Please help my babies!!

[Ratty696]

Hello there. My babies are now 76 days old 24 days into flowering. I am growing with suneshine 4 soil mix, in 4 gallon pots, I am using nutes from General hydroponics floramicro, floragrow and florabloom. I am feeding them once a week watering once as I have done from the start. Right now I am giving 6ml micro, 2.5ml grow, and 10ml of bloom. My ph is sitting at about 6.5 (using powder capsules to test. ph tester doesnt work anymore) strain is white widow. anything else you need to know just ask. the leaves on the bottom are turning yellow and brown and it is spreading up the plants. This started about 9 days ago, I gave them a flush 5 days ago and havent given anymore nutes since. I picked off all the dead leaves and it is still spreading. Can someone pleease tell me why???

This is what they looked like before I flushed.









And here they are today.

 

[Albert Hofmann]

they're starving...feed them

 

[jasondanzig]

some of those leaves look like they have mold or mildew on them( the black spots), i would cut those leaves of and a few of the extra fan leaves. also put a osculating fan in the room to.

I have never done soil, but it sounds like your ph might be to high(get another ph tester asap) and they are hungry for sure, FEED THEM.

 

[Ratty696]

the soil is still wet from the flush I did. Do I have to wait till it dries up to feed? Wont they be over watered? Or is that even gonna matter at this point? Thanx for the help.

 

[Guest]

I don't know if Stitch will agree being as how she kinda likes to let the leaves fall of their own accord, but...

Take every one of the affected leaves off and get em out of the grow room. If it isn't a fungus on them already, it's looking close. The plants aren't getting enough food right now to support them anyway.

Check the pH your feeding at. Double check the accuracy of your "powder capsule" method of checking the pH. You say in your post what you're feeding them but not in what concentration. ??mL/??.

If you're feeding them at the levels required for that strain, then I'd suspect a pH problem causing lockout. If your soil's in good shape (I know nothing about growing in soil, I use coco btw) and you don't have any root predators/diseases, then it pretty much has to be in what you're giving them and whether or not they like it or can digest it right now.

Peace

 

[Core]

are you shure the medium is 6.5? coz if you took runoof it might be off....to have accurrate ph you need to take some distilled water and put some soil in a cup... (not from topsoil..litlle dieper) and distilled water...let it sit for a few miutes and take readings....

but on my first guess it does't seem like she has a ph issue..looks more like a N and P def...but that is just a guess on my part

 

[MynameStitch]

His issue like core and mojo both has said is his pH, his mixture is mostly peat based and it has too much lime in it; in order to fix this problem you will need to add some acidic amendments to fix this issue....
I would get some test strips and test the pH, like mojo has stated those powder capsules are not very good, strips are better than those.

You can get them from pool supply stores or hardware stores.

Your plants are locking out nitrogen and P... check my guide for pH down for adding things to bring the soil pH down.

You will have to add and test and add and test to bring it to the level you want to, your pH needs to be in range of 5.5 to 6.3

Keep those leaves on there they will need whatever stored nutrients they have on there; the only way you want to remove those leaves is if they have mildew/mold and can transfer to the rest.....

 

[Kr@kEn]

Don't forget you can do a 1/4 dose foliar feed for a quick fix!

After the light has been on for a couple of hours, turn it off and foliar feed with a 1/4 dose or less of a good overall fertilizer.
Leave a small light on near the grow area for general lighting and so the plants don't think it's an early dark cycle. Let the plants completely dry and then power the light back on.
This can be repeated once every two weeks at most and is effective as long as your fertilizer is foliar safe at low strength which many are.

Foliar feeding can be a workaround to tough soil PH problems like this.