Burn? Mildew? WTF???

[Bruce_Lee]

I'm growing Shiva
Week 9 (of 11)
Flushing with straight H20 (day 5 of 14 day flush / I flushed straight from the hose)
PH 6.1
PPM 550
No CO2
Ambient Temp: 62 night / 78 day
A/C

I'm getting these splotchy areas and wondering what they are? Anyone???

THOUGHTS ON POSSIBILITIES:

1) I flushed straight from the hose. Maybe the PH difference is causing this necrosis?

2) When I was doing my AN Over Drive - I added full strength amt. mix when I was topping off the res. (causing this necrosis//nute burn?)

3) I was trying to run C02; maybe C02 burn? Is it mildew?
I know about yellowing... (maybe that photo is misleading).

This is a better shot.

 

[Kal-El]

I get those when my plants are not getting enough food.
I would say it is from flushing, the plants is eating up its food storage in the leaves.

 

[Bruce_Lee]

...so it's nothing to worry about?

 

[cantstoplooking]

I wouldn't sweat it at all ...... you'll be fine

 

[h^2 O]

leaves are supposed to yellow in towards the end. Unless you pump it with steroids like most of the hydro weirdos

 

[Bruce_Lee]

I know about yellowing... (maybe that photo is misleading).

This is a better shot.

 

[cantstoplooking]

picture didn't show up.. once again I really dont think you have anything to worry about, you have what 8-9 days of flushing left till your ready to chop em down? You'll be fine, it looks like you might have had slight nute burn at one point in time.
enjoy your harvest and post up some dried pics for us

 

[phreakerrot]

what i see is overfertilization. your leaves are far too shiny and curved like a claw, if you're in the last 2 weeks you should stop fertilizing instead of giving them full strength. the necrosis may be a symptom of overfert and pH difference.

that's just my opinion.

take care

 

[Bruce_Lee]

Ah, ok. SOOOOoooo many things to learn.

Air Movement
Atmosphere & Res. Temp
RH
Watering & Nute Schedules
Reciepes
PPM
PH
Flushing/Leeching
Pruning
Curing

ahhhhhhhhhhhhhhhh

LOL

 

[Bruce_Lee]

I think that they were drowning. The rockwool wasn't getting dry time.

Could that be the reason for the leaves looking like that? Suffocation?

 

[stoneypenguin]

Im having the same type of problem in Coco. Would be intrested to know what you find out. My money has been on some type of PH problem or lockout, but Im still not sure and havnt solved the problem yet.

Are you using a PH pen or test kit? Im using a GH test kit and usually go for a yellowish green when I PH test. Ive seen people talking about .1 diffrences when it comes to PH though, so maybe "yellowish green" just isnt good enough, lol... Planning on getting a proper EC/PH meter as soon as I get some extra $, but until then...