Spontaneously dying ladies; drooping, curling leaves and necrosis of entire branches

Hello friends. I would like to present these two girls for your assessment; one might be salvageable but she's going so fast I'm not sure she can recover even if I knew what action to take.

Sick ladies

The plant in the corner is from feminized seeds I bought from Green House Seed Co.; I didn't pay attention to which strain was which this time around, but I'm pretty sure she's the remaining 'Big Bang' seed since she has the same problem as last year's--specifically extreme sensitivity to powdery mildew. The other plant may well be one of her daughters.

I used penconazole when I first detected the PM infection this year and sprayed it 2-3 times, which seemed to help immensely at first--the new growth was in fact protected. Then it seems to have come back and I used neem and then hydrogen peroxide, but they are both still dying.

Do I have something else going on here? On the second, still potentially salvageable plant I don't see any PM. I'm looking at her as I type and her leaves are turning weak and wilting, curled under and curling under. She's going to die in the next couple of days, with whole branches spontaneously shriveling up and turning necrotic.

Thanks for any input; it would be good to have a handle on this to prevent it in the future.

Plant one, nearly dead now:







Plant 2, still alive but wilting and dying:

O_O


That's a huge bitch!

Sorry, I don't have any advice. holy palm tree though.

how big is your container?

@qupee, lol

@mad_librettist, hmm. I don't know. Almost the same size as the the one in the first picture. Here's a shot of them and some of the state of the garden today:

Container, lower right

Hmm. Some look thirsty and some look hungry, pretty small containers for those I think. There is some evidence of a wilt or rot of some sort and in that last pic it looks like its spreading from the brown plant to the other greener one? Airborn? Hard to say but I would cut off infected branches or remove dead/dry plants to start. Good luck, NS

P.s. Could it be lacking light or getting cold in the shadow?

to me those symptoms looks to be root rot, brown algae or something similar;

take that dead one out of its pot and examine the roots closely, see what they come up with; is there a funky smell from the roots; are they brown and slimy?

Those shoes are much much much too small for those big ladys. Its hurting them pretty much I think. You can easy trippel those sizes
# too few resitance against dry days
# too few nutes can be hold in their
# roots will damage each other cause the cant grow properly
# that all can lead to a sudden dead IMO

I had a hydro plant die like that and it was because of root rot, so I have to agree with everyone and say it has to do with the roots.

Transplant them into some big ass containers with fresh soil if you want to try and save one or maybe both.

Cheers guys. Both of these girls are in a better place now, but it seems you were on to something about the roots: I took some leaf samples (from all of the plants) to the grow shop and the guy said that my problem was too much water. It's been raining a lot here, and these plants that died were left outside while the rest of the garden comes in at night (thieves scaled the side of the building and on to my terrace several weeks ago to hack themselves some preflowering shake ๏̯͡๏﴿; nothing like moving 6-12 foot plants in and out every day). The soil was pretty soggy for about two weeks--it kept raining and they never got to dry out.

About the containers being too small: I've used these for three years and would think the plants kind of know how much growing room they have. Or not? When I've grown in smaller pots I've had smaller plants. And my friend has some fish...

Anyway, everybody else is still doing fine