help weird leaf problem.. please help..

XxGaNjAxX

Member

Jan 18, 2011

• #1

hey guys i need some help. my plant recently in the past couple weeks has come up with a weird yellow, orange, and copper burn to the leaves. i thought it was a magnesium problem but it persisted so i have stopped. What do you think?

here check them out..

 

darkdestruction420

Well-Known Member

Jan 18, 2011

• #2

what is your ph? have you been checking your water before watering the plants? how often and how much have you been feeding?

 

XxGaNjAxX

Member

Jan 19, 2011

• #3

not recently but i used my friends ph meter when i started growing her and for the first to weeks of veg i used tap because the ph was always 6.3 or 6.4.. im going tomorrow to go buy another ph meter for my water wand my soil

 

XxGaNjAxX

Member

Jan 19, 2011

• #4

yup thats probably the problem used a ph tester and it was like 7.6 or so anyone know any household things i can use to lower the ph? i need help bad i can see that my babies are getting worse..

 

DJ TEEREKS

Active Member

Jan 19, 2011

• #5

Go buy or order some ph down. Also check the ph after nutes as they will usually lower ph.

 

XxGaNjAxX

Member

Jan 21, 2011

• #6

yea i lowered the ph with lemon juice been watering with it and youre right the ph does go down when i add the nutes whats optimal ph you think? for soil grow?

 

XxGaNjAxX

Member

Jan 21, 2011

• #7

also i trimmed off most of the bad leaves that had the problem. plant is looking better, just hoping that the buds wont get infected with this orange crap

 

K

krok

Active Member

Jan 21, 2011

• #8

XxGaNjAxX said:

also i trimmed off most of the bad leaves that had the problem. plant is looking better, just hoping that the buds wont get infected with this orange crap

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Just a quick advice, don't cut all bad leaves as they are useful both for you (diagnosing, observe response) and the plant (as long as it has some green).
(unless it's fungus, which I have no experience with).

yea i lowered the ph with lemon juice been watering with it and youre right the ph does go down when i add the nutes whats optimal ph you think? for soil grow?

Click to expand...

Citric acid (powder) is what I use for PH-down when growing in organic media. It will help with P-uptake also. Optimal for soil is around 6.8.

 

XxGaNjAxX

Member

Jan 26, 2011

• #9

thanks krok!
and also i trimmed her before i saw this but shes doing fine i think they were just dying off because of bud production..
im also doing some clones in an aeroponics system but i cant keep the ph in the resivoir to stay at a steady ph..?
any suggestions?

 

ChubbySoap

Well-Known Member

Jan 27, 2011

• #10

would food-grade phosphoric acid from a local brewers shop work?

it's non-foamy even...

 

L

legalizeitcanada

Well-Known Member

Jan 27, 2011

• #11

Did you ever look on the under sides of the leaves, pic four really looks like you have an aphid problem, you will see their eggs all over, it looks like tiny grains of sand and if you got a scope or magnifying glass you should be able to see em, to get rid of them simply wash down the plant with water, hope this helps!

 

DJ TEEREKS

Active Member

Feb 4, 2011

• #12

A good Ph for soil is 6.8-7 with a runoff Ph around 6.4. Let the water in your resivoir sit for 48 hours, the chlorine in the water will gas out which will lower the Ph.