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Yellowing and spotting
- Thread starter pickledLSD
- Start date
i love herb
Member
every watering the bottle recommended dosagepickledLSD said:
those are not really ferts so you cant burn them with it
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pickledLSD
Active member
Just as I start to think everything is getting better she takes a turn for the worse. Here's how I found her today when I got home from work. I have no idea what's going on here people, I've tried everything that I thought would help and I've only made things worse. Humidity has dropped to around 35% and temps are at 85 during lights on. I'm going to try and raise the humidity and see what happens. Does she still look hungry to you guys?
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hhhmmm
hhhmmm
Looks like the start of a mag def,but I know better with that fresh soil.I think the ph is alil low and it's tryin ta cause lockout.Next time ya water use plain tap water with a neutral ph of 7 (that's all I ever use).I think that's why FF ph's there soil so low,so folks can use water right out of the tap.That and the more micro-critter activity (by feedin em) ya have,the more the ph will go up.Hang in there it'll get better.Btw the bottom pics are jus old scars from the burn.The very bottom pic is the plant dumpin what it doesn't need.Keep us posted.later,BC
hhhmmm
Looks like the start of a mag def,but I know better with that fresh soil.I think the ph is alil low and it's tryin ta cause lockout.Next time ya water use plain tap water with a neutral ph of 7 (that's all I ever use).I think that's why FF ph's there soil so low,so folks can use water right out of the tap.That and the more micro-critter activity (by feedin em) ya have,the more the ph will go up.Hang in there it'll get better.Btw the bottom pics are jus old scars from the burn.The very bottom pic is the plant dumpin what it doesn't need.Keep us posted.later,BC
Hey I jus noticed yer temps were 85,that's gettin up there ta not be runnin co2.Plants are like us when it comes ta temps,if yer comfortable,yer plants are too.The humidity could come up too.If yer havin touble gettin it up (use viagra lol j/k) use a small pail or maybe a sturdy bowl and fill it almost to the top with water,roll up a newspaper and stick it in so one end sticks out of the water.This breaks the surface tention of the water and the paper acts like a wick,it'll help.I wanted touch on the ph thing again.Right now yer soil ph is low,after awhile it will raise.It's then I think you will benefit from ph-ing yer water/nutes alil lower,6.8 is perfect.I don't cuz I lost my ph pen years ago and REFUSE ta buy another one.lol I never have any problems tho.Hope this helps. BC
pickledLSD
Active member
Ok, I did the water/wick thing and turned off the 3 CFLs I had in there to lower the temp until my other fans get here. My PH pen should be arriving any day now, I'll do like you said and water with plain tap water next time (according to my current tester the tap water here has a ph of about 7 like you said.) I'll let you know how it goes. Thanks again everyone, especially you B.C.
Ganja Guerrilla
New member
PickledLSD
I believe you need a good flush to leech out excess ferts, your soil contains ferts, that cause this issue and you have been supplemental feeding ferts,
most ferts are acidic, if you didnt PH correct the supplemental ferts you added you may have pushed the PH over the optimum zone and begun lockout which is what I now see in the plant
your PH is low IMO 6.5 - 6.8 is optimum PH
I have about 25 pics of different plants & different strains all affected in the same way from MG soils....signs of def's , spotting necrotic patches then burns....MG soils contain ammonical nitrogen ferts that are coated for a slow release, & I believe thats why you see things escalating, the watering is releasing more & more
ammonical nitrogen ( this type of nitrogen burns & is in MG soils )
complete a soil runoff PH test.......
with PH corrected water (6.5-6.8PH ) pour enough water in the pots so the water runs out the bottom of the pot ...collect & test the PH of this runoff water....
If the PH reading is out of optimum range 6.5-6.8 PH, you need to flush your plant.
Flush with PH corrected water, till in optimum PH range, 3 times the volume of the pots, rule of thumb but may require much more flushing if the rootball is thick & sour
EG: 1 gal pot = 3 gal. flush
add 1/2 strength nutes to the last gallon of the flush.
edit: new pen arriving....dont forget to calibrate it, with 4.0 & 7.0 calibrating solutions
I believe you need a good flush to leech out excess ferts, your soil contains ferts, that cause this issue and you have been supplemental feeding ferts,
most ferts are acidic, if you didnt PH correct the supplemental ferts you added you may have pushed the PH over the optimum zone and begun lockout which is what I now see in the plant
your PH is low IMO 6.5 - 6.8 is optimum PH
I have about 25 pics of different plants & different strains all affected in the same way from MG soils....signs of def's , spotting necrotic patches then burns....MG soils contain ammonical nitrogen ferts that are coated for a slow release, & I believe thats why you see things escalating, the watering is releasing more & more
ammonical nitrogen ( this type of nitrogen burns & is in MG soils )
complete a soil runoff PH test.......
with PH corrected water (6.5-6.8PH ) pour enough water in the pots so the water runs out the bottom of the pot ...collect & test the PH of this runoff water....
If the PH reading is out of optimum range 6.5-6.8 PH, you need to flush your plant.
Flush with PH corrected water, till in optimum PH range, 3 times the volume of the pots, rule of thumb but may require much more flushing if the rootball is thick & sour
EG: 1 gal pot = 3 gal. flush
add 1/2 strength nutes to the last gallon of the flush.
edit: new pen arriving....dont forget to calibrate it, with 4.0 & 7.0 calibrating solutions
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pickledLSD
Active member
thanks Ganja. My next step will be to raise the ph as you and B.C. have said. I don't know if you saw that I had transplanted into Fox Farm soil or not but when I did I loosened the root ball and removed almost all of the MG soil. Wheb I left for work this morning the temp was 80 and the humidity was about 50. As soon as I get home I'm going to flush with tap water until my runoff ph is around 6.8 because she was looking worse this morning. Thanks for the help, I'll keep this thread updated.
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pickledLSD
Active member
I just got through flushing, the run-off was at 6.6ph when I was done. I'm turning the 250w HPS off for right now and turning the CFL's back on to get her at a comfortable temp and humidity level at least until she either heals or dies. We'll see how she is in the morning.
For future reference, what do you guys recommend to raise my waters ph when I do add ferts and it drops to about 6.0-6.2?
For future reference, what do you guys recommend to raise my waters ph when I do add ferts and it drops to about 6.0-6.2?
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Ganja Guerrilla
New member
I see that you have repotted in fox farms, that soil too contains ferts , organic but still contains ferts, so you would have been in the same situation regardless, due to the supplemental feeding..
youll get it back
these plants although somewhat touchy to keep in perfect order with us pushing them, are actually difficult to kill
edit: mix your ferts test the PH and correct as necessary, water and flushing water all to be ph corrected....everything that goes in is 6.5-6.8 PH and you will not have that issue
youll get it back
these plants although somewhat touchy to keep in perfect order with us pushing them, are actually difficult to kill
edit: mix your ferts test the PH and correct as necessary, water and flushing water all to be ph corrected....everything that goes in is 6.5-6.8 PH and you will not have that issue
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pickledLSD
Active member
Ok, I understand about the soil thing. Here's what I was asking about the ph with the fert water. I use tap water that has a ph of about 6.8-7.0 but when I add my ferts the ph drops to the low 6s. What could I use to adjust the ph back up to the 6.5-6.8 range after I mix the ferts in? I saw that Earth Juice has a nice ph up product but I was wondering if there was anything I could just buy at the store cheaper. There are no shops anywhere near me that carry anything I need so I have to order most of my stuff of the internet-soil, ferts, etc.
BTW, she's definately looking better already. She has some battle wounds but she's looking perky again and starting to put out some new growth for the first time in a couple of days.
BTW, she's definately looking better already. She has some battle wounds but she's looking perky again and starting to put out some new growth for the first time in a couple of days.
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Ganja Guerrilla
New member
sorry I missunderstood...........
when your PH is too low you adjust with
PH-UP correcting solution, potassium based products are best as our plants use large quantities of this element thru all its cycles and its cheap
http://cgi.ebay.com/Vita-Grow-pH-Up...ryZ20540QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
phosphoric acid is best for PH down for the same reasons
glad to hear the girls are doing better
when your PH is too low you adjust with
PH-UP correcting solution, potassium based products are best as our plants use large quantities of this element thru all its cycles and its cheap
http://cgi.ebay.com/Vita-Grow-pH-Up...ryZ20540QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
phosphoric acid is best for PH down for the same reasons
glad to hear the girls are doing better
pickledLSD
Active member
That's exactly along the lines of what I was looking for. Thanks again for the help Ganja.
pickledLSD
Active member
Do the cool mist humidifiers work pretty good? I was thinking about getting a small one because my humidity has been this low since I started growing. Especially when the HPS is on.
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pickledLSD
Active member
The lights just came on and she's slowly looking better and better. The temp is about 78 now and the humidity is around 55%. ^Does anyone have any opinions on cool mist humidifiers?^
VanGrow
Member
i have a cool mist from cvs and it works fine........i had humidity probs on my current grow....(summer months in south) kept nose diving to below 30% during the day from the ac unit being on.....leaves would yellow and die....stunted growth etc...first i fed them 2x of course making it alot worse....until i took out the ole humidifier....turned off ac let temps go to 88* and whamo....plants began to grow again fast....i know what everyone says but....i think 60-70 humidity is great and 82-88* room temp for soil....why??? so the nutes can break down in the medium....to me 78* room means cold roots when watered (in soil)....especially with a fan on em......i think temp and humidity is an easily tossed around term yet there are many different temps to be considered in the grow space....the upper air,lower air, under the light, in the breeze from the fan...etc....JMO....try it...another thing is i have 3 thermometers all new with humidity readings...i can take all 3 side by side...any where at any time and they all read differently....so dont be so sure your 20$ therm is dead on accurate...dont feed when you see new growth im sure theres nutes in the soil now....use properly ph ed water and let them dry ..... feed when needed...use a wet towel in front of a fan as a temporary solution...a true green house is warm and humid....
good luck
Van
good luck
Van
pickledLSD
Active member
Ok, I'll be going to get a humidifier this weekend. I know exactly what you mean about this weather in the south. I think she's looking well enough for me to turn the HPS back on now, that'll raise the temp back to the lower 80's and I'll try the towel thing until I get a humidifier. I won't be feeding for the next few waterings. Maybe I should look into getting a better digital thermometer. She's still looking better, I'll post some pics this afternoon. Thanks VanGrow.
pickledLSD
Active member
Ok people, last update and then I'll let this thread die. I think everything is solved now and I just wanted to say thanks to everyone who helped one last time. She'd be dead if it weren't for you guys. Yesterday she showed her first female preflower and today she is exactly 5 weeks old. I still haven't fed or even watered again since I flushed. I put a humidifier in with her and got the humidity up to about 60 and the temp is now around 83. Sorry about the crappy pics, I can't find my charger for my camera so I've been using my phone. 
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