also growing Blue Dream, Matanuska Tundra and C99. All showing same symptoms but the OG is the worst. The yellowing and spots start at the bottom of the plant and is working its way up and through the center.
Most of there lives I fed with FF grow big and Cal Mag PH to 6.5 ish, but I got tired with all the lockout issues and flushing I was having with my indoor crop so I switched to Jacks Classic All Purpose and Blossom Booster for flower.
My last 3 watering's I've used the Jacks Classic All Purpose, 1 tsp per gal, plus cal mag 1 tsp per gal, PH 6.5 ppm around 500. We also have got a ton of rain the last couple weeks to supplement the watering. I spray PureCrop1 and Monterey Bt once a week too. (I put the screen on top of it a little drunk so it got kinda smashed. I think it will be ok, I've done worse.)
I'm lost what the exact issue is, I'm guessing lockout. Any ideas are greatly appreciated! Maybe just give straight water for a while? I think they're about done stretching so maybe start with flower nutes? I can also take pics of the other plants if interested. Thanks!

Seem to be starving to me.

Bump

Can you pluck off a couple of the healthier but sick fan leaves and bring them inside, put them on a white background with decent light and take a couple pics that way...

The necrotic growth on the bottom looks too far gone, and could be caused by a couple things.. If you can get me a couple decent pics of some green fan leaves that are started to show signs of damage from around the plant. Ill try figuring it out for you. Would like to see the beginning phases of the damage, but I cant really tell from the pics especially when parts are in shadow.


Also, can you tell me if you've noticed any slow down in growth of new leaves?
Do you notice any of the greener (but getting worse) leaves starting to look like this before progressing to the nasty necrotic yellow w/black spots?





Last thing.. Hows the rain been this year and recently? When did you first notice this? If its leaf septoria / leaf spot then its a bacterial disease usually found warm damp weather so usually after rains if its nice.. Im curious though, That doesnt look like a fence because its off the ground a bit, Is that just an enclosure for the plant or something? If so, hows the air flow in there?


EDIT: Just reread your post and noticed you mentioned tons of rain recently, in that case.. Whats the temps been getting to for dailyhighs last few weeks in your area?

New growth definitely slowed down, but the last few days they seem to have perked up. The disease or whatever is still spreading up the OG but not as bad. The top growth on all the plants looks about perfect to my eye.
It seems to have started about 2 weeks ago, right around when they started stretching. I lose track of time any more with all the rona stuff going on.
The weather was pretty warm, upper 80's low 90's, very humid. Then all the rain brought a cold front behind it and it went down to 70's during the day and a few nights in the 60's. Its starting to warm back up to the 80's again now. It hasn't been a very wet summer at all, im not sure if it was drought territory but dry. I have a pond that I get all my water from. Every time I've checked the PH of the pond its around 6.5. I always PH the feed water to 6.5.
They are in a 20×20 fence, on the side of a hill in a low spot, so about half the fence sits a foot or so off the ground. Air flow isn't ideal, i wish I didn't have to build a pen but the neighbor farms a little further up the hill and gets a nice birds eye view of half my property when he's in the sprayer. Then the neighbor a few farms over started helicopter spraying this year and the helicopter pilot flies back and forth over my property like he's back in Afghanistan. Pretty cool to watch, but kind of defeats the purpose of the fence.
But since the fence sits up off the ground the wind blows underneath and there is about always a breeze. I have noticed that there's always a pretty good morning dew no matter how dry it is, i guess since its down in a low spot.
There's more thunderstorms and downpours in the forecast for the next few days so we'll see! Thanks again for the help!

Very cool setup you got there, I like that alot actually.

Unfortunately those pictures are further confirming yellow leaf spot / leaf septoria for me. I believe they're characterized by those white circle spots which later become the necrotic black spots, and from other posts on the old icmag site a user had mentioned the leaves would get like that within 2-3 weeks, which fits your timeline, as well as your weather.

I've never personally had it, but If I were you, Id do a little more research (probably any pest/bacterial or fungal disease/deficiencies/excess-toxicity that would cause that yellowing and black spots. search terms being necrosis for the dead parts of leaves, you can also narrow down by top/bottom of plant new/old growth... direction of yellowing tip to stem or vice versa... That sort of thing.. If you also agree with my diagnosis then look into treatments for it but I believe bacterial and fungal diseases are some of the worst things to get while growing, I'd much rather deal with pests or deficiencies any day of the week.

Sorry I cant be of more help, Thanks for getting the pictures so quickly. Good luck and dont hesitate to ask if you have any questions. Cheers.

dunphy said:

Can you pluck off a couple of the healthier but sick fan leaves and bring them inside, put them on a white background with decent light and take a couple pics that way...

The necrotic growth on the bottom looks too far gone, and could be caused by a couple things.. If you can get me a couple decent pics of some green fan leaves that are started to show signs of damage from around the plant. Ill try figuring it out for you. Would like to see the beginning phases of the damage, but I cant really tell from the pics especially when parts are in shadow.


Also, can you tell me if you've noticed any slow down in growth of new leaves?
Do you notice any of the greener (but getting worse) leaves starting to look like this before progressing to the nasty necrotic yellow w/black spots?
View attachment 4648410




Last thing.. Hows the rain been this year and recently? When did you first notice this? If its leaf septoria / leaf spot then its a bacterial disease usually found warm damp weather so usually after rains if its nice.. Im curious though, That doesnt look like a fence because its off the ground a bit, Is that just an enclosure for the plant or something? If so, hows the air flow in there?


EDIT: Just reread your post and noticed you mentioned tons of rain recently, in that case.. Whats the temps been getting to for dailyhighs last few weeks in your area?

Click to expand...

I see where you are going But what he has is not black spot aka leaf spot. Looks very hungry to me Ferts got flushed out with all the rain.

thumper60 said:

I see where you are going But what he has is not black spot aka leaf spot. Looks very hungry to me Ferts got flushed out with all the rain.

Click to expand...

Could be, which nute would you say would be the culprit though? I couldnt find anything that fit any symptoms completely.
But of course could be wrong, without rereading the post he was in mostly coco right? Ah well, Like I had told him, in the end hes got to agree or disagree and decide what to do if anything. Appreciate the comment T. Cheers

EDIT* mustve been another post with the coco, either way..

To OP... A general compost tea / earth worm tea probably wouldnt hurt in either case... Itd most likely help any deficiencies if thumper is correct, and introduce good bacteria hopefully to fight off any fungal/bacteria issues you're having.

I dont know anything about your jacks fert but I dont believe the teas will do any damage no matter whats in the jacks ferts